Merge branch 'sverker/add-since-doc/OTP-15460' into maint

* sverker/add-since-doc/OTP-15460:
  Fill in since for multi-clause functions in erlang.erl
  Fix since attribute for troubled function docs
  Add empty 'since' attribute for old modules and functions
  Add since attribute to dtd
  Add "since" attributes in xml for new functions and modules
  erl_docgen: Generate "since" OTP version in html
  erl_interface: Fix doc for return type 'struct hostent'

10 files changed, 776 insertions, 776 deletions

diff --git a/erts/doc/src/atomics.xml b/erts/doc/src/atomics.xml
index 82b8ab4aa6..f552c11e18 100644
--- a/erts/doc/src/atomics.xml
+++ b/erts/doc/src/atomics.xml
@@ -23,7 +23,7 @@
 
     <title>atomics</title>
   </header>
-  <module>atomics</module>
+  <module since="OTP 21.2">atomics</module>
   <modulesummary>Atomic Functions</modulesummary>
   <description>
     <p>This module provides a set of functions to do atomic operations towards
@@ -70,7 +70,7 @@
 
   <funcs>
     <func>
-      <name name="new" arity="2"/>
+      <name name="new" arity="2" since="OTP 21.2"/>
       <fsummary>Create atomic array</fsummary>
       <desc>
         <p>Create a new atomic array of <c><anno>Arity</anno></c> atomics.</p>
@@ -89,7 +89,7 @@
     </func>
 
     <func>
-      <name name="put" arity="3"/>
+      <name name="put" arity="3" since="OTP 21.2"/>
       <fsummary>Set atomic value</fsummary>
       <desc>
         <p>Set atomic to <c><anno>Value</anno></c>.</p>
@@ -97,7 +97,7 @@
     </func>
 
     <func>
-      <name name="get" arity="2"/>
+      <name name="get" arity="2" since="OTP 21.2"/>
       <fsummary>Read atomic value</fsummary>
       <desc>
         <p>Read atomic value.</p>
@@ -105,7 +105,7 @@
     </func>
 
     <func>
-      <name name="add" arity="3"/>
+      <name name="add" arity="3" since="OTP 21.2"/>
       <fsummary>Add to atomic</fsummary>
       <desc>
         <p>Add <c><anno>Incr</anno></c> to atomic.</p>
@@ -113,7 +113,7 @@
     </func>
 
     <func>
-      <name name="add_get" arity="3"/>
+      <name name="add_get" arity="3" since="OTP 21.2"/>
       <fsummary>Atomic add and get</fsummary>
       <desc>
         <p>Atomic addition and return of the result.</p>
@@ -121,7 +121,7 @@
     </func>
 
     <func>
-      <name name="sub" arity="3"/>
+      <name name="sub" arity="3" since="OTP 21.2"/>
       <fsummary>Subtract from atomic</fsummary>
       <desc>
         <p>Subtract <c><anno>Decr</anno></c> from atomic.</p>
@@ -129,7 +129,7 @@
     </func>
 
     <func>
-      <name name="sub_get" arity="3"/>
+      <name name="sub_get" arity="3" since="OTP 21.2"/>
       <fsummary>Atomic sub and get</fsummary>
       <desc>
         <p>Atomic subtraction and return of the result.</p>
@@ -137,7 +137,7 @@
     </func>
 
     <func>
-      <name name="exchange" arity="3"/>
+      <name name="exchange" arity="3" since="OTP 21.2"/>
       <fsummary>Atomic exchange.</fsummary>
       <desc>
         <p>Atomically replaces the value of the atomic with
@@ -147,7 +147,7 @@
     </func>
     
     <func>
-    <name name="compare_exchange" arity="4"/>
+    <name name="compare_exchange" arity="4" since="OTP 21.2"/>
        <fsummary>Atomic compare and exchange.</fsummary>
        <desc>
          <p>Atomically compares the atomic with <c><anno>Expected</anno></c>,
@@ -158,7 +158,7 @@
     </func>
     
     <func>
-      <name name="info" arity="1"/>
+      <name name="info" arity="1" since="OTP 21.2"/>
       <fsummary>Get information about atomic array.</fsummary>
       <desc>
         <p>Return information about an atomic array in a map. The map
diff --git a/erts/doc/src/counters.xml b/erts/doc/src/counters.xml
index a7b6c61457..3d26093a59 100644
--- a/erts/doc/src/counters.xml
+++ b/erts/doc/src/counters.xml
@@ -23,7 +23,7 @@
 
     <title>counters</title>
   </header>
-  <module>counters</module>
+  <module since="OTP 21.2">counters</module>
   <modulesummary>Counter Functions</modulesummary>
   <description>
     <p>This module provides a set of functions to do operations towards
@@ -71,7 +71,7 @@
 
   <funcs>
     <func>
-      <name name="new" arity="2"/>
+      <name name="new" arity="2" since="OTP 21.2"/>
       <fsummary>Create counter array</fsummary>
       <desc>
         <p>Create a new counter array of <c><anno>Size</anno></c> counters.</p>
@@ -107,7 +107,7 @@
     </func>
 
     <func>
-      <name name="get" arity="2"/>
+      <name name="get" arity="2" since="OTP 21.2"/>
       <fsummary>Read counter value</fsummary>
       <desc>
         <p>Read counter value.</p>
@@ -115,7 +115,7 @@
     </func>
 
     <func>
-      <name name="add" arity="3"/>
+      <name name="add" arity="3" since="OTP 21.2"/>
       <fsummary>Add to counter</fsummary>
       <desc>
         <p>Add <c><anno>Incr</anno></c> to counter at index
@@ -124,7 +124,7 @@
     </func>
 
     <func>
-      <name name="sub" arity="3"/>
+      <name name="sub" arity="3" since="OTP 21.2"/>
       <fsummary>Subtract from counter</fsummary>
       <desc>
         <p>Subtract <c><anno>Decr</anno></c> from counter at index
@@ -133,7 +133,7 @@
     </func>
 
     <func>
-      <name name="put" arity="3"/>
+      <name name="put" arity="3" since="OTP 21.2"/>
       <fsummary>Set counter to value</fsummary>
       <desc>
         <p>Write <c><anno>Value</anno></c> to counter at index
@@ -151,7 +151,7 @@
     </func>
 
     <func>
-      <name name="info" arity="1"/>
+      <name name="info" arity="1" since="OTP 21.2"/>
       <fsummary>Get information about counter array.</fsummary>
       <desc>
         <p>Return information about a counter array in a map. The map
diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml
index 7055889e4a..58678f2393 100644
--- a/erts/doc/src/erl_driver.xml
+++ b/erts/doc/src/erl_driver.xml
@@ -944,7 +944,7 @@ int suggested_stack_size;</code>
 
   <funcs>
     <func>
-      <name><ret>void</ret><nametext>add_driver_entry(ErlDrvEntry
+      <name since=""><ret>void</ret><nametext>add_driver_entry(ErlDrvEntry
         *de)</nametext></name>
       <fsummary>Add a driver entry.</fsummary>
       <desc>
@@ -968,7 +968,7 @@ int suggested_stack_size;</code>
     </func>
 
     <func>
-      <name><ret>void *</ret>
+      <name since=""><ret>void *</ret>
         <nametext>driver_alloc(ErlDrvSizeT size)</nametext></name>
       <fsummary>Allocate memory.</fsummary>
       <desc>
@@ -985,7 +985,7 @@ int suggested_stack_size;</code>
     </func>
 
     <func>
-      <name><ret>ErlDrvBinary *</ret>
+      <name since=""><ret>ErlDrvBinary *</ret>
         <nametext>driver_alloc_binary(ErlDrvSizeT size)</nametext></name>
       <fsummary>Allocate a driver binary.</fsummary>
       <desc>
@@ -1008,7 +1008,7 @@ int suggested_stack_size;</code>
     </func>
 
     <func>
-      <name><ret>long</ret><nametext>driver_async(ErlDrvPort port, unsigned
+      <name since=""><ret>long</ret><nametext>driver_async(ErlDrvPort port, unsigned
         int* key, void (*async_invoke)(void*), void* async_data, void
         (*async_free)(void*))</nametext></name>
       <fsummary>Perform an asynchronous call within a driver.</fsummary>
@@ -1076,7 +1076,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>unsigned int</ret><nametext>driver_async_port_key(ErlDrvPort
+      <name since="OTP R16B02"><ret>unsigned int</ret><nametext>driver_async_port_key(ErlDrvPort
         port)</nametext></name>
       <fsummary>Calculate an async key from an ErlDrvPort.</fsummary>
       <desc>
@@ -1096,7 +1096,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret>
+      <name since=""><ret>long</ret>
         <nametext>driver_binary_dec_refc(ErlDrvBinary *bin)</nametext></name>
       <fsummary>Decrement the reference count of a driver binary.</fsummary>
       <desc>
@@ -1117,7 +1117,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret>
+      <name since=""><ret>long</ret>
         <nametext>driver_binary_get_refc(ErlDrvBinary *bin)</nametext></name>
       <fsummary>Get the reference count of a driver binary.</fsummary>
       <desc>
@@ -1128,7 +1128,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret>
+      <name since=""><ret>long</ret>
         <nametext>driver_binary_inc_refc(ErlDrvBinary *bin)</nametext></name>
       <fsummary>Increment the reference count of a driver binary.</fsummary>
       <desc>
@@ -1140,7 +1140,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTermData</ret><nametext>driver_caller(ErlDrvPort
+      <name since=""><ret>ErlDrvTermData</ret><nametext>driver_caller(ErlDrvPort
         port)</nametext></name>
       <fsummary>Return the process making the driver call.</fsummary>
       <desc>
@@ -1183,7 +1183,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since=""><ret>int</ret>
         <nametext>driver_cancel_timer(ErlDrvPort port)</nametext></name>
       <fsummary>Cancel a previously set timer.</fsummary>
       <desc>
@@ -1196,7 +1196,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_compare_monitors(const ErlDrvMonitor
+      <name since=""><ret>int</ret><nametext>driver_compare_monitors(const ErlDrvMonitor
         *monitor1, const ErlDrvMonitor *monitor2)</nametext></name>
       <fsummary>Compare two monitors.</fsummary>
       <desc>
@@ -1211,7 +1211,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTermData</ret><nametext>driver_connected(ErlDrvPort
+      <name since=""><ret>ErlDrvTermData</ret><nametext>driver_connected(ErlDrvPort
         port)</nametext></name>
       <fsummary>Return the port owner process.</fsummary>
       <desc>
@@ -1223,7 +1223,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvPort</ret><nametext>driver_create_port(ErlDrvPort port,
+      <name since=""><ret>ErlDrvPort</ret><nametext>driver_create_port(ErlDrvPort port,
         ErlDrvTermData owner_pid, char* name,
         ErlDrvData drv_data)</nametext></name>
       <fsummary>Create a new port (driver instance).</fsummary>
@@ -1269,7 +1269,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_demonitor_process(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_demonitor_process(ErlDrvPort port,
         const ErlDrvMonitor *monitor)</nametext></name>
       <fsummary>Stop monitoring a process from a driver.</fsummary>
       <desc>
@@ -1281,7 +1281,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvSizeT</ret><nametext>driver_deq(ErlDrvPort port,
+      <name since=""><ret>ErlDrvSizeT</ret><nametext>driver_deq(ErlDrvPort port,
         ErlDrvSizeT size)</nametext></name>
       <fsummary>Dequeue data from the head of the driver queue.</fsummary>
       <desc>
@@ -1299,7 +1299,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_enq(ErlDrvPort port, char* buf,
+      <name since=""><ret>int</ret><nametext>driver_enq(ErlDrvPort port, char* buf,
         ErlDrvSizeT len)</nametext></name>
       <fsummary>Enqueue data in the driver queue.</fsummary>
       <desc>
@@ -1325,7 +1325,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_enq_bin(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_enq_bin(ErlDrvPort port,
         ErlDrvBinary *bin, ErlDrvSizeT offset, ErlDrvSizeT len)</nametext>
       </name>
       <fsummary>Enqueue binary in the driver queue.</fsummary>
@@ -1346,7 +1346,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_enqv(ErlDrvPort port, ErlIOVec *ev,
+      <name since=""><ret>int</ret><nametext>driver_enqv(ErlDrvPort port, ErlIOVec *ev,
         ErlDrvSizeT skip)</nametext></name>
       <fsummary>Enqueue vector in the driver queue.</fsummary>
       <desc>
@@ -1365,11 +1365,11 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_failure(ErlDrvPort port, int
+      <name since=""><ret>int</ret><nametext>driver_failure(ErlDrvPort port, int
         error)</nametext></name>
-      <name><ret>int</ret><nametext>driver_failure_atom(ErlDrvPort port, char
+      <name since=""><ret>int</ret><nametext>driver_failure_atom(ErlDrvPort port, char
         *string)</nametext></name>
-      <name><ret>int</ret><nametext>driver_failure_posix(ErlDrvPort port, int
+      <name since=""><ret>int</ret><nametext>driver_failure_posix(ErlDrvPort port, int
         error)</nametext></name>
       <fsummary>Fail with error.</fsummary>
       <desc>
@@ -1393,7 +1393,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_failure_eof(ErlDrvPort
+      <name since=""><ret>int</ret><nametext>driver_failure_eof(ErlDrvPort
         port)</nametext></name>
       <fsummary>Fail with EOF.</fsummary>
       <desc>
@@ -1408,7 +1408,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>driver_free(void *ptr)</nametext></name>
+      <name since=""><ret>void</ret><nametext>driver_free(void *ptr)</nametext></name>
       <fsummary>Free an allocated memory block.</fsummary>
       <desc>
         <marker id="driver_free"></marker>
@@ -1422,7 +1422,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since=""><ret>void</ret>
         <nametext>driver_free_binary(ErlDrvBinary *bin)</nametext></name>
       <fsummary>Free a driver binary.</fsummary>
       <desc>
@@ -1436,7 +1436,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTermData</ret>
+      <name since=""><ret>ErlDrvTermData</ret>
         <nametext>driver_get_monitored_process(ErlDrvPort port, const
         ErlDrvMonitor *monitor)</nametext></name>
       <fsummary>Retrieve the process ID from a monitor.</fsummary>
@@ -1452,7 +1452,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since=""><ret>int</ret>
         <nametext>driver_get_now(ErlDrvNowData *now)</nametext></name>
       <fsummary>Read a system time stamp.</fsummary>
       <desc>
@@ -1473,7 +1473,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_lock_driver(ErlDrvPort
+      <name since=""><ret>int</ret><nametext>driver_lock_driver(ErlDrvPort
         port)</nametext></name>
       <fsummary>Ensure the driver is never unloaded.</fsummary>
       <desc>
@@ -1486,7 +1486,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTermData</ret><nametext>driver_mk_atom(char*
+      <name since=""><ret>ErlDrvTermData</ret><nametext>driver_mk_atom(char*
         string)</nametext></name>
       <fsummary>Make an atom from a name.</fsummary>
       <desc>
@@ -1501,7 +1501,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTermData</ret><nametext>driver_mk_port(ErlDrvPort
+      <name since=""><ret>ErlDrvTermData</ret><nametext>driver_mk_port(ErlDrvPort
         port)</nametext></name>
       <fsummary>Make an Erlang term port from a port.</fsummary>
       <desc>
@@ -1517,7 +1517,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_monitor_process(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_monitor_process(ErlDrvPort port,
         ErlDrvTermData process, ErlDrvMonitor *monitor)</nametext></name>
       <fsummary>Monitor a process from a driver.</fsummary>
       <desc>
@@ -1540,7 +1540,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_output(ErlDrvPort port, char *buf,
+      <name since=""><ret>int</ret><nametext>driver_output(ErlDrvPort port, char *buf,
         ErlDrvSizeT len)</nametext></name>
       <fsummary>Send data from driver to port owner.</fsummary>
       <desc>
@@ -1560,7 +1560,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_output_binary(ErlDrvPort port, char
+      <name since=""><ret>int</ret><nametext>driver_output_binary(ErlDrvPort port, char
         *hbuf, ErlDrvSizeT hlen, ErlDrvBinary* bin, ErlDrvSizeT offset,
         ErlDrvSizeT len)</nametext></name>
       <fsummary>Send data from a driver binary to port owner.</fsummary>
@@ -1589,7 +1589,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_output_term(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_output_term(ErlDrvPort port,
         ErlDrvTermData* term, int n)</nametext></name>
       <fsummary>Send term data from driver to port owner.</fsummary>
       <desc>
@@ -1608,7 +1608,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_output2(ErlDrvPort port, char *hbuf,
+      <name since=""><ret>int</ret><nametext>driver_output2(ErlDrvPort port, char *hbuf,
         ErlDrvSizeT hlen, char *buf, ErlDrvSizeT len)</nametext></name>
       <fsummary>Send data and binary data to port owner.</fsummary>
       <desc>
@@ -1625,7 +1625,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_outputv(ErlDrvPort port, char* hbuf,
+      <name since=""><ret>int</ret><nametext>driver_outputv(ErlDrvPort port, char* hbuf,
         ErlDrvSizeT hlen, ErlIOVec *ev, ErlDrvSizeT skip)</nametext></name>
       <fsummary>Send vectorized data to port owner.</fsummary>
       <desc>
@@ -1654,7 +1654,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvPDL</ret>
+      <name since=""><ret>ErlDrvPDL</ret>
         <nametext>driver_pdl_create(ErlDrvPort port)</nametext></name>
       <fsummary>Create a port data lock.</fsummary>
       <desc>
@@ -1672,7 +1672,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret><nametext>driver_pdl_dec_refc(ErlDrvPDL
+      <name since=""><ret>long</ret><nametext>driver_pdl_dec_refc(ErlDrvPDL
         pdl)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1686,7 +1686,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret>
+      <name since=""><ret>long</ret>
         <nametext>driver_pdl_get_refc(ErlDrvPDL pdl)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1698,7 +1698,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>long</ret>
+      <name since=""><ret>long</ret>
         <nametext>driver_pdl_inc_refc(ErlDrvPDL pdl)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1712,7 +1712,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since=""><ret>void</ret>
         <nametext>driver_pdl_lock(ErlDrvPDL pdl)</nametext></name>
       <fsummary>Lock port data lock.</fsummary>
       <desc>
@@ -1723,7 +1723,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since=""><ret>void</ret>
         <nametext>driver_pdl_unlock(ErlDrvPDL pdl)</nametext></name>
       <fsummary>Unlock port data lock.</fsummary>
       <desc>
@@ -1734,7 +1734,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>SysIOVec *</ret><nametext>driver_peekq(ErlDrvPort port, int
+      <name since=""><ret>SysIOVec *</ret><nametext>driver_peekq(ErlDrvPort port, int
         *vlen)</nametext></name>
       <fsummary>Get the driver queue as a vector.</fsummary>
       <desc>
@@ -1755,7 +1755,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvSizeT</ret><nametext>driver_peekqv(ErlDrvPort port,
+      <name since="OTP R15B"><ret>ErlDrvSizeT</ret><nametext>driver_peekqv(ErlDrvPort port,
         ErlIOVec *ev)</nametext></name>
       <fsummary>Get the driver queue as an I/O vector.</fsummary>
       <desc>
@@ -1775,7 +1775,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_pushq(ErlDrvPort port, char* buf,
+      <name since=""><ret>int</ret><nametext>driver_pushq(ErlDrvPort port, char* buf,
         ErlDrvSizeT len)</nametext></name>
       <fsummary>Push data at the head of the driver queue.</fsummary>
       <desc>
@@ -1792,7 +1792,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_pushq_bin(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_pushq_bin(ErlDrvPort port,
         ErlDrvBinary *bin, ErlDrvSizeT offset, ErlDrvSizeT len)</nametext>
       </name>
       <fsummary>Push binary at the head of the driver queue.</fsummary>
@@ -1812,7 +1812,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_pushqv(ErlDrvPort port, ErlIOVec
+      <name since=""><ret>int</ret><nametext>driver_pushqv(ErlDrvPort port, ErlIOVec
         *ev, ErlDrvSizeT skip)</nametext></name>
       <fsummary>Push vector at the head of the driver queue.</fsummary>
       <desc>
@@ -1831,7 +1831,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_read_timer(ErlDrvPort port, unsigned
+      <name since=""><ret>int</ret><nametext>driver_read_timer(ErlDrvPort port, unsigned
         long *time_left)</nametext></name>
       <fsummary>Read the time left before time-out.</fsummary>
       <desc>
@@ -1844,7 +1844,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void *</ret>
+      <name since=""><ret>void *</ret>
         <nametext>driver_realloc(void *ptr, ErlDrvSizeT size)</nametext></name>
       <fsummary>Resize an allocated memory block.</fsummary>
       <desc>
@@ -1859,7 +1859,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvBinary *</ret>
+      <name since=""><ret>ErlDrvBinary *</ret>
         <nametext>driver_realloc_binary(ErlDrvBinary *bin, ErlDrvSizeT size)
         </nametext></name>
       <fsummary>Resize a driver binary.</fsummary>
@@ -1873,7 +1873,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_select(ErlDrvPort port, ErlDrvEvent
+      <name since=""><ret>int</ret><nametext>driver_select(ErlDrvPort port, ErlDrvEvent
         event, int mode, int on)</nametext></name>
       <fsummary>Provides an event for having the emulator call the driver.
       </fsummary>
@@ -1932,7 +1932,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_send_term(ErlDrvPort port,
+      <name since=""><ret>int</ret><nametext>driver_send_term(ErlDrvPort port,
         ErlDrvTermData receiver, ErlDrvTermData* term, int n)</nametext></name>
       <fsummary>Send term data to other process than port owner process.
       </fsummary>
@@ -1958,7 +1958,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>driver_set_timer(ErlDrvPort port, unsigned
+      <name since=""><ret>int</ret><nametext>driver_set_timer(ErlDrvPort port, unsigned
         long time)</nametext></name>
       <fsummary>Set a timer to call the driver.</fsummary>
       <desc>
@@ -1977,7 +1977,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvSizeT</ret>
+      <name since=""><ret>ErlDrvSizeT</ret>
         <nametext>driver_sizeq(ErlDrvPort port)</nametext></name>
       <fsummary>Return the size of the driver queue.</fsummary>
       <desc>
@@ -1991,7 +1991,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>driver_system_info(ErlDrvSysInfo
+      <name since=""><ret>void</ret><nametext>driver_system_info(ErlDrvSysInfo
         *sys_info_ptr, size_t size)</nametext></name>
       <fsummary>Get information about the Erlang runtime system.</fsummary>
       <desc>
@@ -2008,7 +2008,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvSizeT</ret><nametext>driver_vec_to_buf(ErlIOVec *ev,
+      <name since=""><ret>ErlDrvSizeT</ret><nametext>driver_vec_to_buf(ErlIOVec *ev,
         char *buf, ErlDrvSizeT len)</nametext></name>
       <fsummary>Collect data segments into a buffer.</fsummary>
       <desc>
@@ -2029,7 +2029,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_busy_msgq_limits(ErlDrvPort port,
+      <name since="OTP R16B"><ret>void</ret><nametext>erl_drv_busy_msgq_limits(ErlDrvPort port,
         ErlDrvSizeT *low, ErlDrvSizeT *high)</nametext></name>
       <fsummary>Set and get limits for busy port message queue.</fsummary>
       <desc>
@@ -2083,7 +2083,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_cond_broadcast(ErlDrvCond
+      <name since=""><ret>void</ret><nametext>erl_drv_cond_broadcast(ErlDrvCond
         *cnd)</nametext></name>
       <fsummary>Broadcast on a condition variable.</fsummary>
       <desc>
@@ -2097,7 +2097,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvCond *</ret><nametext>erl_drv_cond_create(char
+      <name since=""><ret>ErlDrvCond *</ret><nametext>erl_drv_cond_create(char
         *name)</nametext></name>
       <fsummary>Create a condition variable.</fsummary>
       <desc>
@@ -2114,7 +2114,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_cond_destroy(ErlDrvCond
+      <name since=""><ret>void</ret><nametext>erl_drv_cond_destroy(ErlDrvCond
         *cnd)</nametext></name>
       <fsummary>Destroy a condition variable.</fsummary>
       <desc>
@@ -2128,7 +2128,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>char *</ret><nametext>erl_drv_cond_name(ErlDrvCond
+      <name since="OTP R16B02"><ret>char *</ret><nametext>erl_drv_cond_name(ErlDrvCond
         *cnd)</nametext></name>
       <fsummary>Get name of driver mutex.</fsummary>
       <desc>
@@ -2142,7 +2142,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_cond_signal(ErlDrvCond
+      <name since=""><ret>void</ret><nametext>erl_drv_cond_signal(ErlDrvCond
         *cnd)</nametext></name>
       <fsummary>Signal on a condition variable.</fsummary>
       <desc>
@@ -2156,7 +2156,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_cond_wait(ErlDrvCond *cnd,
+      <name since=""><ret>void</ret><nametext>erl_drv_cond_wait(ErlDrvCond *cnd,
         ErlDrvMutex *mtx)</nametext></name>
       <fsummary>Wait on a condition variable.</fsummary>
       <desc>
@@ -2185,7 +2185,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_consume_timeslice(ErlDrvPort port,
+      <name since="OTP R16B"><ret>int</ret><nametext>erl_drv_consume_timeslice(ErlDrvPort port,
         int percent)</nametext></name>
       <fsummary>Give the runtime system a hint about how much CPU time the
         current driver callback call has consumed.</fsummary>
@@ -2228,7 +2228,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTime</ret><nametext>erl_drv_convert_time_unit(ErlDrvTime
+      <name since="OTP 18.3"><ret>ErlDrvTime</ret><nametext>erl_drv_convert_time_unit(ErlDrvTime
         val, ErlDrvTimeUnit from, ErlDrvTimeUnit to)</nametext></name>
       <fsummary>Convert time unit of a time value.</fsummary>
       <desc>
@@ -2254,7 +2254,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_equal_tids(ErlDrvTid tid1,
+      <name since=""><ret>int</ret><nametext>erl_drv_equal_tids(ErlDrvTid tid1,
         ErlDrvTid tid2)</nametext></name>
       <fsummary>Compare thread identifiers for equality.</fsummary>
       <desc>
@@ -2276,7 +2276,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_getenv(const char *key, char
+      <name since=""><ret>int</ret><nametext>erl_drv_getenv(const char *key, char
         *value, size_t *value_size)</nametext></name>
       <fsummary>Get the value of an environment variable.</fsummary>
       <desc>
@@ -2317,7 +2317,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_init_ack(ErlDrvPort port,
+      <name since="OTP 19.0"><ret>void</ret><nametext>erl_drv_init_ack(ErlDrvPort port,
         ErlDrvData res)</nametext></name>
       <fsummary>Acknowledge the start of the port.</fsummary>
       <desc>
@@ -2345,7 +2345,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvTime</ret>
+      <name since="OTP 18.3"><ret>ErlDrvTime</ret>
         <nametext>erl_drv_monotonic_time(ErlDrvTimeUnit time_unit)</nametext>
       </name>
       <fsummary>Get Erlang monotonic time.</fsummary>
@@ -2365,7 +2365,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>ErlDrvMutex *</ret><nametext>erl_drv_mutex_create(char
+      <name since=""><ret>ErlDrvMutex *</ret><nametext>erl_drv_mutex_create(char
         *name)</nametext></name>
       <fsummary>Create a mutex.</fsummary>
       <desc>
@@ -2380,7 +2380,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_mutex_destroy(ErlDrvMutex
+      <name since=""><ret>void</ret><nametext>erl_drv_mutex_destroy(ErlDrvMutex
         *mtx)</nametext></name>
       <fsummary>Destroy a mutex.</fsummary>
       <desc>
@@ -2395,7 +2395,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_mutex_lock(ErlDrvMutex
+      <name since=""><ret>void</ret><nametext>erl_drv_mutex_lock(ErlDrvMutex
         *mtx)</nametext></name>
       <fsummary>Lock a mutex.</fsummary>
       <desc>
@@ -2414,7 +2414,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>char *</ret><nametext>erl_drv_mutex_name(ErlDrvMutex
+      <name since="OTP R16B02"><ret>char *</ret><nametext>erl_drv_mutex_name(ErlDrvMutex
         *mtx)</nametext></name>
       <fsummary>Get name of driver mutex.</fsummary>
       <desc>
@@ -2428,7 +2428,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_mutex_trylock(ErlDrvMutex
+      <name since=""><ret>int</ret><nametext>erl_drv_mutex_trylock(ErlDrvMutex
         *mtx)</nametext></name>
       <fsummary>Try lock a mutex.</fsummary>
       <desc>
@@ -2447,7 +2447,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_mutex_unlock(ErlDrvMutex
+      <name since=""><ret>void</ret><nametext>erl_drv_mutex_unlock(ErlDrvMutex
         *mtx)</nametext></name>
       <fsummary>Unlock a mutex.</fsummary>
       <desc>
@@ -2460,7 +2460,7 @@ r = driver_async(myPort, &myKey, myData, myFunc);    ]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_output_term(ErlDrvTermData port,
+      <name since="OTP R16B"><ret>int</ret><nametext>erl_drv_output_term(ErlDrvTermData port,
         ErlDrvTermData* term, int n)</nametext></name>
       <fsummary>Send term data from driver to port owner.</fsummary>
       <desc>
@@ -2637,7 +2637,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_putenv(const char *key, char
+      <name since=""><ret>int</ret><nametext>erl_drv_putenv(const char *key, char
         *value)</nametext></name>
       <fsummary>Set the value of an environment variable.</fsummary>
       <desc>
@@ -2668,7 +2668,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>ErlDrvRWLock *</ret><nametext>erl_drv_rwlock_create(char
+      <name since=""><ret>ErlDrvRWLock *</ret><nametext>erl_drv_rwlock_create(char
         *name)</nametext></name>
       <fsummary>Create an rwlock.</fsummary>
       <desc>
@@ -2684,7 +2684,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_rwlock_destroy(ErlDrvRWLock
+      <name since=""><ret>void</ret><nametext>erl_drv_rwlock_destroy(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Destroy an rwlock.</fsummary>
       <desc>
@@ -2699,7 +2699,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>char *</ret><nametext>erl_drv_rwlock_name(ErlDrvRWLock
+      <name since="OTP R16B02"><ret>char *</ret><nametext>erl_drv_rwlock_name(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Get name of driver mutex.</fsummary>
       <desc>
@@ -2713,7 +2713,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_rwlock_rlock(ErlDrvRWLock
+      <name since=""><ret>void</ret><nametext>erl_drv_rwlock_rlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Read lock an rwlock.</fsummary>
       <desc>
@@ -2733,7 +2733,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_rwlock_runlock(ErlDrvRWLock
+      <name since=""><ret>void</ret><nametext>erl_drv_rwlock_runlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Read unlock an rwlock.</fsummary>
       <desc>
@@ -2746,7 +2746,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_rwlock_rwlock(ErlDrvRWLock
+      <name since=""><ret>void</ret><nametext>erl_drv_rwlock_rwlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Read/write lock an rwlock.</fsummary>
       <desc>
@@ -2766,7 +2766,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_rwlock_rwunlock(ErlDrvRWLock
+      <name since=""><ret>void</ret><nametext>erl_drv_rwlock_rwunlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Read/write unlock an rwlock.</fsummary>
       <desc>
@@ -2779,7 +2779,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_rwlock_tryrlock(ErlDrvRWLock
+      <name since=""><ret>int</ret><nametext>erl_drv_rwlock_tryrlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Try to read lock an rwlock.</fsummary>
       <desc>
@@ -2799,7 +2799,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_rwlock_tryrwlock(ErlDrvRWLock
+      <name since=""><ret>int</ret><nametext>erl_drv_rwlock_tryrwlock(ErlDrvRWLock
         *rwlck)</nametext></name>
       <fsummary>Try to read/write lock an rwlock.</fsummary>
       <desc>
@@ -2819,7 +2819,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_send_term(ErlDrvTermData port,
+      <name since="OTP R16B"><ret>int</ret><nametext>erl_drv_send_term(ErlDrvTermData port,
         ErlDrvTermData receiver, ErlDrvTermData* term, int n)</nametext></name>
       <fsummary>Send term data to other process than port owner process.
       </fsummary>
@@ -2843,7 +2843,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_set_os_pid(ErlDrvPort port,
+      <name since="OTP 19.0"><ret>void</ret><nametext>erl_drv_set_os_pid(ErlDrvPort port,
         ErlDrvSInt pid)</nametext></name>
       <fsummary>Set the os_pid for the port.</fsummary>
       <desc>
@@ -2857,7 +2857,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_thread_create(char *name, ErlDrvTid
+      <name since=""><ret>int</ret><nametext>erl_drv_thread_create(char *name, ErlDrvTid
         *tid, void * (*func)(void *), void *arg, ErlDrvThreadOpts
         *opts)</nametext></name>
       <fsummary>Create a thread.</fsummary>
@@ -2920,7 +2920,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_thread_exit(void
+      <name since=""><ret>void</ret><nametext>erl_drv_thread_exit(void
         *exit_value)</nametext></name>
       <fsummary>Terminate calling thread.</fsummary>
       <desc>
@@ -2939,7 +2939,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_thread_join(ErlDrvTid tid, void
+      <name since=""><ret>int</ret><nametext>erl_drv_thread_join(ErlDrvTid tid, void
         **exit_value)</nametext></name>
       <fsummary>Join with another thread.</fsummary>
       <desc>
@@ -2962,7 +2962,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>char *</ret><nametext>erl_drv_thread_name(ErlDrvTid
+      <name since="OTP R16B02"><ret>char *</ret><nametext>erl_drv_thread_name(ErlDrvTid
         tid)</nametext></name>
       <fsummary>Get name of driver mutex.</fsummary>
       <desc>
@@ -2976,7 +2976,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>ErlDrvThreadOpts *</ret>
+      <name since=""><ret>ErlDrvThreadOpts *</ret>
         <nametext>erl_drv_thread_opts_create(char *name)</nametext></name>
       <fsummary>Create thread options.</fsummary>
       <desc>
@@ -3005,7 +3005,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since=""><ret>void</ret>
         <nametext>erl_drv_thread_opts_destroy(ErlDrvThreadOpts *opts)</nametext>
       </name>
       <fsummary>Destroy thread options.</fsummary>
@@ -3020,7 +3020,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>ErlDrvTid</ret>
+      <name since=""><ret>ErlDrvTid</ret>
         <nametext>erl_drv_thread_self(void)</nametext></name>
       <fsummary>Get the thread identifier of the current thread.</fsummary>
       <desc>
@@ -3031,7 +3031,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>ErlDrvTime</ret><nametext>erl_drv_time_offset(ErlDrvTimeUnit
+      <name since="OTP 18.3"><ret>ErlDrvTime</ret><nametext>erl_drv_time_offset(ErlDrvTimeUnit
         time_unit)</nametext></name>
       <fsummary>Get current time offset.</fsummary>
       <desc>
@@ -3054,7 +3054,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void *</ret><nametext>erl_drv_tsd_get(ErlDrvTSDKey
+      <name since=""><ret>void *</ret><nametext>erl_drv_tsd_get(ErlDrvTSDKey
         key)</nametext></name>
       <fsummary>Get thread-specific data.</fsummary>
       <desc>
@@ -3069,7 +3069,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>erl_drv_tsd_key_create(char *name,
+      <name since=""><ret>int</ret><nametext>erl_drv_tsd_key_create(char *name,
         ErlDrvTSDKey *key)</nametext></name>
       <fsummary>Create a thread-specific data key.</fsummary>
       <desc>
@@ -3086,7 +3086,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_tsd_key_destroy(ErlDrvTSDKey
+      <name since=""><ret>void</ret><nametext>erl_drv_tsd_key_destroy(ErlDrvTSDKey
         key)</nametext></name>
       <fsummary>Destroy a thread-specific data key.</fsummary>
       <desc>
@@ -3111,7 +3111,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>erl_drv_tsd_set(ErlDrvTSDKey key, void
+      <name since=""><ret>void</ret><nametext>erl_drv_tsd_set(ErlDrvTSDKey key, void
         *data)</nametext></name>
       <fsummary>Set thread-specific data.</fsummary>
       <desc>
@@ -3138,7 +3138,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>char *</ret><nametext>erl_errno_id(int error)</nametext></name>
+      <name since=""><ret>char *</ret><nametext>erl_errno_id(int error)</nametext></name>
       <fsummary>Get Erlang error atom name from error number.</fsummary>
       <desc>
         <marker id="erl_errno_id"></marker>
@@ -3150,7 +3150,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>remove_driver_entry(ErlDrvEntry
+      <name since=""><ret>int</ret><nametext>remove_driver_entry(ErlDrvEntry
         *de)</nametext></name>
       <fsummary>Remove a driver entry.</fsummary>
       <desc>
@@ -3164,7 +3164,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>set_busy_port(ErlDrvPort port, int
+      <name since=""><ret>void</ret><nametext>set_busy_port(ErlDrvPort port, int
         on)</nametext></name>
       <fsummary>Signal or unsignal port as busy.</fsummary>
       <desc>
@@ -3195,7 +3195,7 @@ erl_drv_output_term(driver_mk_port(drvport), spec, sizeof(spec) / sizeof(spec[0]
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>set_port_control_flags(ErlDrvPort port,
+      <name since=""><ret>void</ret><nametext>set_port_control_flags(ErlDrvPort port,
         int flags)</nametext></name>
       <fsummary>Set flags on how to handle control entry function.</fsummary>
       <desc>
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index bbc12b0a56..5cbeddabd9 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -963,7 +963,7 @@ typedef struct {
 
   <funcs>
     <func>
-      <name><ret>void *</ret><nametext>enif_alloc(size_t size)</nametext></name>
+      <name since=""><ret>void *</ret><nametext>enif_alloc(size_t size)</nametext></name>
       <fsummary>Allocate dynamic memory.</fsummary>
       <desc>
         <p>Allocates memory of <c>size</c> bytes.</p>
@@ -974,7 +974,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since=""><ret>int</ret>
         <nametext>enif_alloc_binary(size_t size, ErlNifBinary* bin)</nametext>
       </name>
       <fsummary>Create a new binary.</fsummary>
@@ -998,7 +998,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>ErlNifEnv *</ret><nametext>enif_alloc_env()</nametext></name>
+      <name since="OTP R14B"><ret>ErlNifEnv *</ret><nametext>enif_alloc_env()</nametext></name>
       <fsummary>Create a new environment.</fsummary>
       <desc>
         <p>Allocates a new process independent environment. The environment can
@@ -1012,7 +1012,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void *</ret><nametext>enif_alloc_resource(ErlNifResourceType*
+      <name since="OTP R13B04"><ret>void *</ret><nametext>enif_alloc_resource(ErlNifResourceType*
         type, unsigned size)</nametext></name>
       <fsummary>Allocate a memory-managed resource object.</fsummary>
       <desc>
@@ -1022,7 +1022,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>size_t</ret><nametext>enif_binary_to_term(ErlNifEnv *env,
+      <name since="OTP 19.0"><ret>size_t</ret><nametext>enif_binary_to_term(ErlNifEnv *env,
         const unsigned char* data, size_t size, ERL_NIF_TERM *term,
         ErlNifBinaryToTerm opts)</nametext></name>
       <fsummary>Create a term from the external format.</fsummary>
@@ -1047,7 +1047,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>enif_clear_env(ErlNifEnv* env)</nametext>
+      <name since="OTP R14B"><ret>void</ret><nametext>enif_clear_env(ErlNifEnv* env)</nametext>
       </name>
       <fsummary>Clear an environment for reuse.</fsummary>
       <desc>
@@ -1058,7 +1058,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_compare(ERL_NIF_TERM lhs, ERL_NIF_TERM rhs)</nametext>
       </name>
       <fsummary>Compare two terms.</fsummary>
@@ -1073,7 +1073,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_compare_monitors(const ErlNifMonitor
+      <name since="OTP 20.0"><ret>int</ret><nametext>enif_compare_monitors(const ErlNifMonitor
         *monitor1, const ErlNifMonitor *monitor2)</nametext></name>
       <fsummary>Compare two monitors.</fsummary>
       <desc>
@@ -1088,7 +1088,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_cond_broadcast(ErlNifCond *cnd)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1098,7 +1098,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>ErlNifCond *</ret>
+      <name since="OTP R13B04"><ret>ErlNifCond *</ret>
         <nametext>enif_cond_create(char *name)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1108,7 +1108,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_cond_destroy(ErlNifCond *cnd)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1118,7 +1118,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>char*</ret>
+      <name since="OTP 21.0"><ret>char*</ret>
         <nametext>enif_cond_name(ErlNifCond* cnd)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1128,7 +1128,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_cond_signal(ErlNifCond *cnd)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1138,7 +1138,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_cond_wait(ErlNifCond *cnd, ErlNifMutex *mtx)</nametext>
       </name>
       <fsummary></fsummary>
@@ -1149,7 +1149,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R16B"><ret>int</ret>
         <nametext>enif_consume_timeslice(ErlNifEnv *env, int percent)</nametext>
       </name>
       <fsummary></fsummary>
@@ -1184,7 +1184,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>ErlNifTime</ret><nametext>enif_convert_time_unit(ErlNifTime
+      <name since="OTP 18.3"><ret>ErlNifTime</ret><nametext>enif_convert_time_unit(ErlNifTime
         val, ErlNifTimeUnit from, ErlNifTimeUnit to)</nametext></name>
       <fsummary>Convert time unit of a time value.</fsummary>
       <desc>
@@ -1209,7 +1209,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP 19.0"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_cpu_time(ErlNifEnv *)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -1225,8 +1225,8 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_demonitor_process(ErlNifEnv* caller_env, void* obj,
-      const ErlNifMonitor* mon)</nametext></name>
+      <name since="OTP 20.0"><ret>int</ret><nametext>enif_demonitor_process(ErlNifEnv* caller_env,
+      void* obj, const ErlNifMonitor* mon)</nametext></name>
       <fsummary>Cancel a process monitor.</fsummary>
       <desc>
         <marker id="enif_demonitor_process"></marker>
@@ -1252,7 +1252,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_equal_tids(ErlNifTid tid1, ErlNifTid tid2)</nametext>
       </name>
       <fsummary></fsummary>
@@ -1263,7 +1263,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_fprintf(FILE *stream, const char *format, ...)</nametext></name>
+      <name since="OTP 21.0"><ret>int</ret><nametext>enif_fprintf(FILE *stream, const char *format, ...)</nametext></name>
       <fsummary>Format strings and Erlang terms.</fsummary>
       <desc>
         <p>Similar to <c>fprintf</c> but this format string also accepts
@@ -1276,7 +1276,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>enif_free(void* ptr)</nametext></name>
+      <name since=""><ret>void</ret><nametext>enif_free(void* ptr)</nametext></name>
       <fsummary>Free dynamic memory.</fsummary>
       <desc>
         <p>Frees memory allocated by
@@ -1285,7 +1285,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R14B"><ret>void</ret>
         <nametext>enif_free_env(ErlNifEnv* env)</nametext></name>
       <fsummary>Free an environment allocated with enif_alloc_env.</fsummary>
       <desc>
@@ -1296,7 +1296,7 @@ typedef struct {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP 20.1"><ret>void</ret>
         <nametext>enif_free_iovec(ErlNifIOvec* iov)</nametext></name>
       <fsummary>Free an ErlIOVec</fsummary>
       <desc>
@@ -1321,7 +1321,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_atom(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_atom(ErlNifEnv* env, ERL_NIF_TERM
         term, char* buf, unsigned size, ErlNifCharEncoding encode)</nametext>
       </name>
       <fsummary>Get the text representation of an atom term.</fsummary>
@@ -1337,7 +1337,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_atom_length(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_get_atom_length(ErlNifEnv* env,
         ERL_NIF_TERM term, unsigned* len, ErlNifCharEncoding encode)</nametext>
       </name>
       <fsummary>Get the length of atom <c>term</c>.</fsummary>
@@ -1351,7 +1351,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_double(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_double(ErlNifEnv* env,
         ERL_NIF_TERM term, double* dp)</nametext></name>
       <fsummary>Read a floating-point number term.</fsummary>
       <desc>
@@ -1362,7 +1362,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_int(ErlNifEnv* env, ERL_NIF_TERM
+      <name since=""><ret>int</ret><nametext>enif_get_int(ErlNifEnv* env, ERL_NIF_TERM
         term, int* ip)</nametext></name>
       <fsummary>Read an integer term.</fsummary>
       <desc>
@@ -1373,7 +1373,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_int64(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_get_int64(ErlNifEnv* env, ERL_NIF_TERM
         term, ErlNifSInt64* ip)</nametext></name>
       <fsummary>Read a 64-bit integer term.</fsummary>
       <desc>
@@ -1384,7 +1384,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_local_pid(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_get_local_pid(ErlNifEnv* env,
         ERL_NIF_TERM term, ErlNifPid* pid)</nametext></name>
       <fsummary>Read a local pid term.</fsummary>
       <desc>
@@ -1396,7 +1396,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_local_port(ErlNifEnv* env,
+      <name since="OTP 19.0"><ret>int</ret><nametext>enif_get_local_port(ErlNifEnv* env,
         ERL_NIF_TERM term, ErlNifPort* port_id)</nametext></name>
       <fsummary>Read a local port term.</fsummary>
       <desc>
@@ -1408,7 +1408,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_list_cell(ErlNifEnv* env,
+      <name since=""><ret>int</ret><nametext>enif_get_list_cell(ErlNifEnv* env,
         ERL_NIF_TERM list, ERL_NIF_TERM* head, ERL_NIF_TERM* tail)</nametext>
       </name>
       <fsummary>Get head and tail from a list.</fsummary>
@@ -1420,7 +1420,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_list_length(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_get_list_length(ErlNifEnv* env,
         ERL_NIF_TERM term, unsigned* len)</nametext></name>
       <fsummary>Get the length of list <c>term</c>.</fsummary>
       <desc>
@@ -1431,7 +1431,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_long(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_long(ErlNifEnv* env, ERL_NIF_TERM
         term, long int* ip)</nametext></name>
       <fsummary>Read a long integer term.</fsummary>
       <desc>
@@ -1442,7 +1442,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_map_size(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_get_map_size(ErlNifEnv* env,
         ERL_NIF_TERM term, size_t *size)</nametext></name>
       <fsummary>Read the size of a map term.</fsummary>
       <desc>
@@ -1454,7 +1454,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_map_value(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_get_map_value(ErlNifEnv* env,
         ERL_NIF_TERM map, ERL_NIF_TERM key, ERL_NIF_TERM* value)</nametext>
       </name>
       <fsummary>Get the value of a key in a map.</fsummary>
@@ -1467,7 +1467,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_resource(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_resource(ErlNifEnv* env,
         ERL_NIF_TERM term, ErlNifResourceType* type, void** objp)</nametext>
       </name>
       <fsummary>Get the pointer to a resource object.</fsummary>
@@ -1480,7 +1480,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_string(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_string(ErlNifEnv* env,
         ERL_NIF_TERM list, char* buf, unsigned size,
         ErlNifCharEncoding encode)</nametext></name>
       <fsummary>Get a C-string from a list.</fsummary>
@@ -1504,7 +1504,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_tuple(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_tuple(ErlNifEnv* env, ERL_NIF_TERM
         term, int* arity, const ERL_NIF_TERM** array)</nametext></name>
       <fsummary>Inspect the elements of a tuple.</fsummary>
       <desc>
@@ -1520,7 +1520,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_uint(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_get_uint(ErlNifEnv* env, ERL_NIF_TERM
         term, unsigned int* ip)</nametext></name>
       <fsummary>Read an unsigned integer term.</fsummary>
       <desc>
@@ -1532,7 +1532,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_uint64(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_get_uint64(ErlNifEnv* env,
         ERL_NIF_TERM term, ErlNifUInt64* ip)</nametext></name>
       <fsummary>Read an unsigned 64-bit integer term.</fsummary>
       <desc>
@@ -1544,7 +1544,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_get_ulong(ErlNifEnv* env, ERL_NIF_TERM
+      <name since=""><ret>int</ret><nametext>enif_get_ulong(ErlNifEnv* env, ERL_NIF_TERM
         term, unsigned long* ip)</nametext></name>
       <fsummary>Read an unsigned integer term.</fsummary>
       <desc>
@@ -1557,7 +1557,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_getenv(const char* key, char* value,
+      <name since="OTP 18.2"><ret>int</ret><nametext>enif_getenv(const char* key, char* value,
         size_t *value_size)</nametext></name>
       <fsummary>Get the value of an environment variable.</fsummary>
       <desc>
@@ -1567,7 +1567,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_has_pending_exception(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_has_pending_exception(ErlNifEnv* env,
         ERL_NIF_TERM* reason)</nametext></name>
       <fsummary>Check if an exception has been raised.</fsummary>
       <desc>
@@ -1588,7 +1588,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name>
+      <name since="OTP 20.0">
         <ret>ErlNifUInt64</ret>
         <nametext>enif_hash(ErlNifHash type, ERL_NIF_TERM term, ErlNifUInt64 salt)</nametext>
       </name>
@@ -1601,7 +1601,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_inspect_binary(ErlNifEnv* env,
+      <name since=""><ret>int</ret><nametext>enif_inspect_binary(ErlNifEnv* env,
         ERL_NIF_TERM bin_term, ErlNifBinary* bin)</nametext></name>
       <fsummary>Inspect the content of a binary.</fsummary>
       <desc>
@@ -1613,7 +1613,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_inspect_iolist_as_binary(ErlNifEnv*
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_inspect_iolist_as_binary(ErlNifEnv*
         env, ERL_NIF_TERM term, ErlNifBinary* bin)</nametext></name>
       <fsummary>Inspect the content of an iolist.</fsummary>
       <desc>
@@ -1627,7 +1627,7 @@ enif_free_iovec(iovec);]]></code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_inspect_iovec(ErlNifEnv*
+      <name since="OTP 20.1"><ret>int</ret><nametext>enif_inspect_iovec(ErlNifEnv*
         env, size_t max_elements, ERL_NIF_TERM iovec_term, ERL_NIF_TERM* tail,
         ErlNifIOVec** iovec)</nametext></name>
       <fsummary>Inspect a list of binaries as an ErlNifIOVec.</fsummary>
@@ -1667,7 +1667,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ErlNifIOQueue *</ret>
+      <name since="OTP 20.1"><ret>ErlNifIOQueue *</ret>
       <nametext>enif_ioq_create(ErlNifIOQueueOpts opts)</nametext></name>
       <fsummary>Create a new IO Queue</fsummary>
       <desc>
@@ -1678,7 +1678,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP 20.1"><ret>void</ret>
       <nametext>enif_ioq_destroy(ErlNifIOQueue *q)</nametext></name>
       <fsummary>Destroy an IO Queue and free it's content</fsummary>
       <desc>
@@ -1687,7 +1687,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.1"><ret>int</ret>
       <nametext>enif_ioq_deq(ErlNifIOQueue *q, size_t count, size_t *size)</nametext></name>
       <fsummary>Dequeue count bytes from the IO Queue</fsummary>
       <desc>
@@ -1700,7 +1700,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.1"><ret>int</ret>
       <nametext>enif_ioq_enq_binary(ErlNifIOQueue *q, ErlNifBinary *bin, size_t skip)</nametext></name>
       <fsummary>Enqueue the binary into the IO Queue</fsummary>
       <desc>
@@ -1713,7 +1713,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.1"><ret>int</ret>
       <nametext>enif_ioq_enqv(ErlNifIOQueue *q, ErlNifIOVec *iovec, size_t skip)</nametext></name>
       <fsummary>Enqueue the iovec into the IO Queue</fsummary>
       <desc>
@@ -1724,7 +1724,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>SysIOVec *</ret>
+      <name since="OTP 20.1"><ret>SysIOVec *</ret>
       <nametext>enif_ioq_peek(ErlNifIOQueue *q, int *iovlen)</nametext></name>
       <fsummary>Peek inside the IO Queue</fsummary>
       <desc>
@@ -1738,7 +1738,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 21.0"><ret>int</ret>
       <nametext>enif_ioq_peek_head(ErlNifEnv *env, ErlNifIOQueue *q, size_t *size, ERL_NIF_TERM *bin_term)</nametext></name>
       <fsummary>Peek the head of the IO Queue.</fsummary>
       <desc>
@@ -1753,7 +1753,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>size_t</ret>
+      <name since="OTP 20.1"><ret>size_t</ret>
       <nametext>enif_ioq_size(ErlNifIOQueue *q)</nametext></name>
       <fsummary>Get the current size of the IO Queue</fsummary>
       <desc>
@@ -1762,7 +1762,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_is_atom(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is an atom.</fsummary>
@@ -1772,7 +1772,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since=""><ret>int</ret>
         <nametext>enif_is_binary(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a binary.</fsummary>
@@ -1782,7 +1782,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 19.0"><ret>int</ret>
         <nametext>enif_is_current_process_alive(ErlNifEnv* env)</nametext>
       </name>
       <fsummary>Determine if currently executing process is alive.</fsummary>
@@ -1795,7 +1795,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_empty_list(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_is_empty_list(ErlNifEnv* env,
         ERL_NIF_TERM term)</nametext></name>
       <fsummary>Determine if a term is an empty list.</fsummary>
       <desc>
@@ -1804,7 +1804,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_exception(ErlNifEnv* env,
+      <name since="OTP R14B03"><ret>int</ret><nametext>enif_is_exception(ErlNifEnv* env,
         ERL_NIF_TERM term)</nametext></name>
       <fsummary>Determine if a term is an exception.</fsummary>
       <desc><marker id="enif_is_exception"/>
@@ -1813,7 +1813,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_fun(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_is_fun(ErlNifEnv* env, ERL_NIF_TERM
         term)</nametext></name>
       <fsummary>Determine if a term is a fun.</fsummary>
       <desc>
@@ -1822,7 +1822,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_identical(ERL_NIF_TERM lhs,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_is_identical(ERL_NIF_TERM lhs,
         ERL_NIF_TERM rhs)</nametext></name>
       <fsummary>Erlang operator =:=.</fsummary>
       <desc>
@@ -1832,7 +1832,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R14B"><ret>int</ret>
         <nametext>enif_is_list(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a list.</fsummary>
@@ -1842,7 +1842,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_map(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_is_map(ErlNifEnv* env, ERL_NIF_TERM
         term)</nametext></name>
       <fsummary>Determine if a term is a map.</fsummary>
       <desc>
@@ -1852,7 +1852,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_number(ErlNifEnv* env, ERL_NIF_TERM
+      <name since="OTP R15B"><ret>int</ret><nametext>enif_is_number(ErlNifEnv* env, ERL_NIF_TERM
         term)</nametext></name>
       <fsummary>Determine if a term is a number (integer or float).</fsummary>
       <desc>
@@ -1861,7 +1861,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_is_pid(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a pid.</fsummary>
@@ -1871,7 +1871,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_is_port(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a port.</fsummary>
@@ -1881,7 +1881,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_port_alive(ErlNifEnv* env,
+      <name since="OTP 19.0"><ret>int</ret><nametext>enif_is_port_alive(ErlNifEnv* env,
         ErlNifPort *port_id)</nametext></name>
       <fsummary>Determine if a local port is alive.</fsummary>
       <desc>
@@ -1893,7 +1893,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_is_process_alive(ErlNifEnv* env,
+      <name since="OTP 19.0"><ret>int</ret><nametext>enif_is_process_alive(ErlNifEnv* env,
         ErlNifPid *pid)</nametext></name>
       <fsummary>Determine if a local process is alive.</fsummary>
       <desc>
@@ -1905,7 +1905,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_is_ref(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a reference.</fsummary>
@@ -1915,7 +1915,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R14B"><ret>int</ret>
         <nametext>enif_is_tuple(ErlNifEnv* env, ERL_NIF_TERM term)</nametext>
       </name>
       <fsummary>Determine if a term is a tuple.</fsummary>
@@ -1925,7 +1925,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R14B"><ret>int</ret>
         <nametext>enif_keep_resource(void* obj)</nametext>
       </name>
       <fsummary>Add a reference to a resource object.</fsummary>
@@ -1941,7 +1941,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since=""><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_atom(ErlNifEnv* env, const char* name)</nametext>
       </name>
       <fsummary>Create an atom term.</fsummary>
@@ -1955,7 +1955,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_atom_len(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret><nametext>enif_make_atom_len(ErlNifEnv* env,
         const char* name, size_t len)</nametext></name>
       <fsummary>Create an atom term.</fsummary>
       <desc>
@@ -1969,7 +1969,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since=""><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_badarg(ErlNifEnv* env)</nametext></name>
       <fsummary>Make a badarg exception.</fsummary>
       <desc>
@@ -1997,7 +1997,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since=""><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_binary(ErlNifEnv* env, ErlNifBinary* bin)</nametext>
       </name>
       <fsummary>Make a binary term.</fsummary>
@@ -2010,7 +2010,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_copy(ErlNifEnv* dst_env,
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret><nametext>enif_make_copy(ErlNifEnv* dst_env,
         ERL_NIF_TERM src_term)</nametext></name>
       <fsummary>Make a copy of a term.</fsummary>
       <desc>
@@ -2021,7 +2021,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_double(ErlNifEnv* env, double d)</nametext></name>
       <fsummary>Create a floating-point term.</fsummary>
       <desc>
@@ -2033,7 +2033,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_make_existing_atom(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>int</ret><nametext>enif_make_existing_atom(ErlNifEnv* env,
         const char* name, ERL_NIF_TERM* atom, ErlNifCharEncoding
         encode)</nametext></name>
       <fsummary>Create an existing atom term.</fsummary>
@@ -2049,7 +2049,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_make_existing_atom_len(ErlNifEnv* env,
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_make_existing_atom_len(ErlNifEnv* env,
         const char* name, size_t len, ERL_NIF_TERM* atom, ErlNifCharEncoding
         encoding)</nametext></name>
       <fsummary>Create an existing atom term.</fsummary>
@@ -2065,7 +2065,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
       </desc>
     </func>
 
-    <func><name><ret>ERL_NIF_TERM</ret>
+    <func><name since=""><ret>ERL_NIF_TERM</ret>
       <nametext>enif_make_int(ErlNifEnv* env, int i)</nametext></name>
       <fsummary>Create an integer term.</fsummary>
       <desc>
@@ -2074,7 +2074,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_int64(ErlNifEnv* env, ErlNifSInt64 i)</nametext>
       </name>
       <fsummary>Create an integer term.</fsummary>
@@ -2084,7 +2084,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since=""><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_list(ErlNifEnv* env, unsigned cnt, ...)</nametext>
       </name>
       <fsummary>Create a list term.</fsummary>
@@ -2097,24 +2097,24 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_list1(ErlNifEnv* env, ERL_NIF_TERM e1)</nametext>
       </name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list2(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list2(ErlNifEnv* env,
         ERL_NIF_TERM e1, ERL_NIF_TERM e2)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list3(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list3(ErlNifEnv* env,
         ERL_NIF_TERM e1, ERL_NIF_TERM e2, ERL_NIF_TERM e3)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list4(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list4(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e4)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list5(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list5(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e5)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list6(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list6(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e6)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list7(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list7(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e7)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list8(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list8(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e8)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list9(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_list9(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e9)</nametext></name>
       <fsummary>Create a list term.</fsummary>
       <desc>
@@ -2126,7 +2126,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_list_cell(ErlNifEnv*
+      <name since=""><ret>ERL_NIF_TERM</ret><nametext>enif_make_list_cell(ErlNifEnv*
         env, ERL_NIF_TERM head, ERL_NIF_TERM tail)</nametext></name>
       <fsummary>Create a list cell.</fsummary>
       <desc>
@@ -2135,7 +2135,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_list_from_array(ErlNifEnv* env, const ERL_NIF_TERM
           arr[], unsigned cnt)</nametext></name>
       <fsummary>Create a list term from an array.</fsummary>
@@ -2147,7 +2147,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_long(ErlNifEnv* env, long int i)</nametext></name>
       <fsummary>Create an integer term from a long int.</fsummary>
       <desc>
@@ -2156,7 +2156,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_make_map_put(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_make_map_put(ErlNifEnv* env,
         ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM value,
         ERL_NIF_TERM* map_out)</nametext></name>
       <fsummary>Insert key-value pair in map.</fsummary>
@@ -2172,7 +2172,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_make_map_remove(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_make_map_remove(ErlNifEnv* env,
         ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM* map_out)</nametext>
       </name>
       <fsummary>Remove key from map.</fsummary>
@@ -2188,7 +2188,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_make_map_update(ErlNifEnv* env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_make_map_update(ErlNifEnv* env,
         ERL_NIF_TERM map_in, ERL_NIF_TERM key, ERL_NIF_TERM new_value,
         ERL_NIF_TERM* map_out)</nametext></name>
       <fsummary>Replace value for key in map.</fsummary>
@@ -2203,7 +2203,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 21.0"><ret>int</ret>
         <nametext>enif_make_map_from_arrays(ErlNifEnv* env, ERL_NIF_TERM keys[],
         ERL_NIF_TERM values[], size_t cnt, ERL_NIF_TERM *map_out)</nametext></name>
       <fsummary>Make map term from the given keys and values.</fsummary>
@@ -2217,7 +2217,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>unsigned char *</ret><nametext>enif_make_new_binary(ErlNifEnv*
+      <name since="OTP R14B"><ret>unsigned char *</ret><nametext>enif_make_new_binary(ErlNifEnv*
         env, size_t size, ERL_NIF_TERM* termp)</nametext></name>
       <fsummary>Allocate and create a new binary term.</fsummary>
       <desc>
@@ -2233,7 +2233,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP 18.0"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_new_map(ErlNifEnv* env)</nametext></name>
       <fsummary>Make an empty map term.</fsummary>
       <desc>
@@ -2242,7 +2242,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_pid(ErlNifEnv* env, const ErlNifPid* pid)</nametext>
       </name>
       <fsummary>Make a pid term.</fsummary>
@@ -2252,7 +2252,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_ref(ErlNifEnv* env)</nametext></name>
       <fsummary>Create a reference.</fsummary>
       <desc>
@@ -2262,7 +2262,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_resource(ErlNifEnv* env, void* obj)</nametext>
       </name>
       <fsummary>Create an opaque handle to a resource object.</fsummary>
@@ -2310,7 +2310,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_resource_binary(ErlNifEnv* env, void* obj, const
         void* data, size_t size)</nametext></name>
       <fsummary>Create a custom binary term.</fsummary>
@@ -2336,7 +2336,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R15B"><ret>int</ret>
         <nametext>enif_make_reverse_list(ErlNifEnv* env, ERL_NIF_TERM list_in,
         ERL_NIF_TERM *list_out)</nametext></name>
       <fsummary>Create the reverse of a list.</fsummary>
@@ -2352,7 +2352,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_string(ErlNifEnv* env,
+      <name since=""><ret>ERL_NIF_TERM</ret><nametext>enif_make_string(ErlNifEnv* env,
         const char* string, ErlNifCharEncoding encoding)</nametext></name>
       <fsummary>Create a string.</fsummary>
       <desc>
@@ -2363,7 +2363,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_string_len(ErlNifEnv*
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret><nametext>enif_make_string_len(ErlNifEnv*
         env, const char* string, size_t len, ErlNifCharEncoding
         encoding)</nametext></name>
       <fsummary>Create a string.</fsummary>
@@ -2376,7 +2376,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_sub_binary(ErlNifEnv*
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_sub_binary(ErlNifEnv*
         env, ERL_NIF_TERM bin_term, size_t pos, size_t size)</nametext></name>
       <fsummary>Make a subbinary term.</fsummary>
       <desc>
@@ -2388,7 +2388,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple(ErlNifEnv* env,
+      <name since=""><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple(ErlNifEnv* env,
         unsigned cnt, ...)</nametext></name>
       <fsummary>Creates a tuple term.</fsummary>
       <desc>
@@ -2399,23 +2399,23 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple1(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple1(ErlNifEnv* env,
         ERL_NIF_TERM e1)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple2(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple2(ErlNifEnv* env,
         ERL_NIF_TERM e1, ERL_NIF_TERM e2)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple3(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple3(ErlNifEnv* env,
         ERL_NIF_TERM e1, ERL_NIF_TERM e2, ERL_NIF_TERM e3)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple4(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple4(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e4)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple5(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple5(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e5)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple6(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple6(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e6)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple7(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple7(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e7)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple8(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple8(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e8)</nametext></name>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple9(ErlNifEnv* env,
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret><nametext>enif_make_tuple9(ErlNifEnv* env,
         ERL_NIF_TERM e1, ..., ERL_NIF_TERM e9)</nametext></name>
       <fsummary>Create a tuple term.</fsummary>
       <desc>
@@ -2427,7 +2427,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_tuple_from_array(ErlNifEnv* env, const ERL_NIF_TERM
         arr[], unsigned cnt)</nametext></name>
       <fsummary>Create a tuple term from an array.</fsummary>
@@ -2438,7 +2438,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R13B04"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_uint(ErlNifEnv* env, unsigned int i)</nametext>
       </name>
       <fsummary>Create an unsigned integer term.</fsummary>
@@ -2448,7 +2448,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP R14B"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_uint64(ErlNifEnv* env, ErlNifUInt64 i)</nametext>
       </name>
       <fsummary>Create an unsigned integer term.</fsummary>
@@ -2458,7 +2458,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since=""><ret>ERL_NIF_TERM</ret>
         <nametext>enif_make_ulong(ErlNifEnv* env, unsigned long i)</nametext>
       </name>
       <fsummary>Create an integer term from an unsigned long int.</fsummary>
@@ -2468,7 +2468,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_make_unique_integer(ErlNifEnv
+      <name since="OTP 19.0"><ret>ERL_NIF_TERM</ret><nametext>enif_make_unique_integer(ErlNifEnv
         *env, ErlNifUniqueInteger properties)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2486,7 +2486,7 @@ enif_inspect_iovec(env, max_elements, term, &amp;tail, &amp;iovec);
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_create(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_create(ErlNifEnv *env,
         ERL_NIF_TERM map, ErlNifMapIterator *iter, ErlNifMapIteratorEntry
         entry)</nametext></name>
       <fsummary>Create a map iterator.</fsummary>
@@ -2521,7 +2521,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>enif_map_iterator_destroy(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>void</ret><nametext>enif_map_iterator_destroy(ErlNifEnv *env,
         ErlNifMapIterator *iter)</nametext></name>
       <fsummary>Destroy a map iterator.</fsummary>
       <desc>
@@ -2532,7 +2532,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_get_pair(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_get_pair(ErlNifEnv *env,
         ErlNifMapIterator *iter, ERL_NIF_TERM *key, ERL_NIF_TERM
         *value)</nametext></name>
       <fsummary>Get key and value at current map iterator position.</fsummary>
@@ -2545,7 +2545,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_is_head(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_is_head(ErlNifEnv *env,
         ErlNifMapIterator *iter)</nametext></name>
       <fsummary>Check if map iterator is positioned before first.</fsummary>
       <desc>
@@ -2555,7 +2555,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_is_tail(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_is_tail(ErlNifEnv *env,
         ErlNifMapIterator *iter)</nametext></name>
       <fsummary>Check if map iterator is positioned after last.</fsummary>
       <desc>
@@ -2565,7 +2565,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_next(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_next(ErlNifEnv *env,
         ErlNifMapIterator *iter)</nametext></name>
       <fsummary>Increment map iterator to point to next entry.</fsummary>
       <desc>
@@ -2577,7 +2577,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_map_iterator_prev(ErlNifEnv *env,
+      <name since="OTP 18.0"><ret>int</ret><nametext>enif_map_iterator_prev(ErlNifEnv *env,
         ErlNifMapIterator *iter)</nametext></name>
       <fsummary>Decrement map iterator to point to previous entry.</fsummary>
       <desc>
@@ -2589,8 +2589,8 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_monitor_process(ErlNifEnv* caller_env, void* obj,
-      const ErlNifPid* target_pid, ErlNifMonitor* mon)</nametext></name>
+      <name since="OTP 20.0"><ret>int</ret><nametext>enif_monitor_process(ErlNifEnv* caller_env,
+      void* obj, const ErlNifPid* target_pid, ErlNifMonitor* mon)</nametext></name>
       <fsummary>Monitor a process from a resource.</fsummary>
       <desc>
         <marker id="enif_monitor_process"></marker>
@@ -2621,7 +2621,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ErlNifTime</ret>
+      <name since="OTP 18.3"><ret>ErlNifTime</ret>
         <nametext>enif_monotonic_time(ErlNifTimeUnit time_unit)</nametext>
       </name>
       <fsummary>Get Erlang monotonic time.</fsummary>
@@ -2642,7 +2642,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ErlNifMutex *</ret>
+      <name since="OTP R13B04"><ret>ErlNifMutex *</ret>
         <nametext>enif_mutex_create(char *name)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2652,7 +2652,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_mutex_destroy(ErlNifMutex *mtx)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2662,7 +2662,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_mutex_lock(ErlNifMutex *mtx)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2672,7 +2672,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>char*</ret>
+      <name since="OTP 21.0"><ret>char*</ret>
         <nametext>enif_mutex_name(ErlNifMutex* mtx)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2682,7 +2682,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
       <nametext>enif_mutex_trylock(ErlNifMutex *mtx)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2692,7 +2692,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_mutex_unlock(ErlNifMutex *mtx)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2702,7 +2702,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret>
+      <name since="OTP 19.0"><ret>ERL_NIF_TERM</ret>
         <nametext>enif_now_time(ErlNifEnv *env)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2713,7 +2713,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ErlNifResourceType *</ret>
+      <name since="OTP R13B04"><ret>ErlNifResourceType *</ret>
         <nametext>enif_open_resource_type(ErlNifEnv* env, const char*
         module_str, const char* name, ErlNifResourceDtor* dtor,
         ErlNifResourceFlags flags, ErlNifResourceFlags* tried)</nametext>
@@ -2752,7 +2752,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ErlNifResourceType *</ret>
+      <name since="OTP 20.0"><ret>ErlNifResourceType *</ret>
         <nametext>enif_open_resource_type_x(ErlNifEnv* env, const char* name,
 	const ErlNifResourceTypeInit* init,
         ErlNifResourceFlags flags, ErlNifResourceFlags* tried)</nametext>
@@ -2771,7 +2771,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-     <name><ret>int</ret><nametext>enif_port_command(ErlNifEnv* env, const
+     <name since="OTP 19.0"><ret>int</ret><nametext>enif_port_command(ErlNifEnv* env, const
        ErlNifPort* to_port, ErlNifEnv *msg_env, ERL_NIF_TERM msg)</nametext>
      </name>
      <fsummary>Send a port_command to to_port.</fsummary>
@@ -2814,7 +2814,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void *</ret>
+      <name since="OTP R13B04"><ret>void *</ret>
         <nametext>enif_priv_data(ErlNifEnv* env)</nametext></name>
       <fsummary>Get the private data of a NIF library.</fsummary>
       <desc>
@@ -2825,7 +2825,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_raise_exception(ErlNifEnv*
+      <name since="OTP 18.0"><ret>ERL_NIF_TERM</ret><nametext>enif_raise_exception(ErlNifEnv*
         env, ERL_NIF_TERM reason)</nametext></name>
       <fsummary>Raise a NIF error exception.</fsummary>
       <desc>
@@ -2848,7 +2848,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void *</ret>
+      <name since="OTP 20.2"><ret>void *</ret>
         <nametext>enif_realloc(void* ptr, size_t size)</nametext></name>
       <fsummary>Reallocate dynamic memory.</fsummary>
       <desc>
@@ -2862,7 +2862,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_realloc_binary(ErlNifBinary* bin, size_t size)</nametext>
       </name>
       <fsummary>Change the size of a binary.</fsummary>
@@ -2876,7 +2876,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since=""><ret>void</ret>
         <nametext>enif_release_binary(ErlNifBinary* bin)</nametext></name>
       <fsummary>Release a binary.</fsummary>
       <desc>
@@ -2887,7 +2887,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_release_resource(void* obj)</nametext></name>
       <fsummary>Release a resource object.</fsummary>
       <desc>
@@ -2906,7 +2906,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ErlNifRWLock *</ret>
+      <name since="OTP R13B04"><ret>ErlNifRWLock *</ret>
         <nametext>enif_rwlock_create(char *name)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2916,7 +2916,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_rwlock_destroy(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2926,7 +2926,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>char*</ret>
+      <name since="OTP 21.0"><ret>char*</ret>
         <nametext>enif_rwlock_name(ErlNifRWLock* rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2936,7 +2936,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_rwlock_rlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2946,7 +2946,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_rwlock_runlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2956,7 +2956,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_rwlock_rwlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2966,7 +2966,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_rwlock_rwunlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2976,7 +2976,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_rwlock_tryrlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2986,7 +2986,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_rwlock_tryrwlock(ErlNifRWLock *rwlck)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -2996,7 +2996,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>ERL_NIF_TERM</ret><nametext>enif_schedule_nif(ErlNifEnv* env,
+      <name since="OTP 17.3"><ret>ERL_NIF_TERM</ret><nametext>enif_schedule_nif(ErlNifEnv* env,
         const char* fun_name, int flags, ERL_NIF_TERM (*fp)(ErlNifEnv* env, int
         argc, const ERL_NIF_TERM argv[]), int argc, const ERL_NIF_TERM
         argv[])</nametext></name>
@@ -3041,7 +3041,7 @@ enif_map_iterator_destroy(env, &amp;iter);</code>
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.0"><ret>int</ret>
         <nametext>enif_select(ErlNifEnv* env, ErlNifEvent event, enum ErlNifSelectFlags mode,
 	void* obj, const ErlNifPid* pid, ERL_NIF_TERM ref)</nametext>
       </name>
@@ -3135,7 +3135,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>ErlNifPid *</ret>
+      <name since="OTP R14B"><ret>ErlNifPid *</ret>
         <nametext>enif_self(ErlNifEnv* caller_env, ErlNifPid* pid)</nametext>
       </name>
       <fsummary>Get the pid of the calling process.</fsummary>
@@ -3148,8 +3148,8 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_send(ErlNifEnv* caller_env, ErlNifPid* to_pid,
-        ErlNifEnv* msg_env, ERL_NIF_TERM msg)</nametext></name>
+      <name since="OTP R14B"><ret>int</ret><nametext>enif_send(ErlNifEnv* caller_env,
+      ErlNifPid* to_pid, ErlNifEnv* msg_env, ERL_NIF_TERM msg)</nametext></name>
       <fsummary>Send a message to a process.</fsummary>
       <desc>
         <p>Sends a message to a process.</p>
@@ -3195,7 +3195,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>unsigned</ret>
+      <name since="OTP R13B04"><ret>unsigned</ret>
         <nametext>enif_sizeof_resource(void* obj)</nametext></name>
       <fsummary>Get the byte size of a resource object.</fsummary>
       <desc>
@@ -3206,7 +3206,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_snprintf(char *str, size_t size, const
+      <name since="OTP 19.0"><ret>int</ret><nametext>enif_snprintf(char *str, size_t size, const
         char *format, ...)</nametext></name>
       <fsummary>Format strings and Erlang terms.</fsummary>
       <desc>
@@ -3220,7 +3220,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>void</ret><nametext>enif_system_info(ErlNifSysInfo
+      <name since="OTP R13B04"><ret>void</ret><nametext>enif_system_info(ErlNifSysInfo
         *sys_info_ptr, size_t size)</nametext></name>
       <fsummary>Get information about the Erlang runtime system.</fsummary>
       <desc>
@@ -3230,7 +3230,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret><nametext>enif_term_to_binary(ErlNifEnv *env,
+      <name since="OTP 19.0"><ret>int</ret><nametext>enif_term_to_binary(ErlNifEnv *env,
         ERL_NIF_TERM term, ErlNifBinary *bin)</nametext></name>
       <fsummary>Convert a term to the external format.</fsummary>
       <desc>
@@ -3247,7 +3247,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_thread_create(char *name,ErlNifTid
         *tid,void * (*func)(void *),void *args,ErlNifThreadOpts
         *opts)</nametext></name>
@@ -3259,7 +3259,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_thread_exit(void *resp)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3269,7 +3269,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_thread_join(ErlNifTid, void **respp)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3279,7 +3279,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>char*</ret>
+      <name since="OTP 21.0"><ret>char*</ret>
         <nametext>enif_thread_name(ErlNifTid tid)</nametext></name>
       <fsummary>Thread name</fsummary>
       <desc>
@@ -3289,7 +3289,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>ErlNifThreadOpts *</ret>
+      <name since="OTP R13B04"><ret>ErlNifThreadOpts *</ret>
         <nametext>enif_thread_opts_create(char *name)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3299,7 +3299,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_thread_opts_destroy(ErlNifThreadOpts *opts)</nametext>
       </name>
       <fsummary></fsummary>
@@ -3310,7 +3310,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>ErlNifTid</ret>
+      <name since="OTP R13B04"><ret>ErlNifTid</ret>
         <nametext>enif_thread_self(void)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3320,7 +3320,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 19.0"><ret>int</ret>
       <nametext>enif_thread_type(void)</nametext></name>
       <fsummary>Determine type of current thread</fsummary>
       <desc>
@@ -3342,7 +3342,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>ErlNifTime</ret>
+      <name since="OTP 18.3"><ret>ErlNifTime</ret>
         <nametext>enif_time_offset(ErlNifTimeUnit time_unit)</nametext></name>
       <fsummary>Get current time offset.</fsummary>
       <desc>
@@ -3364,7 +3364,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>void *</ret>
+      <name since="OTP R13B04"><ret>void *</ret>
         <nametext>enif_tsd_get(ErlNifTSDKey key)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3374,7 +3374,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP R13B04"><ret>int</ret>
         <nametext>enif_tsd_key_create(char *name, ErlNifTSDKey *key)</nametext>
       </name>
       <fsummary></fsummary>
@@ -3385,7 +3385,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
    </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_tsd_key_destroy(ErlNifTSDKey key)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3395,7 +3395,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>void</ret>
+      <name since="OTP R13B04"><ret>void</ret>
         <nametext>enif_tsd_set(ErlNifTSDKey key, void *data)</nametext></name>
       <fsummary></fsummary>
       <desc>
@@ -3405,7 +3405,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 21.0"><ret>int</ret>
       <nametext>enif_vfprintf(FILE *stream, const char *format, va_list ap)
       </nametext></name>
       <fsummary>Format strings and Erlang terms.</fsummary>
@@ -3417,7 +3417,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 21.0"><ret>int</ret>
       <nametext>enif_vsnprintf(char *str, size_t size, const char *format, va_list ap)
       </nametext></name>
       <fsummary>Format strings and Erlang terms.</fsummary>
@@ -3429,7 +3429,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.0"><ret>int</ret>
         <nametext>enif_whereis_pid(ErlNifEnv *env,
           ERL_NIF_TERM name, ErlNifPid *pid)</nametext></name>
       <fsummary>Looks up a process by its registered name.</fsummary>
@@ -3457,7 +3457,7 @@ if (retval &amp; ERL_NIF_SELECT_STOP_CALLED) {
     </func>
 
     <func>
-      <name><ret>int</ret>
+      <name since="OTP 20.0"><ret>int</ret>
         <nametext>enif_whereis_port(ErlNifEnv *env,
           ERL_NIF_TERM name, ErlNifPort *port)</nametext></name>
       <fsummary>Looks up a port by its registered name.</fsummary>
diff --git a/erts/doc/src/erl_prim_loader.xml b/erts/doc/src/erl_prim_loader.xml
index 286bac6c93..043d11b7b4 100644
--- a/erts/doc/src/erl_prim_loader.xml
+++ b/erts/doc/src/erl_prim_loader.xml
@@ -29,7 +29,7 @@
     <rev></rev>
     <file>erl_prim_loader.xml</file>
   </header>
-  <module>erl_prim_loader</module>
+  <module since="">erl_prim_loader</module>
   <modulesummary>Low-level Erlang loader.</modulesummary>
   <description>
     <p>This module is used to load all Erlang modules into
@@ -47,7 +47,7 @@
 
   <funcs>
     <func>
-      <name name="get_file" arity="1"/>
+      <name name="get_file" arity="1" since=""/>
       <fsummary>Get a file.</fsummary>
       <desc>
         <p>Fetches a file using the low-level loader.
@@ -65,7 +65,7 @@
     </func>
 
     <func>
-      <name name="get_path" arity="0"/>
+      <name name="get_path" arity="0" since=""/>
       <fsummary>Get the path set in the loader.</fsummary>
       <desc>
         <p>Gets the path set in the loader. The path is
@@ -75,7 +75,7 @@
     </func>
 
     <func>
-      <name name="list_dir" arity="1"/>
+      <name name="list_dir" arity="1" since=""/>
       <fsummary>List files in a directory.</fsummary>
       <desc>
         <p>Lists all the files in a directory. Returns
@@ -92,7 +92,7 @@
     </func>
 
     <func>
-      <name name="read_file_info" arity="1"/>
+      <name name="read_file_info" arity="1" since=""/>
       <fsummary>Get information about a file.</fsummary>
       <desc>
         <p>Retrieves information about a file. Returns
@@ -114,7 +114,7 @@
     </func>
 
     <func>
-      <name name="read_link_info" arity="1"/>
+      <name name="read_link_info" arity="1" since="OTP 17.1.2"/>
       <fsummary>Get information about a link or file.</fsummary>
       <desc>
         <p>Works like
@@ -131,7 +131,7 @@
     </func>
 
     <func>
-      <name name="set_path" arity="1"/>
+      <name name="set_path" arity="1" since=""/>
       <fsummary>Set the path of the loader.</fsummary>
       <desc>
         <p>Sets the path of the loader if
diff --git a/erts/doc/src/erl_tracer.xml b/erts/doc/src/erl_tracer.xml
index fd3c17f337..fa4717bc2f 100644
--- a/erts/doc/src/erl_tracer.xml
+++ b/erts/doc/src/erl_tracer.xml
@@ -28,7 +28,7 @@
     <date></date>
     <rev></rev>
   </header>
-  <module>erl_tracer</module>
+  <module since="OTP 19.0">erl_tracer</module>
   <modulesummary>Erlang tracer behavior.</modulesummary>
   <description>
     <p>This behavior module implements the back end of the Erlang
@@ -195,7 +195,7 @@
 
   <funcs>
     <func>
-      <name>Module:enabled(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag">
@@ -224,7 +224,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_call(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled_call(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag_call">
@@ -244,7 +244,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_garbage_collection(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled_garbage_collection(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag_gc">
@@ -264,7 +264,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_ports(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled_ports(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag_ports">
@@ -284,7 +284,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_procs(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled_procs(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag_procs">
@@ -304,7 +304,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_receive(TraceTag, TracerState, Tracee) -> Result
+      <name since="OTP 19.0">Module:enabled_receive(TraceTag, TracerState, Tracee) -> Result
       </name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -325,7 +325,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_running_ports(TraceTag, TracerState, Tracee) ->
+      <name since="OTP 19.0">Module:enabled_running_ports(TraceTag, TracerState, Tracee) ->
         Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -346,7 +346,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_running_procs(TraceTag, TracerState, Tracee) ->
+      <name since="OTP 19.0">Module:enabled_running_procs(TraceTag, TracerState, Tracee) ->
         Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -368,7 +368,7 @@
     </func>
 
     <func>
-      <name>Module:enabled_send(TraceTag, TracerState, Tracee) -> Result</name>
+      <name since="OTP 19.0">Module:enabled_send(TraceTag, TracerState, Tracee) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
         <v>TraceTag = <seealso marker="#type-trace_tag_send">
@@ -388,7 +388,7 @@
     </func>
 
     <func>
-      <name>Module:trace(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace(TraceTag, TracerState, Tracee, TraceTerm,
         Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -417,7 +417,7 @@
     </func>
 
     <func>
-      <name name="trace">Module:trace(seq_trace, TracerState, Label,
+      <name name="trace" since="OTP 19.0">Module:trace(seq_trace, TracerState, Label,
         SeqTraceInfo, Opts) -> Result</name>
       <fsummary>Check if a sequence trace event is to be generated.</fsummary>
       <type>
@@ -439,7 +439,7 @@
     </func>
 
     <func>
-      <name>Module:trace_call(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace_call(TraceTag, TracerState, Tracee, TraceTerm,
           Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -463,7 +463,7 @@
     </func>
 
     <func>
-      <name>Module:trace_garbage_collection(TraceTag, TracerState, Tracee,
+      <name since="OTP 19.0">Module:trace_garbage_collection(TraceTag, TracerState, Tracee,
         TraceTerm, Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -487,7 +487,7 @@
     </func>
 
     <func>
-      <name>Module:trace_ports(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace_ports(TraceTag, TracerState, Tracee, TraceTerm,
         Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -511,7 +511,7 @@
     </func>
 
     <func>
-      <name>Module:trace_procs(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace_procs(TraceTag, TracerState, Tracee, TraceTerm,
         Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -535,7 +535,7 @@
     </func>
 
     <func>
-      <name>Module:trace_receive(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace_receive(TraceTag, TracerState, Tracee, TraceTerm,
         Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -559,7 +559,7 @@
     </func>
 
     <func>
-      <name>Module:trace_running_ports(TraceTag, TracerState, Tracee,
+      <name since="OTP 19.0">Module:trace_running_ports(TraceTag, TracerState, Tracee,
         TraceTerm, Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -583,7 +583,7 @@
     </func>
 
     <func>
-      <name>Module:trace_running_procs(TraceTag, TracerState, Tracee,
+      <name since="OTP 19.0">Module:trace_running_procs(TraceTag, TracerState, Tracee,
         TraceTerm, Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
@@ -607,7 +607,7 @@
     </func>
 
     <func>
-      <name>Module:trace_send(TraceTag, TracerState, Tracee, TraceTerm,
+      <name since="OTP 19.0">Module:trace_send(TraceTag, TracerState, Tracee, TraceTerm,
         Opts) -> Result</name>
       <fsummary>Check if a trace event is to be generated.</fsummary>
       <type>
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 8e014c3010..a42323b13d 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -29,7 +29,7 @@
     <rev></rev>
     <file>erlang.xml</file>
   </header>
-  <module>erlang</module>
+  <module since="">erlang</module>
   <modulesummary>The Erlang BIFs.</modulesummary>
   <description>
     <p>By convention, most Built-In Functions (BIFs) are included
@@ -210,8 +210,8 @@
 
   <funcs>
     <func>
-      <name name="abs" arity="1" clause_i="1"/>
-      <name name="abs" arity="1" clause_i="2"/>
+      <name name="abs" arity="1" clause_i="1" since=""/>
+      <name name="abs" arity="1" clause_i="2" since=""/>
       <fsummary>Arithmetical absolute value.</fsummary>
       <desc>
         <p>Returns an integer or float that is the arithmetical
@@ -227,7 +227,7 @@
     </func>
 
     <func>
-      <name name="adler32" arity="1"/>
+      <name name="adler32" arity="1" since=""/>
       <fsummary>Compute adler32 checksum.</fsummary>
       <desc>
         <p>Computes and returns the adler32 checksum for
@@ -236,7 +236,7 @@
     </func>
 
     <func>
-      <name name="adler32" arity="2"/>
+      <name name="adler32" arity="2" since=""/>
       <fsummary>Compute adler32 checksum.</fsummary>
       <desc>
         <p>Continues computing the adler32 checksum by combining 
@@ -253,7 +253,7 @@ Y = erlang:adler32([Data1,Data2]).</code>
     </func>
 
     <func>
-      <name name="adler32_combine" arity="3"/>
+      <name name="adler32_combine" arity="3" since=""/>
       <fsummary>Combine two adler32 checksums.</fsummary>
       <desc>
         <p>Combines two previously computed adler32 checksums.
@@ -272,7 +272,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="append_element" arity="2"/>
+      <name name="append_element" arity="2" since=""/>
       <fsummary>Append an extra element to a tuple.</fsummary>
       <desc>
         <p>Returns a new tuple that has one element more than
@@ -289,7 +289,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="apply" arity="2"/>
+      <name name="apply" arity="2" since=""/>
       <fsummary>Apply a function to an argument list.</fsummary>
       <desc>
         <p>Calls a fun, passing the elements in <c><anno>Args</anno></c>
@@ -307,7 +307,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="apply" arity="3"/>
+      <name name="apply" arity="3" since=""/>
       <fsummary>Apply a function to an argument list.</fsummary>
       <desc>
         <p>Returns the result of applying <c>Function</c> in
@@ -337,7 +337,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="atom_to_binary" arity="2"/>
+      <name name="atom_to_binary" arity="2" since=""/>
       <fsummary>Return the binary representation of an atom.</fsummary>
       <desc>
         <p>Returns a binary corresponding to the text
@@ -362,7 +362,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="atom_to_list" arity="1"/>
+      <name name="atom_to_list" arity="1" since=""/>
       <fsummary>Text representation of an atom.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -374,7 +374,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_part" arity="2"/>
+      <name name="binary_part" arity="2" since="OTP R14B"/>
       <fsummary>Extract a part of a binary.</fsummary>
       <desc>
       <p>Extracts the part of the binary described by
@@ -399,7 +399,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_part" arity="3"/>
+      <name name="binary_part" arity="3" since="OTP R14B"/>
       <fsummary>Extract a part of a binary.</fsummary>
       <desc>
       <p>The same as <c>binary_part(<anno>Subject</anno>,
@@ -409,7 +409,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_atom" arity="2"/>
+      <name name="binary_to_atom" arity="2" since=""/>
       <fsummary>Convert from text representation to an atom.</fsummary>
       <desc>
         <p>Returns the atom whose text representation is
@@ -438,7 +438,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_existing_atom" arity="2"/>
+      <name name="binary_to_existing_atom" arity="2" since=""/>
       <fsummary>Convert from text representation to an atom.</fsummary>
       <desc>
         <p>As
@@ -459,7 +459,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_float" arity="1"/>
+      <name name="binary_to_float" arity="1" since="OTP R16B"/>
       <fsummary>Convert from text representation to a float.</fsummary>
       <desc>
         <p>Returns the float whose text representation is
@@ -473,7 +473,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_integer" arity="1"/>
+      <name name="binary_to_integer" arity="1" since="OTP R16B"/>
       <fsummary>Convert from text representation to an integer.</fsummary>
       <desc>
         <p>Returns an integer whose text representation is
@@ -487,7 +487,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_integer" arity="2"/>
+      <name name="binary_to_integer" arity="2" since="OTP R16B"/>
       <fsummary>Convert from text representation to an integer.</fsummary>
       <desc>
         <p>Returns an integer whose text representation in base
@@ -502,7 +502,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_list" arity="1"/>
+      <name name="binary_to_list" arity="1" since=""/>
       <fsummary>Convert a binary to a list.</fsummary>
       <desc>
         <p>Returns a list of integers corresponding to the bytes of
@@ -511,7 +511,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_list" arity="3"/>
+      <name name="binary_to_list" arity="3" since=""/>
       <fsummary>Convert part of a binary to a list.</fsummary>
       <type_desc variable="Start">1..byte_size(<c><anno>Binary</anno></c>)
       </type_desc>
@@ -533,7 +533,7 @@ Z = erlang:adler32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="binary_to_term" arity="1"/>
+      <name name="binary_to_term" arity="1" since=""/>
       <fsummary>Decode an Erlang external term format binary.</fsummary>
       <desc>
         <p>Returns an Erlang term that is the result of decoding
@@ -559,7 +559,7 @@ hello
     </func>
 
     <func>
-      <name name="binary_to_term" arity="2"/>
+      <name name="binary_to_term" arity="2" since="OTP R13B04"/>
       <fsummary>Decode an Erlang external term format binary.</fsummary>
       <desc>
         <p>As <c>binary_to_term/1</c>, but takes these options:</p>
@@ -613,7 +613,7 @@ hello
     </func>
 
     <func>
-      <name name="bit_size" arity="1"/>
+      <name name="bit_size" arity="1" since=""/>
       <fsummary>Return the size of a bitstring.</fsummary>
       <desc>
         <p>Returns an integer that is the size in bits of
@@ -628,7 +628,7 @@ hello
     </func>
 
     <func>
-      <name name="bitstring_to_list" arity="1"/>
+      <name name="bitstring_to_list" arity="1" since=""/>
       <fsummary>Convert a bitstring to a list.</fsummary>
       <desc>
         <p>Returns a list of integers corresponding to the bytes of
@@ -639,7 +639,7 @@ hello
     </func>
 
     <func>
-      <name name="bump_reductions" arity="1"/>
+      <name name="bump_reductions" arity="1" since=""/>
       <fsummary>Increment the reduction counter.</fsummary>
       <desc>
         <p>This implementation-dependent function increments
@@ -657,7 +657,7 @@ hello
     </func>
 
     <func>
-      <name name="byte_size" arity="1"/>
+      <name name="byte_size" arity="1" since=""/>
       <fsummary>Return the size of a bitstring (or binary).</fsummary>
       <desc>
         <p>Returns an integer that is the number of bytes needed to
@@ -674,7 +674,7 @@ hello
     </func>
 
     <func>
-      <name name="cancel_timer" arity="1"/>
+      <name name="cancel_timer" arity="1" since=""/>
       <fsummary>Cancel a timer.</fsummary>
       <desc>
         <p>Cancels a timer. The same as calling
@@ -684,7 +684,7 @@ hello
     </func>
 
     <func>
-      <name name="cancel_timer" arity="2"/>
+      <name name="cancel_timer" arity="2" since="OTP 18.0"/>
       <fsummary>Cancel a timer.</fsummary>
       <desc>
         <p>Cancels a timer that has been created by
@@ -766,7 +766,7 @@ hello
     </func>
 
     <func>
-      <name name="ceil" arity="1"/>
+      <name name="ceil" arity="1" since="OTP 20.0"/>
       <fsummary>Returns the smallest integer not less than the argument</fsummary>
       <desc>
         <p>Returns the smallest integer not less than
@@ -779,7 +779,7 @@ hello
       </desc>
     </func>
     <func>
-      <name name="check_old_code" arity="1"/>
+      <name name="check_old_code" arity="1" since="OTP R14B04"/>
       <fsummary>Check if a module has old code.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Module</anno></c> has old code,
@@ -790,7 +790,7 @@ hello
     </func>
 
     <func>
-      <name name="check_process_code" arity="2"/>
+      <name name="check_process_code" arity="2" since=""/>
       <fsummary>Check if a process executes old code for a module.</fsummary>
       <desc>
         <p>The same as
@@ -801,7 +801,7 @@ hello
     </func>
 
     <func>
-      <name name="check_process_code" arity="3"/>
+      <name name="check_process_code" arity="3" since="OTP 17.0"/>
       <fsummary>Check if a process executes old code for a module.</fsummary>
       <desc>
         <p>Checks if the node local process identified by
@@ -904,7 +904,7 @@ hello
     </func>
 
     <func>
-      <name name="convert_time_unit" arity="3"/>
+      <name name="convert_time_unit" arity="3" since="OTP 18.0"/>
       <fsummary>Convert time unit of a time value.</fsummary>
       <desc>
         <p>Converts the <c><anno>Time</anno></c> value of time unit
@@ -922,7 +922,7 @@ hello
     </func>
 
     <func>
-      <name name="crc32" arity="1"/>
+      <name name="crc32" arity="1" since=""/>
       <fsummary>Compute crc32 (IEEE 802.3) checksum.</fsummary>
       <desc>
         <p>Computes and returns the crc32 (IEEE 802.3 style) checksum
@@ -931,7 +931,7 @@ hello
     </func>
 
     <func>
-      <name name="crc32" arity="2"/>
+      <name name="crc32" arity="2" since=""/>
       <fsummary>Compute crc32 (IEEE 802.3) checksum.</fsummary>
       <desc>
         <p>Continues computing the crc32 checksum by combining
@@ -948,7 +948,7 @@ Y = erlang:crc32([Data1,Data2]).</code>
     </func>
 
     <func>
-      <name name="crc32_combine" arity="3"/>
+      <name name="crc32_combine" arity="3" since=""/>
       <fsummary>Combine two crc32 (IEEE 802.3) checksums.</fsummary>
       <desc>
         <p>Combines two previously computed crc32 checksums.
@@ -967,7 +967,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="date" arity="0"/>
+      <name name="date" arity="0" since=""/>
       <fsummary>Current date.</fsummary>
       <desc>
         <p>Returns the current date as <c>{Year, Month, Day}</c>.</p>
@@ -980,7 +980,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="decode_packet" arity="3"/>
+      <name name="decode_packet" arity="3" since=""/>
       <fsummary>Extract a protocol packet from a binary.</fsummary>
       <desc>
         <p>Decodes the binary <c><anno>Bin</anno></c> according to the packet
@@ -1090,7 +1090,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="delete_element" arity="2"/>
+      <name name="delete_element" arity="2" since="OTP R16B"/>
       <fsummary>Delete element at index in a tuple.</fsummary>
       <type_desc variable="Index">1..tuple_size(<anno>Tuple1</anno>)</type_desc>
       <desc>
@@ -1103,7 +1103,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="delete_module" arity="1"/>
+      <name name="delete_module" arity="1" since=""/>
       <fsummary>Make the current code for a module old.</fsummary>
       <desc>
         <p>Makes the current code for <c><anno>Module</anno></c> become old
@@ -1121,7 +1121,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="demonitor" arity="1"/>
+      <name name="demonitor" arity="1" since=""/>
       <fsummary>Stop monitoring.</fsummary>
       <desc>
         <p>If <c><anno>MonitorRef</anno></c> is a reference that the
@@ -1163,7 +1163,7 @@ Z = erlang:crc32_combine(X,Y,iolist_size(Data2)).</code>
     </func>
 
     <func>
-      <name name="demonitor" arity="2"/>
+      <name name="demonitor" arity="2" since=""/>
       <fsummary>Stop monitoring.</fsummary>
       <desc>
         <p>The returned value is <c>true</c> unless <c>info</c> is part
@@ -1231,7 +1231,7 @@ end</code>
     </func>
 
     <func>
-      <name name="disconnect_node" arity="1"/>
+      <name name="disconnect_node" arity="1" since=""/>
       <fsummary>Force the disconnection of a node.</fsummary>
       <desc>
         <p>Forces the disconnection of a node. This appears to
@@ -1245,7 +1245,7 @@ end</code>
     </func>
 
     <func>
-      <name name="display" arity="1"/>
+      <name name="display" arity="1" since=""/>
       <fsummary>Print a term on standard output.</fsummary>
       <desc>
         <p>Prints a text representation of <c><anno>Term</anno></c> on the
@@ -1257,7 +1257,7 @@ end</code>
     </func>
 
     <func>
-      <name name="dist_ctrl_get_data" arity="1"/>
+      <name name="dist_ctrl_get_data" arity="1" since="OTP 21.0"/>
       <fsummary>Get distribution channel data to pass to another node.</fsummary>
       <desc>
         <p>
@@ -1290,7 +1290,7 @@ end</code>
     </func>
 
     <func>
-      <name name="dist_ctrl_get_data_notification" arity="1"/>
+      <name name="dist_ctrl_get_data_notification" arity="1" since="OTP 21.0"/>
       <fsummary>Request notification about available outgoing distribution channel data.</fsummary>
       <desc>
         <p>
@@ -1326,7 +1326,7 @@ end</code>
     </func>
 
     <func>
-      <name name="dist_ctrl_input_handler" arity="2"/>
+      <name name="dist_ctrl_input_handler" arity="2" since="OTP 21.0"/>
       <fsummary>Register distribution channel input handler process.</fsummary>
       <desc>
         <p>
@@ -1359,7 +1359,7 @@ end</code>
     </func>
 
     <func>
-      <name name="dist_ctrl_put_data" arity="2"/>
+      <name name="dist_ctrl_put_data" arity="2" since="OTP 21.0"/>
       <fsummary>Pass data into the VM from a distribution channel.</fsummary>
       <desc>
         <p>
@@ -1392,7 +1392,7 @@ end</code>
     </func>
 
     <func>
-      <name name="element" arity="2"/>
+      <name name="element" arity="2" since=""/>
       <fsummary>Return the Nth element of a tuple.</fsummary>
       <type_desc variable="N">1..tuple_size(<anno>Tuple</anno>)</type_desc>
       <desc>
@@ -1406,7 +1406,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="erase" arity="0"/>
+      <name name="erase" arity="0" since=""/>
       <fsummary>Return and delete the process dictionary.</fsummary>
       <desc>
         <p>Returns the process dictionary and deletes it, for
@@ -1420,7 +1420,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="erase" arity="1"/>
+      <name name="erase" arity="1" since=""/>
       <fsummary>Return and delete a value from the process dictionary.
       </fsummary>
       <desc>
@@ -1437,7 +1437,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="error" arity="1"/>
+      <name name="error" arity="1" since=""/>
       <fsummary>Stop execution with a specified reason.</fsummary>
       <desc>
         <p>Stops the execution of the calling process with the reason
@@ -1461,7 +1461,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="error" arity="2"/>
+      <name name="error" arity="2" since=""/>
       <fsummary>Stop execution with a specified reason.</fsummary>
       <desc>
         <p>Stops the execution of the calling process with the reason
@@ -1478,7 +1478,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="exit" arity="1"/>
+      <name name="exit" arity="1" since=""/>
       <fsummary>Stop execution with a specified reason.</fsummary>
       <desc>
         <p>Stops the execution of the calling process with exit reason
@@ -1495,7 +1495,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="exit" arity="2"/>
+      <name name="exit" arity="2" since=""/>
       <fsummary>Send an exit signal to a process or a port.</fsummary>
       <desc>
         <p>Sends an exit signal with exit reason <c><anno>Reason</anno></c> to
@@ -1531,7 +1531,7 @@ b</pre>
     </func>
 
     <func>
-      <name name="external_size" arity="1"/>
+      <name name="external_size" arity="1" since="OTP R14B04"/>
       <fsummary>Calculate the maximum size for a term encoded in the Erlang
         external term format.</fsummary>
       <desc>
@@ -1550,7 +1550,7 @@ erlang:external_size(<anno>Term</anno>, [])</code>
     </func>
 
     <func>
-      <name name="external_size" arity="2"/>
+      <name name="external_size" arity="2" since="OTP R14B04"/>
       <fsummary>Calculate the maximum size for a term encoded in the Erlang
         external term format.</fsummary>
       <desc>
@@ -1570,7 +1570,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="float" arity="1"/>
+      <name name="float" arity="1" since=""/>
       <fsummary>Convert a number to a float.</fsummary>
       <desc>
         <p>Returns a float by converting <c><anno>Number</anno></c> to a float,
@@ -1592,7 +1592,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="float_to_binary" arity="1"/>
+      <name name="float_to_binary" arity="1" since="OTP R16B"/>
       <fsummary>Text representation of a float.</fsummary>
       <desc>
         <p>The same as
@@ -1601,7 +1601,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="float_to_binary" arity="2"/>
+      <name name="float_to_binary" arity="2" since="OTP R16B"/>
       <fsummary>Text representation of a float formatted using specified
         options.</fsummary>
       <desc>
@@ -1619,7 +1619,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="float_to_list" arity="1"/>
+      <name name="float_to_list" arity="1" since=""/>
       <fsummary>Text representation of a float.</fsummary>
       <desc>
         <p>The same as
@@ -1628,7 +1628,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="float_to_list" arity="2"/>
+      <name name="float_to_list" arity="2" since="OTP R16B"/>
       <fsummary>Text representation of a float formatted using specified
         options.</fsummary>
       <desc>
@@ -1664,7 +1664,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="floor" arity="1"/>
+      <name name="floor" arity="1" since="OTP 20.0"/>
       <fsummary>Returns the largest integer not greater than the argument</fsummary>
       <desc>
         <p>Returns the largest integer not greater than
@@ -1678,7 +1678,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="fun_info" arity="1"/>
+      <name name="fun_info" arity="1" since=""/>
       <fsummary>Information about a fun.</fsummary>
       <desc>
         <p>Returns a list with information about the fun
@@ -1779,7 +1779,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="fun_info" arity="2"/>
+      <name name="fun_info" arity="2" since=""/>
       <fsummary>Information about a fun.</fsummary>
       <type name="fun_info_item"/>
       <desc>
@@ -1799,7 +1799,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="fun_to_list" arity="1"/>
+      <name name="fun_to_list" arity="1" since=""/>
       <fsummary>Text representation of a fun.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -1808,7 +1808,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="function_exported" arity="3"/>
+      <name name="function_exported" arity="3" since=""/>
       <fsummary>Check if a function is exported and loaded.</fsummary>
       <desc>
         <p>Returns <c>true</c> if the module <c><anno>Module</anno></c> is
@@ -1824,7 +1824,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="garbage_collect" arity="0"/>
+      <name name="garbage_collect" arity="0" since=""/>
       <fsummary>Force an immediate garbage collection of the calling process.
       </fsummary>
       <desc>
@@ -1840,7 +1840,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="garbage_collect" arity="1"/>
+      <name name="garbage_collect" arity="1" since=""/>
       <fsummary>Garbage collect a process.</fsummary>
       <desc>
         <p>The same as
@@ -1850,7 +1850,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="garbage_collect" arity="2"/>
+      <name name="garbage_collect" arity="2" since="OTP 17.0"/>
       <fsummary>Garbage collect a process.</fsummary>
       <desc>
         <p>Garbage collects the node local process identified by
@@ -1915,7 +1915,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get" arity="0"/>
+      <name name="get" arity="0" since=""/>
       <fsummary>Return the process dictionary.</fsummary>
       <desc>
         <p>Returns the process dictionary as a list of
@@ -1930,7 +1930,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get" arity="1"/>
+      <name name="get" arity="1" since=""/>
       <fsummary>Return a value from the process dictionary.</fsummary>
       <desc>
         <p>Returns the value <c><anno>Val</anno></c> associated with
@@ -1946,7 +1946,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get_cookie" arity="0"/>
+      <name name="get_cookie" arity="0" since=""/>
       <fsummary>Get the magic cookie of the local node.</fsummary>
       <desc>
         <p>Returns the magic cookie of the local node if the node is
@@ -1955,7 +1955,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get_keys" arity="0"/>
+      <name name="get_keys" arity="0" since="OTP 18.0"/>
       <fsummary>Return a list of all keys from the process dictionary.
       </fsummary>
       <desc>
@@ -1971,7 +1971,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get_keys" arity="1"/>
+      <name name="get_keys" arity="1" since=""/>
       <fsummary>Return a list of keys from the process dictionary.</fsummary>
       <desc>
         <p>Returns a list of keys that are associated with the value
@@ -1989,7 +1989,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="get_stacktrace" arity="0"/>
+      <name name="get_stacktrace" arity="0" since=""/>
       <fsummary>Get the call stack back-trace of the last exception.</fsummary>
       <type name="stack_item"/>
       <desc>
@@ -2054,7 +2054,7 @@ end</pre>
     </func>
 
     <func>
-      <name name="group_leader" arity="0"/>
+      <name name="group_leader" arity="0" since=""/>
       <fsummary>Get the group leader for the calling process.</fsummary>
       <desc>
         <p>Returns the process identifier of the group leader for the
@@ -2069,7 +2069,7 @@ end</pre>
     </func>
 
     <func>
-      <name name="group_leader" arity="2"/>
+      <name name="group_leader" arity="2" since=""/>
       <fsummary>Set the group leader for a process.</fsummary>
       <desc>
         <p>Sets the group leader of <c><anno>Pid</anno></c>
@@ -2090,7 +2090,7 @@ end</pre>
     </func>
 
     <func>
-      <name name="halt" arity="0"/>
+      <name name="halt" arity="0" since=""/>
       <fsummary>Halt the Erlang runtime system and indicate normal exit to
         the calling environment.</fsummary>
       <desc>
@@ -2103,7 +2103,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="halt" arity="1"/>
+      <name name="halt" arity="1" since=""/>
       <fsummary>Halt the Erlang runtime system.</fsummary>
       <desc>
         <p>The same as <seealso marker="#halt/2">
@@ -2117,7 +2117,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="halt" arity="2"/>
+      <name name="halt" arity="2" since="OTP R15B01"/>
       <fsummary>Halt the Erlang runtime system.</fsummary>
       <desc>
         <p><c><anno>Status</anno></c> must be a non-negative integer, a string,
@@ -2159,7 +2159,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="hd" arity="1"/>
+      <name name="hd" arity="1" since=""/>
       <fsummary>Head of a list.</fsummary>
       <desc>
         <p>Returns the head of <c><anno>List</anno></c>, that is,
@@ -2174,7 +2174,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="hibernate" arity="3"/>
+      <name name="hibernate" arity="3" since=""/>
       <fsummary>Hibernate a process until a message is sent to it.</fsummary>
       <desc>
         <p>Puts the calling process into a wait state where its memory
@@ -2215,7 +2215,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="insert_element" arity="3"/>
+      <name name="insert_element" arity="3" since="OTP R16B"/>
       <fsummary>Insert an element at index in a tuple.</fsummary>
       <type_desc variable="Index">1..tuple_size(<anno>Tuple1</anno>)
         + 1</type_desc>
@@ -2233,7 +2233,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="integer_to_binary" arity="1"/>
+      <name name="integer_to_binary" arity="1" since="OTP R16B"/>
       <fsummary>Text representation of an integer.</fsummary>
       <desc>
         <p>Returns a binary corresponding to the text
@@ -2245,7 +2245,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="integer_to_binary" arity="2"/>
+      <name name="integer_to_binary" arity="2" since="OTP R16B"/>
       <fsummary>Text representation of an integer.</fsummary>
       <desc>
         <p>Returns a binary corresponding to the text
@@ -2258,7 +2258,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="integer_to_list" arity="1"/>
+      <name name="integer_to_list" arity="1" since=""/>
       <fsummary>Text representation of an integer.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -2270,7 +2270,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="integer_to_list" arity="2"/>
+      <name name="integer_to_list" arity="2" since=""/>
       <fsummary>Text representation of an integer.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -2283,7 +2283,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="iolist_size" arity="1"/>
+      <name name="iolist_size" arity="1" since=""/>
       <fsummary>Size of an iolist.</fsummary>
       <desc>
         <p>Returns an integer, that is the size in bytes,
@@ -2296,7 +2296,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="iolist_to_binary" arity="1"/>
+      <name name="iolist_to_binary" arity="1" since=""/>
       <fsummary>Convert an iolist to a binary.</fsummary>
       <desc>
         <p>Returns a binary that is made from the integers and
@@ -2314,7 +2314,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="iolist_to_iovec" arity="1"/>
+      <name name="iolist_to_iovec" arity="1" since="OTP 20.1"/>
       <fsummary>Converts an iolist to a iovec.</fsummary>
       <desc>
         <p>Returns an iovec that is made from the integers and binaries in
@@ -2323,7 +2323,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_alive" arity="0"/>
+      <name name="is_alive" arity="0" since=""/>
       <fsummary>Check whether the local node is alive.</fsummary>
       <desc>
         <p>Returns <c>true</c> if the local node is alive (that is, if
@@ -2333,7 +2333,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_atom" arity="1"/>
+      <name name="is_atom" arity="1" since=""/>
       <fsummary>Check whether a term is an atom.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is an atom,
@@ -2343,7 +2343,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_binary" arity="1"/>
+      <name name="is_binary" arity="1" since=""/>
       <fsummary>Check whether a term is a binary.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a binary,
@@ -2354,7 +2354,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_bitstring" arity="1"/>
+      <name name="is_bitstring" arity="1" since=""/>
       <fsummary>Check whether a term is a bitstring.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a
@@ -2364,7 +2364,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_boolean" arity="1"/>
+      <name name="is_boolean" arity="1" since=""/>
       <fsummary>Check whether a term is a boolean.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is the
@@ -2375,7 +2375,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_builtin" arity="3"/>
+      <name name="is_builtin" arity="3" since=""/>
       <fsummary>Check if a function is a BIF implemented in C.</fsummary>
       <desc>
         <p>This BIF is useful for builders of cross-reference tools.</p>
@@ -2386,7 +2386,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_float" arity="1"/>
+      <name name="is_float" arity="1" since=""/>
       <fsummary>Check whether a term is a float.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a floating point
@@ -2396,7 +2396,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_function" arity="1"/>
+      <name name="is_function" arity="1" since=""/>
       <fsummary>Check whether a term is a fun.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a fun, otherwise
@@ -2406,7 +2406,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_function" arity="2"/>
+      <name name="is_function" arity="2" since=""/>
       <fsummary>Check whether a term is a fun with a specified given arity.
       </fsummary>
       <desc>
@@ -2418,7 +2418,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_integer" arity="1"/>
+      <name name="is_integer" arity="1" since=""/>
       <fsummary>Check whether a term is an integer.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is an integer,
@@ -2428,7 +2428,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_list" arity="1"/>
+      <name name="is_list" arity="1" since=""/>
       <fsummary>Check whether a term is a list.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a list with
@@ -2438,7 +2438,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_map" arity="1"/>
+      <name name="is_map" arity="1" since="OTP 17.0"/>
       <fsummary>Check whether a term is a map.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a map,
@@ -2448,7 +2448,7 @@ os_prompt%</pre>
     </func>
 
     <func>
-      <name name="is_map_key" arity="2"/>
+      <name name="is_map_key" arity="2" since="OTP 21.0"/>
       <fsummary></fsummary>
       <desc>
         <p>Returns <c>true</c> if map <c><anno>Map</anno></c> contains
@@ -2468,7 +2468,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_number" arity="1"/>
+      <name name="is_number" arity="1" since=""/>
       <fsummary>Check whether a term is a number.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is an integer or a
@@ -2478,7 +2478,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_pid" arity="1"/>
+      <name name="is_pid" arity="1" since=""/>
       <fsummary>Check whether a term is a process identifier.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a process
@@ -2488,7 +2488,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_port" arity="1"/>
+      <name name="is_port" arity="1" since=""/>
       <fsummary>Check whether a term is a port.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a port identifier,
@@ -2498,7 +2498,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_process_alive" arity="1"/>
+      <name name="is_process_alive" arity="1" since=""/>
       <fsummary>Check whether a process is alive.</fsummary>
       <desc>
         <p><c><anno>Pid</anno></c> must refer to a process at the local
@@ -2510,7 +2510,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_record" arity="2"/>
+      <name name="is_record" arity="2" since=""/>
       <fsummary>Check whether a term appears to be a record.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a tuple and its
@@ -2531,7 +2531,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_record" arity="3"/>
+      <name name="is_record" arity="3" since=""/>
       <fsummary>Check whether a term appears to be a record.</fsummary>
       <desc>
         <p><c><anno>RecordTag</anno></c> must be an atom.</p>
@@ -2550,7 +2550,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_reference" arity="1"/>
+      <name name="is_reference" arity="1" since=""/>
       <fsummary>Check whether a term is a reference.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a reference,
@@ -2560,7 +2560,7 @@ false</code>
     </func>
 
     <func>
-      <name name="is_tuple" arity="1"/>
+      <name name="is_tuple" arity="1" since=""/>
       <fsummary>Check whether a term is a tuple.</fsummary>
       <desc>
         <p>Returns <c>true</c> if <c><anno>Term</anno></c> is a tuple,
@@ -2570,7 +2570,7 @@ false</code>
     </func>
 
     <func>
-      <name name="length" arity="1"/>
+      <name name="length" arity="1" since=""/>
       <fsummary>Length of a list.</fsummary>
       <desc>
         <p>Returns the length of <c><anno>List</anno></c>, for example:</p>
@@ -2582,7 +2582,7 @@ false</code>
     </func>
 
     <func>
-      <name name="link" arity="1"/>
+      <name name="link" arity="1" since=""/>
       <fsummary>Create a link to another process (or port).</fsummary>
       <desc>
         <p>Creates a link between the calling process and another
@@ -2609,7 +2609,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_atom" arity="1"/>
+      <name name="list_to_atom" arity="1" since=""/>
       <fsummary>Convert from text representation to an atom.</fsummary>
       <desc>
         <p>Returns the atom whose text representation is
@@ -2629,7 +2629,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_binary" arity="1"/>
+      <name name="list_to_binary" arity="1" since=""/>
       <fsummary>Convert a list to a binary.</fsummary>
       <desc>
         <p>Returns a binary that is made from the integers and
@@ -2647,7 +2647,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_bitstring" arity="1"/>
+      <name name="list_to_bitstring" arity="1" since=""/>
       <fsummary>Convert a list to a bitstring.</fsummary>
       <type name="bitstring_list"/>
       <desc>
@@ -2668,7 +2668,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_existing_atom" arity="1"/>
+      <name name="list_to_existing_atom" arity="1" since=""/>
       <fsummary>Convert from text representation to an atom.</fsummary>
       <desc>
         <p>Returns the atom whose text representation is
@@ -2689,7 +2689,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_float" arity="1"/>
+      <name name="list_to_float" arity="1" since=""/>
       <fsummary>Convert from text representation to a float.</fsummary>
       <desc>
         <p>Returns the float whose text representation is
@@ -2703,7 +2703,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_integer" arity="1"/>
+      <name name="list_to_integer" arity="1" since=""/>
       <fsummary>Convert from text representation to an integer.</fsummary>
       <desc>
         <p>Returns an integer whose text representation is
@@ -2717,7 +2717,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_integer" arity="2"/>
+      <name name="list_to_integer" arity="2" since=""/>
       <fsummary>Convert from text representation to an integer.</fsummary>
       <desc>
         <p>Returns an integer whose text representation in base
@@ -2732,7 +2732,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_pid" arity="1"/>
+      <name name="list_to_pid" arity="1" since=""/>
       <fsummary>Convert from text representation to a pid.</fsummary>
       <desc>
         <p>Returns a process identifier whose text representation is a 
@@ -2750,7 +2750,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_port" arity="1"/>
+      <name name="list_to_port" arity="1" since="OTP 20.0"/>
       <fsummary>Convert from text representation to a port.</fsummary>
       <desc>
         <p>Returns a port identifier whose text representation is a
@@ -2768,7 +2768,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_ref" arity="1"/>
+      <name name="list_to_ref" arity="1" since="OTP 20.0"/>
       <fsummary>Convert from text representation to a ref.</fsummary>
       <desc>
         <p>Returns a reference whose text representation is a
@@ -2786,7 +2786,7 @@ false</code>
     </func>
 
     <func>
-      <name name="list_to_tuple" arity="1"/>
+      <name name="list_to_tuple" arity="1" since=""/>
       <fsummary>Convert a list to a tuple.</fsummary>
       <desc>
         <p>Returns a tuple corresponding to <c><anno>List</anno></c>,
@@ -2799,7 +2799,7 @@ false</code>
     </func>
 
     <func>
-      <name name="load_module" arity="2"/>
+      <name name="load_module" arity="2" since=""/>
       <fsummary>Load object code for a module.</fsummary>
       <desc>
         <p>If <c><anno>Binary</anno></c> contains the object code for module
@@ -2832,7 +2832,7 @@ false</code>
     </func>
 
     <func>
-      <name name="load_nif" arity="2"/>
+      <name name="load_nif" arity="2" since=""/>
       <fsummary>Load NIF library.</fsummary>
       <desc>
         <p>Loads and links a dynamic library containing native
@@ -2885,7 +2885,7 @@ false</code>
     </func>
 
     <func>
-      <name name="loaded" arity="0"/>
+      <name name="loaded" arity="0" since=""/>
       <fsummary>List all loaded modules.</fsummary>
       <desc>
         <p>Returns a list of all loaded Erlang modules (current and
@@ -2896,7 +2896,7 @@ false</code>
     </func>
 
     <func>
-      <name name="localtime" arity="0"/>
+      <name name="localtime" arity="0" since=""/>
       <fsummary>Current local date and time.</fsummary>
       <desc>
         <p>Returns the current local date and time,
@@ -2911,7 +2911,7 @@ false</code>
     </func>
 
     <func>
-      <name name="localtime_to_universaltime" arity="1"/>
+      <name name="localtime_to_universaltime" arity="1" since=""/>
       <fsummary>Convert from local to Universal Time Coordinated (UTC) date
         and time.</fsummary>
       <desc>
@@ -2928,7 +2928,7 @@ false</code>
     </func>
 
     <func>
-      <name name="localtime_to_universaltime" arity="2"/>
+      <name name="localtime_to_universaltime" arity="2" since=""/>
       <fsummary>Convert from local to Universal Time Coordinated (UTC) date
         and time.</fsummary>
       <desc>
@@ -2954,7 +2954,7 @@ false</code>
     </func>
 
     <func>
-      <name name="make_ref" arity="0"/>
+      <name name="make_ref" arity="0" since=""/>
       <fsummary>Return a unique reference.</fsummary>
       <desc>
         <p>Returns a
@@ -2971,7 +2971,7 @@ false</code>
     </func>
 
     <func>
-      <name name="make_tuple" arity="2"/>
+      <name name="make_tuple" arity="2" since=""/>
       <fsummary>Create a new tuple of a specified arity.</fsummary>
       <desc>
         <p>Creates a new tuple of the specified <c><anno>Arity</anno></c>, where
@@ -2983,7 +2983,7 @@ false</code>
     </func>
 
     <func>
-      <name name="make_tuple" arity="3"/>
+      <name name="make_tuple" arity="3" since=""/>
       <fsummary>Create a new tuple with specifed arity and contents.</fsummary>
       <desc>
         <p>Creates a tuple of size <c><anno>Arity</anno></c>, where each element
@@ -3001,7 +3001,7 @@ false</code>
     </func>
 
     <func>
-      <name name="map_get" arity="2" />
+      <name name="map_get" arity="2"  since="OTP 21.0"/>
       <fsummary>Extract a value from a map</fsummary>
       <desc>
         <p>Returns value <c><anno>Value</anno></c> associated with
@@ -3020,7 +3020,7 @@ false</code>
     </func>
 
     <func>
-      <name name="map_size" arity="1"/>
+      <name name="map_size" arity="1" since="OTP 17.0"/>
       <fsummary>Return the size of a map.</fsummary>
       <desc>
         <p>Returns an integer, which is the number of key-value pairs
@@ -3033,7 +3033,7 @@ false</code>
     </func>
 
     <func>
-      <name name="match_spec_test" arity="3"/>
+      <name name="match_spec_test" arity="3" since="OTP 19.0"/>
       <fsummary>Test that a match specification works.</fsummary>
       <desc>
         <p>Tests a match specification used in calls to
@@ -3071,7 +3071,7 @@ false</code>
     </func>
 
     <func>
-      <name name="max" arity="2"/>
+      <name name="max" arity="2" since=""/>
       <fsummary>Return the largest of two terms.</fsummary>
       <desc>
         <p>Returns the largest of <c><anno>Term1</anno></c> and
@@ -3081,7 +3081,7 @@ false</code>
     </func>
 
     <func>
-      <name name="md5" arity="1"/>
+      <name name="md5" arity="1" since=""/>
       <fsummary>Compute an MD5 message digest.</fsummary>
       <desc>
         <p>Computes an MD5 message digest from <c><anno>Data</anno></c>, where
@@ -3099,7 +3099,7 @@ false</code>
     </func>
 
     <func>
-      <name name="md5_final" arity="1"/>
+      <name name="md5_final" arity="1" since=""/>
       <fsummary>Finish the update of an MD5 context and return the computed
         MD5 message digest.</fsummary>
       <desc>
@@ -3109,7 +3109,7 @@ false</code>
     </func>
 
     <func>
-      <name name="md5_init" arity="0"/>
+      <name name="md5_init" arity="0" since=""/>
       <fsummary>Create an MD5 context.</fsummary>
       <desc>
         <p>Creates an MD5 context, to be used in the following calls to
@@ -3118,7 +3118,7 @@ false</code>
     </func>
 
     <func>
-      <name name="md5_update" arity="2"/>
+      <name name="md5_update" arity="2" since=""/>
       <fsummary>Update an MD5 context with data and return a new context.
       </fsummary>
       <desc>
@@ -3129,7 +3129,7 @@ false</code>
     </func>
 
     <func>
-      <name name="memory" arity="0"/>
+      <name name="memory" arity="0" since=""/>
       <fsummary>Information about dynamically allocated memory.</fsummary>
       <type name="memory_type"/>
       <desc>
@@ -3273,8 +3273,8 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="memory" arity="1" clause_i="1"/>
-      <name name="memory" arity="1" clause_i="2"/>
+      <name name="memory" arity="1" clause_i="1" since=""/>
+      <name name="memory" arity="1" clause_i="2" since=""/>
       <fsummary>Information about dynamically allocated memory.</fsummary>
       <type name="memory_type"/>
       <desc>
@@ -3313,7 +3313,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="min" arity="2"/>
+      <name name="min" arity="2" since=""/>
       <fsummary>Return the smallest of two terms.</fsummary>
       <desc>
         <p>Returns the smallest of <c><anno>Term1</anno></c> and
@@ -3323,7 +3323,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="module_loaded" arity="1"/>
+      <name name="module_loaded" arity="1" since=""/>
       <fsummary>Check if a module is loaded.</fsummary>
       <desc>
         <p>Returns <c>true</c> if the module <c><anno>Module</anno></c>
@@ -3338,9 +3338,9 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="monitor" arity="2" clause_i="1"/>
-      <name name="monitor" arity="2" clause_i="2"/>
-      <name name="monitor" arity="2" clause_i="3"/>
+      <name name="monitor" arity="2" clause_i="1" since=""/>
+      <name name="monitor" arity="2" clause_i="2" since="?"/>
+      <name name="monitor" arity="2" clause_i="3" since="OTP 18.0"/>
       <fsummary>Start monitoring.</fsummary>
       <type name="registered_name"/>
       <type name="registered_process_identifier"/>
@@ -3512,7 +3512,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="monitor_node" arity="2"/>
+      <name name="monitor_node" arity="2" since=""/>
       <fsummary>Monitor the status of a node.</fsummary>
       <desc>
         <p>Monitor the status of the node <c><anno>Node</anno></c>.
@@ -3536,7 +3536,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="monitor_node" arity="3"/>
+      <name name="monitor_node" arity="3" since=""/>
       <fsummary>Monitor the status of a node.</fsummary>
       <desc>
         <p>Behaves as
@@ -3562,7 +3562,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="monotonic_time" arity="0"/>
+      <name name="monotonic_time" arity="0" since="OTP 18.0"/>
       <fsummary>Current Erlang monotonic time.</fsummary>
       <desc>
         <p>Returns the current
@@ -3596,7 +3596,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="monotonic_time" arity="1"/>
+      <name name="monotonic_time" arity="1" since="OTP 18.0"/>
       <fsummary>Current Erlang monotonic time.</fsummary>
       <desc>
         <p>Returns the current
@@ -3614,7 +3614,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="nif_error" arity="1"/>
+      <name name="nif_error" arity="1" since="OTP R14B"/>
       <fsummary>Stop execution with a specified reason.</fsummary>
       <desc>
         <p>Works exactly like
@@ -3627,7 +3627,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="nif_error" arity="2"/>
+      <name name="nif_error" arity="2" since="OTP R14B"/>
       <fsummary>Stop execution with a specified reason.</fsummary>
       <desc>
         <p>Works exactly like
@@ -3640,7 +3640,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="node" arity="0"/>
+      <name name="node" arity="0" since=""/>
       <fsummary>Name of the local node.</fsummary>
       <desc>
         <p>Returns the name of the local node. If the node is not alive,
@@ -3650,7 +3650,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="node" arity="1"/>
+      <name name="node" arity="1" since=""/>
       <fsummary>At which node a pid, port, or reference originates.</fsummary>
       <desc>
         <p>Returns the node where <c><anno>Arg</anno></c> originates.
@@ -3663,7 +3663,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="nodes" arity="0"/>
+      <name name="nodes" arity="0" since=""/>
       <fsummary>All visible nodes in the system.</fsummary>
       <desc>
         <p>Returns a list of all visible nodes in the system, except
@@ -3672,7 +3672,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="nodes" arity="1"/>
+      <name name="nodes" arity="1" since=""/>
       <fsummary>All nodes of a certain type in the system.</fsummary>
       <desc>
         <p>Returns a list of nodes according to the argument specified.
@@ -3715,7 +3715,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="now" arity="0"/>
+      <name name="now" arity="0" since=""/>
       <fsummary>Elapsed time since 00:00 GMT.</fsummary>
       <type name="timestamp"/>
       <desc>
@@ -3744,7 +3744,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="open_port" arity="2"/>
+      <name name="open_port" arity="2" since=""/>
       <fsummary>Open a port.</fsummary>
       <desc>
         <p>Returns a port identifier as the result of opening a
@@ -4085,7 +4085,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="phash" arity="2"/>
+      <name name="phash" arity="2" since=""/>
       <fsummary>Portable hash function.</fsummary>
       <type_desc variable="Range">Range = 1..2^32, Hash = 1..Range</type_desc>
       <desc>
@@ -4100,8 +4100,8 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="phash2" arity="1"/>
-      <name name="phash2" arity="2"/>
+      <name name="phash2" arity="1" since=""/>
+      <name name="phash2" arity="2" since=""/>
       <fsummary>Portable hash function.</fsummary>
       <type_desc variable="Range">1..2^32</type_desc>
       <type_desc variable="Hash">0..Range-1</type_desc>
@@ -4125,7 +4125,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="pid_to_list" arity="1"/>
+      <name name="pid_to_list" arity="1" since=""/>
       <fsummary>Text representation of a pid.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -4134,7 +4134,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_call" arity="3"/>
+      <name name="port_call" arity="3" since=""/>
       <fsummary>Perform a synchronous call to a port with term data.</fsummary>
       <desc>
         <p>Performs a synchronous call to a port. The meaning of
@@ -4179,7 +4179,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_close" arity="1"/>
+      <name name="port_close" arity="1" since=""/>
       <fsummary>Close an open port.</fsummary>
       <desc>
         <p>Closes an open port. Roughly the same as <c><anno>Port</anno> !
@@ -4219,7 +4219,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_command" arity="2"/>
+      <name name="port_command" arity="2" since=""/>
       <fsummary>Send data to a port.</fsummary>
       <desc>
         <p>Sends data to a port. Same as
@@ -4266,7 +4266,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_command" arity="3"/>
+      <name name="port_command" arity="3" since=""/>
       <fsummary>Send data to a port.</fsummary>
       <desc>
         <p>Sends data to a port. <c>port_command(Port, Data, [])</c>
@@ -4325,7 +4325,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_connect" arity="2"/>
+      <name name="port_connect" arity="2" since=""/>
       <fsummary>Set the owner of a port.</fsummary>
       <desc>
         <p>Sets the port owner (the connected port) to <c><anno>Pid</anno></c>.
@@ -4394,7 +4394,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_control" arity="3"/>
+      <name name="port_control" arity="3" since=""/>
       <fsummary>Perform a synchronous control operation on a port.</fsummary>
       <desc>
         <p>Performs a synchronous control operation on a port.
@@ -4431,7 +4431,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="1"/>
+      <name name="port_info" arity="1" since=""/>
       <fsummary>Information about a port.</fsummary>
       <desc>
         <p>Returns a list containing tuples with information about
@@ -4462,7 +4462,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="1"/>
+      <name name="port_info" arity="2" clause_i="1" since=""/>
       <fsummary>Information about the connected process of a port.</fsummary>
       <desc>
         <p><c><anno>Pid</anno></c> is the process identifier of the process
@@ -4478,7 +4478,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="2"/>
+      <name name="port_info" arity="2" clause_i="2" since=""/>
       <fsummary>Information about the internal index of a port.</fsummary>
       <desc>
         <p><c><anno>Index</anno></c> is the internal index of the port. This
@@ -4494,7 +4494,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="3"/>
+      <name name="port_info" arity="2" clause_i="3" since=""/>
       <fsummary>Information about the input of a port.</fsummary>
       <desc>
         <p><c><anno>Bytes</anno></c> is the total number of bytes
@@ -4510,7 +4510,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="4"/>
+      <name name="port_info" arity="2" clause_i="4" since=""/>
       <fsummary>Information about the links of a port.</fsummary>
       <desc>
         <p><c><anno>Pids</anno></c> is a list of the process identifiers
@@ -4526,7 +4526,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="5"/>
+      <name name="port_info" arity="2" clause_i="5" since="?"/>
       <fsummary>Information about the locking of a port.</fsummary>
       <desc>
         <p><c><anno>Locking</anno></c> is one of the following:</p>
@@ -4547,7 +4547,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="6"/>
+      <name name="port_info" arity="2" clause_i="6" since="?"/>
       <fsummary>Information about the memory size of a port.</fsummary>
       <desc>
         <p><c><anno>Bytes</anno></c> is the total number of
@@ -4565,7 +4565,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="7"/>
+      <name name="port_info" arity="2" clause_i="7" since="?"/>
       <fsummary>Information about the monitors of a port.</fsummary>
       <desc>
         <p><c><anno>Monitors</anno></c> represent processes monitored by
@@ -4581,7 +4581,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="8"/>
+      <name name="port_info" arity="2" clause_i="8" since="?"/>
       <fsummary>Which processes are monitoring this port.</fsummary>
       <desc>
         <p>Returns list of pids that are monitoring given port at the
@@ -4597,7 +4597,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="9"/>
+      <name name="port_info" arity="2" clause_i="9" since=""/>
       <fsummary>Information about the name of a port.</fsummary>
       <desc>
         <p><c><anno>Name</anno></c> is the command name set by
@@ -4613,7 +4613,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="10"/>
+      <name name="port_info" arity="2" clause_i="10" since="?"/>
       <fsummary>Information about the OS pid of a port.</fsummary>
       <desc>
         <p><c><anno>OsPid</anno></c> is the process identifier (or equivalent)
@@ -4632,7 +4632,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="11"/>
+      <name name="port_info" arity="2" clause_i="11" since=""/>
       <fsummary>Information about the output of a port.</fsummary>
       <desc>
         <p><c><anno>Bytes</anno></c> is the total number of bytes written
@@ -4651,7 +4651,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="12"/>
+      <name name="port_info" arity="2" clause_i="12" since="?"/>
       <fsummary>Information about the parallelism hint of a port.</fsummary>
       <desc>
         <p><c><anno>Boolean</anno></c> corresponds to the port parallelism
@@ -4662,7 +4662,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="13"/>
+      <name name="port_info" arity="2" clause_i="13" since="?"/>
       <fsummary>Information about the queue size of a port.</fsummary>
       <desc>
         <p><c><anno>Bytes</anno></c> is the total number
@@ -4679,7 +4679,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_info" arity="2" clause_i="14"/>
+      <name name="port_info" arity="2" clause_i="14" since=""/>
       <fsummary>Information about the registered name of a port.</fsummary>
       <desc>
         <p><c><anno>RegisteredName</anno></c> is the registered name of
@@ -4696,7 +4696,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="port_to_list" arity="1"/>
+      <name name="port_to_list" arity="1" since=""/>
       <fsummary>Text representation of a port identifier.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -4705,7 +4705,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="ports" arity="0"/>
+      <name name="ports" arity="0" since=""/>
       <fsummary>List all existing ports.</fsummary>
       <desc>
         <p>Returns a list of port identifiers corresponding to all the
@@ -4715,7 +4715,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="pre_loaded" arity="0"/>
+      <name name="pre_loaded" arity="0" since=""/>
       <fsummary>List all preloaded modules.</fsummary>
       <desc>
         <p>Returns a list of Erlang modules that are preloaded in
@@ -4726,7 +4726,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_display" arity="2"/>
+      <name name="process_display" arity="2" since=""/>
       <fsummary>Write information about a local process on standard error.
       </fsummary>
       <desc>
@@ -4740,7 +4740,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="2" clause_i="1"/>
+      <name name="process_flag" arity="2" clause_i="1" since=""/>
       <fsummary>Set process flag trap_exit for the calling process.</fsummary>
       <desc>
         <p>When <c>trap_exit</c> is set to <c>true</c>, exit signals
@@ -4757,7 +4757,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="2" clause_i="2"/>
+      <name name="process_flag" arity="2" clause_i="2" since=""/>
       <fsummary>Set process flag error_handler for the calling process.
       </fsummary>
       <desc>
@@ -4772,7 +4772,7 @@ RealSystem = system + MissedSystem</code>
 
     <func>
       <name name="process_flag" arity="2" clause_i="3"
-	    anchor="process_flag_min_heap_size"/>
+	    anchor="process_flag_min_heap_size" since=""/>
       <fsummary>Set process flag min_heap_size for the calling process.
       </fsummary>
       <desc>
@@ -4782,7 +4782,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="2" clause_i="4"/>
+      <name name="process_flag" arity="2" clause_i="4" since="?"/>
       <fsummary>Set process flag min_bin_vheap_size for the calling process.
       </fsummary>
       <desc>
@@ -4794,7 +4794,7 @@ RealSystem = system + MissedSystem</code>
 
     <func>
       <name name="process_flag" arity="2" clause_i="5"
-	    anchor="process_flag_max_heap_size"/>
+	    anchor="process_flag_max_heap_size" since="?"/>
       <fsummary>Set process flag max_heap_size for the calling process.
       </fsummary>
       <type name="max_heap_size"/>
@@ -4868,7 +4868,7 @@ RealSystem = system + MissedSystem</code>
 
     <func>
       <name name="process_flag" arity="2" clause_i="6"
-	    anchor="process_flag_message_queue_data"/>
+	    anchor="process_flag_message_queue_data" since="?"/>
       <fsummary>Set process flag message_queue_data for the calling process.
       </fsummary>
       <type name="message_queue_data"/>
@@ -4910,7 +4910,7 @@ RealSystem = system + MissedSystem</code>
 
     <func>
       <name name="process_flag" arity="2" clause_i="7"
-	    anchor="process_flag_priority"/>
+	    anchor="process_flag_priority" since=""/>
       <fsummary>Set process flag priority for the calling process.</fsummary>
       <type name="priority_level"/>
       <desc>
@@ -4982,7 +4982,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="2" clause_i="8"/>
+      <name name="process_flag" arity="2" clause_i="8" since=""/>
       <fsummary>Set process flag save_calls for the calling process.</fsummary>
       <desc>
         <p><c><anno>N</anno></c> must be an integer in the interval 0..10000.
@@ -5013,7 +5013,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="2" clause_i="9"/>
+      <name name="process_flag" arity="2" clause_i="9" since=""/>
       <fsummary>Set process flag sensitive for the calling process.</fsummary>
       <desc>
         <p>Sets or clears flag <c>sensitive</c> for the current process.
@@ -5047,7 +5047,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_flag" arity="3"/>
+      <name name="process_flag" arity="3" since="?"/>
       <fsummary>Set process flags for a process.</fsummary>
       <desc>
         <p>Sets certain flags for the process <c><anno>Pid</anno></c>,
@@ -5062,7 +5062,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_info" arity="1"/>
+      <name name="process_info" arity="1" since=""/>
       <fsummary>Information about a process.</fsummary>
       <type name="process_info_result_item"/>
       <type name="priority_level"/>
@@ -5113,8 +5113,8 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="process_info" arity="2" clause_i="1"/>
-      <name name="process_info" arity="2" clause_i="2"/>
+      <name name="process_info" arity="2" clause_i="1" since=""/>
+      <name name="process_info" arity="2" clause_i="2" since=""/>
       <fsummary>Information about a process.</fsummary>
       <type name="process_info_item"/>
       <type name="process_info_result_item"/>
@@ -5447,7 +5447,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="processes" arity="0"/>
+      <name name="processes" arity="0" since=""/>
       <fsummary>All processes.</fsummary>
       <desc>
         <p>Returns a list of process identifiers corresponding to
@@ -5464,7 +5464,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="purge_module" arity="1"/>
+      <name name="purge_module" arity="1" since=""/>
       <fsummary>Remove old code for a module.</fsummary>
       <desc>
         <p>Removes old code for <c><anno>Module</anno></c>.
@@ -5489,7 +5489,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="put" arity="2"/>
+      <name name="put" arity="2" since=""/>
       <fsummary>Add a new value to the process dictionary.</fsummary>
       <desc>
         <p>Adds a new <c><anno>Key</anno></c> to the process dictionary,
@@ -5511,7 +5511,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="raise" arity="3"/>
+      <name name="raise" arity="3" since=""/>
       <fsummary>Stop execution with an exception of specified class, reason,
         and call stack backtrace.</fsummary>
       <type name="raise_stacktrace"/>
@@ -5550,7 +5550,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="read_timer" arity="1"/>
+      <name name="read_timer" arity="1" since=""/>
       <fsummary>Read the state of a timer.</fsummary>
       <desc>
         <p>Reads the state of a timer. The same as calling
@@ -5560,7 +5560,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="read_timer" arity="2"/>
+      <name name="read_timer" arity="2" since="OTP 18.0"/>
       <fsummary>Read the state of a timer.</fsummary>
       <desc>
         <p>Reads the state of a timer that has been created by either
@@ -5616,7 +5616,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="ref_to_list" arity="1"/>
+      <name name="ref_to_list" arity="1" since=""/>
       <fsummary>Text representation of a reference.</fsummary>
       <desc>
         <p>Returns a string corresponding to the text
@@ -5629,7 +5629,7 @@ RealSystem = system + MissedSystem</code>
     </func>
 
     <func>
-      <name name="register" arity="2"/>
+      <name name="register" arity="2" since=""/>
       <fsummary>Register a name for a pid (or port).</fsummary>
       <desc>
         <p>Associates the name <c><anno>RegName</anno></c> with a process
@@ -5658,7 +5658,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="registered" arity="0"/>
+      <name name="registered" arity="0" since=""/>
       <fsummary>All registered names.</fsummary>
       <desc>
         <p>Returns a list of names that have been registered using
@@ -5671,7 +5671,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="resume_process" arity="1"/>
+      <name name="resume_process" arity="1" since=""/>
       <fsummary>Resume a suspended process.</fsummary>
       <desc>
         <p>Decreases the suspend count on the process identified by
@@ -5712,7 +5712,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="round" arity="1"/>
+      <name name="round" arity="1" since=""/>
       <fsummary>Return an integer by rounding a number.</fsummary>
       <desc>
         <p>Returns an integer by rounding <c><anno>Number</anno></c>,
@@ -5725,7 +5725,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="self" arity="0"/>
+      <name name="self" arity="0" since=""/>
       <fsummary>Return pid of the calling process.</fsummary>
       <desc>
         <p>Returns the process identifier of the calling process, for
@@ -5738,7 +5738,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send" arity="2"/>
+      <name name="send" arity="2" since=""/>
       <fsummary>Send a message.</fsummary>
       <type name="dst"/>
       <desc>
@@ -5758,7 +5758,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send" arity="3"/>
+      <name name="send" arity="3" since=""/>
       <fsummary>Send a message conditionally.</fsummary>
       <type name="dst"/>
       <desc>
@@ -5790,7 +5790,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send_after" arity="3"/>
+      <name name="send_after" arity="3" since=""/>
       <fsummary>Start a timer.</fsummary>
       <desc>
         <p>Starts a timer. The same as calling
@@ -5801,7 +5801,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send_after" arity="4"/>
+      <name name="send_after" arity="4" since="OTP 18.0"/>
       <fsummary>Start a timer.</fsummary>
       <desc>
         <p>Starts a timer. When the timer expires, the message
@@ -5814,7 +5814,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send_nosuspend" arity="2"/>
+      <name name="send_nosuspend" arity="2" since=""/>
       <fsummary>Try to send a message without ever blocking.</fsummary>
       <type name="dst"/>
       <desc>
@@ -5864,7 +5864,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="send_nosuspend" arity="3"/>
+      <name name="send_nosuspend" arity="3" since=""/>
       <fsummary>Try to send a message without ever blocking.</fsummary>
       <type name="dst"/>
       <desc>
@@ -5897,7 +5897,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="set_cookie" arity="2"/>
+      <name name="set_cookie" arity="2" since=""/>
       <fsummary>Set the magic cookie of a node.</fsummary>
       <desc>
         <p>Sets the magic cookie of <c><anno>Node</anno></c> to the atom
@@ -5914,7 +5914,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="setelement" arity="3"/>
+      <name name="setelement" arity="3" since=""/>
       <fsummary>Set the Nth element of a tuple.</fsummary>
       <type_desc variable="Index">1..tuple_size(<anno>Tuple1</anno></type_desc>
       <desc>
@@ -5931,7 +5931,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="size" arity="1"/>
+      <name name="size" arity="1" since=""/>
       <fsummary>Size of a tuple or binary.</fsummary>
       <desc>
         <p>Returns the number of elements in a tuple or the number of
@@ -5954,7 +5954,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn" arity="1"/>
+      <name name="spawn" arity="1" since=""/>
       <fsummary>Create a new process with a fun as entry point.</fsummary>
       <desc>
         <p>Returns the process identifier of a new process started by the
@@ -5965,7 +5965,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn" arity="2"/>
+      <name name="spawn" arity="2" since=""/>
       <fsummary>Create a new process with a fun as entry point on a specified
         node.</fsummary>
       <desc>
@@ -5979,7 +5979,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn" arity="3"/>
+      <name name="spawn" arity="3" since=""/>
       <fsummary>Create a new process with a function as entry point.</fsummary>
       <desc>
         <p>Returns the process identifier of a new process started by
@@ -6004,7 +6004,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn" arity="4"/>
+      <name name="spawn" arity="4" since=""/>
       <fsummary>Create a new process with a function as entry point on a
         specified node.</fsummary>
       <desc>
@@ -6019,7 +6019,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_link" arity="1"/>
+      <name name="spawn_link" arity="1" since=""/>
       <fsummary>Create and link to a new process with a fun as entry point.
       </fsummary>
       <desc>
@@ -6033,7 +6033,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_link" arity="2"/>
+      <name name="spawn_link" arity="2" since=""/>
       <fsummary>Create and link to a new process with a fun as entry point on
         a specified node.</fsummary>
       <desc>
@@ -6050,7 +6050,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_link" arity="3"/>
+      <name name="spawn_link" arity="3" since=""/>
       <fsummary>Create and link to a new process with a function as entry point.
       </fsummary>
       <desc>
@@ -6064,7 +6064,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_link" arity="4"/>
+      <name name="spawn_link" arity="4" since=""/>
       <fsummary>Create and link to a new process with a function as entry point
         on a specified node.</fsummary>
       <desc>
@@ -6082,7 +6082,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_monitor" arity="1"/>
+      <name name="spawn_monitor" arity="1" since=""/>
       <fsummary>Create and monitor a new process with a fun as entry point.
       </fsummary>
       <desc>
@@ -6096,7 +6096,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_monitor" arity="3"/>
+      <name name="spawn_monitor" arity="3" since=""/>
       <fsummary>Create and monitor a new process with a function as entry point.
       </fsummary>
       <desc>
@@ -6110,7 +6110,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_opt" arity="2"/>
+      <name name="spawn_opt" arity="2" since=""/>
       <fsummary>Create a new process with a fun as entry point.</fsummary>
       <type name="priority_level"/>
       <type name="max_heap_size"/>
@@ -6128,7 +6128,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_opt" arity="3"/>
+      <name name="spawn_opt" arity="3" since=""/>
       <fsummary>Create a new process with a fun as entry point on a specified
         node.</fsummary>
       <type name="priority_level"/>
@@ -6146,7 +6146,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_opt" arity="4"/>
+      <name name="spawn_opt" arity="4" since=""/>
       <fsummary>Create a new process with a function as entry point.</fsummary>
       <type name="priority_level"/>
       <type name="max_heap_size"/>
@@ -6282,7 +6282,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="spawn_opt" arity="5"/>
+      <name name="spawn_opt" arity="5" since=""/>
       <fsummary>Create a new process with a function as entry point on a
         specified node.</fsummary>
       <type name="priority_level"/>
@@ -6305,7 +6305,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="split_binary" arity="2"/>
+      <name name="split_binary" arity="2" since=""/>
       <fsummary>Split a binary into two.</fsummary>
       <type_desc variable="Pos">0..byte_size(Bin)</type_desc>
       <desc>
@@ -6329,7 +6329,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="start_timer" arity="3"/>
+      <name name="start_timer" arity="3" since=""/>
       <fsummary>Start a timer.</fsummary>
       <desc>
         <p>Starts a timer. The same as calling
@@ -6340,7 +6340,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="start_timer" arity="4"/>
+      <name name="start_timer" arity="4" since="OTP 18.0"/>
       <fsummary>Start a timer.</fsummary>
       <desc>
         <p>Starts a timer. When the timer expires, the message
@@ -6399,7 +6399,7 @@ true</pre>
 
     <func>
       <name name="statistics" arity="1" clause_i="1"
-	    anchor="statistics_active_tasks"/>
+	    anchor="statistics_active_tasks" since="?"/>
       <fsummary>Information about active processes and ports.</fsummary>
       <desc>
         <p>Returns the same as
@@ -6414,7 +6414,7 @@ true</pre>
 
     <func>
       <name name="statistics" arity="1" clause_i="2"
-	    anchor="statistics_active_tasks_all"/>
+	    anchor="statistics_active_tasks_all" since="?"/>
       <fsummary>Information about active processes and ports.</fsummary>
       <desc>
         <p>Returns a list where each element represents the amount
@@ -6455,7 +6455,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="statistics" arity="1" clause_i="3"/>
+      <name name="statistics" arity="1" clause_i="3" since=""/>
       <fsummary>Information about context switches.</fsummary>
       <desc>
         <p>Returns the total number of context switches since the
@@ -6465,7 +6465,7 @@ true</pre>
 
     <func>
       <name name="statistics" arity="1" clause_i="4"
-	    anchor="statistics_exact_reductions"/>
+	    anchor="statistics_exact_reductions" since=""/>
       <fsummary>Information about exact reductions.</fsummary>
       <desc>
         <p>Returns the number of exact reductions.</p>
@@ -6479,7 +6479,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="statistics" arity="1" clause_i="5"/>
+      <name name="statistics" arity="1" clause_i="5" since=""/>
       <fsummary>Information about garbage collection.</fsummary>
       <desc>
         <p>Returns information about garbage collection, for example:</p>
@@ -6491,7 +6491,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="statistics" arity="1" clause_i="6"/>
+      <name name="statistics" arity="1" clause_i="6" since=""/>
       <fsummary>Information about I/O.</fsummary>
       <desc>
         <p>Returns <c><anno>Input</anno></c>,
@@ -6503,7 +6503,7 @@ true</pre>
 
     <func>
       <name name="statistics" arity="1" clause_i="7"
-	    anchor="statistics_microstate_accounting"/>
+	    anchor="statistics_microstate_accounting" since="?"/>
       <fsummary>Information about microstate accounting.</fsummary>
       <desc>
         <p>Microstate accounting can be used to measure how much time the Erlang
@@ -6646,7 +6646,7 @@ lists:map(
 
     <func>
       <name name="statistics" arity="1" clause_i="8"
-	    anchor="statistics_reductions"/>
+	    anchor="statistics_reductions" since=""/>
       <fsummary>Information about reductions.</fsummary>
       <desc>
         <p>Returns information about reductions, for example:</p>
@@ -6665,7 +6665,7 @@ lists:map(
 
     <func>
       <name name="statistics" arity="1" clause_i="9"
-	    anchor="statistics_run_queue"/>
+	    anchor="statistics_run_queue" since=""/>
       <fsummary>Information about the run-queues.</fsummary>
       <desc>
         <p>Returns the total length of all normal run-queues. That is, the number
@@ -6682,7 +6682,7 @@ lists:map(
 
     <func>
       <name name="statistics" arity="1" clause_i="10"
-	    anchor="statistics_run_queue_lengths"/>
+	    anchor="statistics_run_queue_lengths" since="?"/>
       <fsummary>Information about the run-queue lengths.</fsummary>
       <desc>
         <p>Returns the same as
@@ -6697,7 +6697,7 @@ lists:map(
 
     <func>
       <name name="statistics" arity="1" clause_i="11"
-	    anchor="statistics_run_queue_lengths_all"/>
+	    anchor="statistics_run_queue_lengths_all" since="?"/>
       <fsummary>Information about the run-queue lengths.</fsummary>
       <desc>
         <p>Returns a list where each element represents the amount
@@ -6739,7 +6739,7 @@ lists:map(
     </func>
 
     <func>
-      <name name="statistics" arity="1" clause_i="12"/>
+      <name name="statistics" arity="1" clause_i="12" since=""/>
       <fsummary>Information about runtime.</fsummary>
       <desc>
         <p>Returns information about runtime, in milliseconds.</p>
@@ -6758,7 +6758,7 @@ lists:map(
 
     <func>
       <name name="statistics" arity="1" clause_i="13"
-	    anchor="statistics_scheduler_wall_time"/>
+	    anchor="statistics_scheduler_wall_time" since="?"/>
       <fsummary>Information about each schedulers work time.</fsummary>
       <desc>
         <p>Returns a list of tuples with
@@ -6882,7 +6882,7 @@ ok
 
     <func>
       <name name="statistics" arity="1" clause_i="14"
-	    anchor="statistics_scheduler_wall_time_all"/>
+	    anchor="statistics_scheduler_wall_time_all" since="?"/>
       <fsummary>Information about each schedulers work time.</fsummary>
       <desc>
 	<p>The same as
@@ -6910,7 +6910,7 @@ ok
     </func>
     <func>
       <name name="statistics" arity="1" clause_i="15"
-	    anchor="statistics_total_active_tasks"/>
+	    anchor="statistics_total_active_tasks" since="?"/>
       <fsummary>Information about active processes and ports.</fsummary>
       <desc>
         <p>The same as calling
@@ -6921,7 +6921,7 @@ ok
 
     <func>
       <name name="statistics" arity="1" clause_i="16"
-	    anchor="statistics_total_active_tasks_all"/>
+	    anchor="statistics_total_active_tasks_all" since="?"/>
       <fsummary>Information about active processes and ports.</fsummary>
       <desc>
         <p>The same as calling
@@ -6932,7 +6932,7 @@ ok
 
     <func>
       <name name="statistics" arity="1" clause_i="17"
-	    anchor="statistics_total_run_queue_lengths"/>
+	    anchor="statistics_total_run_queue_lengths" since="?"/>
       <fsummary>Information about the run-queue lengths.</fsummary>
       <desc>
         <p>The same as calling
@@ -6943,7 +6943,7 @@ ok
 
     <func>
       <name name="statistics" arity="1" clause_i="18"
-	    anchor="statistics_total_run_queue_lengths_all"/>
+	    anchor="statistics_total_run_queue_lengths_all" since="?"/>
       <fsummary>Information about the run-queue lengths.</fsummary>
       <desc>
         <p>The same as calling
@@ -6953,7 +6953,7 @@ ok
     </func>
 
     <func>
-      <name name="statistics" arity="1" clause_i="19"/>
+      <name name="statistics" arity="1" clause_i="19" since=""/>
       <fsummary>Information about wall clock.</fsummary>
       <desc>
         <p>Returns information about wall clock. <c>wall_clock</c> can
@@ -6964,7 +6964,7 @@ ok
     </func>
 
     <func>
-      <name name="suspend_process" arity="1"/>
+      <name name="suspend_process" arity="1" since=""/>
       <fsummary>Suspend a process.</fsummary>
       <desc>
         <p>Suspends the process identified by
@@ -6979,7 +6979,7 @@ ok
     </func>
 
     <func>
-      <name name="suspend_process" arity="2"/>
+      <name name="suspend_process" arity="2" since=""/>
       <fsummary>Suspend a process.</fsummary>
       <desc>
         <p>Increases the suspend count on the process identified by
@@ -7125,7 +7125,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="1"/>
+      <name name="system_flag" arity="2" clause_i="1" since=""/>
       <fsummary>Set system flag <c>backtrace_depth</c>.</fsummary>
       <desc>
         <p>Sets the maximum depth of call stack back-traces in the
@@ -7138,7 +7138,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="2"
-	    anchor="system_flag_cpu_topology"/>
+	    anchor="system_flag_cpu_topology" since=""/>
       <fsummary>Set system flag <c>cpu_topology</c>.</fsummary>
       <type name="cpu_topology"/>
       <type name="level_entry"/>
@@ -7186,7 +7186,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="3"
-	    anchor="system_flag_dirty_cpu_schedulers_online"/>
+	    anchor="system_flag_dirty_cpu_schedulers_online" since="?"/>
       <fsummary>Set system_flag_dirty_cpu_schedulers_online.</fsummary>
       <desc>
         <p>
@@ -7214,7 +7214,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="4"/>
+      <name name="system_flag" arity="2" clause_i="4" since="?"/>
       <fsummary>Set system flag for erts_alloc.</fsummary>
       <desc>
         <p>Sets system flags for
@@ -7231,7 +7231,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="5"/>
+      <name name="system_flag" arity="2" clause_i="5" since=""/>
       <fsummary>Set system flag fullsweep_after.</fsummary>
       <desc>
         <p>Sets system flag <c>fullsweep_after</c>.
@@ -7251,7 +7251,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="6"
-	    anchor="system_flag_microstate_accounting"/>
+	    anchor="system_flag_microstate_accounting" since="?"/>
       <fsummary>Set system flag microstate_accounting.</fsummary>
       <desc>
         <p>
@@ -7264,7 +7264,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="7"/>
+      <name name="system_flag" arity="2" clause_i="7" since=""/>
       <fsummary>Set system flag min_heap_size.</fsummary>
       <desc>
         <p>Sets the default minimum heap size for processes. The size
@@ -7279,7 +7279,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="8"/>
+      <name name="system_flag" arity="2" clause_i="8" since="?"/>
       <fsummary>Set system flag min_bin_vheap_size.</fsummary>
       <desc>
         <p>Sets the default minimum binary virtual heap size for
@@ -7297,7 +7297,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="9"
-	    anchor="system_flag_max_heap_size"/>
+	    anchor="system_flag_max_heap_size" since="?"/>
       <fsummary>Set system flag max_heap_size.</fsummary>
       <type name="max_heap_size"/>
       <desc>
@@ -7315,7 +7315,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="10"
-	    anchor="system_flag_multi_scheduling"/>
+	    anchor="system_flag_multi_scheduling" since=""/>
       <fsummary>Set system flag multi_scheduling.</fsummary>
       <desc>
         <p>
@@ -7371,7 +7371,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="11"
-	    anchor="system_flag_scheduler_bind_type"/>
+	    anchor="system_flag_scheduler_bind_type" since=""/>
       <fsummary>Set system flag scheduler_bind_type.</fsummary>
       <type name="scheduler_bind_type"/>
       <desc>
@@ -7498,7 +7498,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="12"
-	    anchor="system_flag_scheduler_wall_time"/>
+	    anchor="system_flag_scheduler_wall_time" since="?"/>
       <fsummary>Set system flag scheduler_wall_time.</fsummary>
       <desc>
         <p>
@@ -7511,7 +7511,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="13"
-	    anchor="system_flag_schedulers_online"/>
+	    anchor="system_flag_schedulers_online" since=""/>
       <fsummary>Set system flag schedulers_online.</fsummary>
       <desc>
         <p>
@@ -7539,7 +7539,7 @@ ok
     </func>
 
     <func>
-      <name name="system_flag" arity="2" clause_i="14"/>
+      <name name="system_flag" arity="2" clause_i="14" since=""/>
       <fsummary>Set system flag trace_control_word.</fsummary>
       <desc>
         <p>Sets the value of the node trace control word to
@@ -7554,7 +7554,7 @@ ok
 
     <func>
       <name name="system_flag" arity="2" clause_i="15"
-	    anchor="system_flag_time_offset"/>
+	    anchor="system_flag_time_offset" since="?"/>
       <fsummary>Finalize the time offset.</fsummary>
       <desc>
         <p>
@@ -7583,7 +7583,7 @@ ok
     </func>
 
     <func>
-      <name name="system_info" arity="1" clause_i="76"/>
+      <name name="system_info" arity="1" clause_i="76" since=""/>
       <fsummary>System info overview.</fsummary>
       <desc>
         <p>Returns information about the current system.
@@ -7716,12 +7716,12 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="1"
-	    anchor="system_info_allocator"/>   <!-- allocated_areas -->
-      <name name="system_info" arity="1" clause_i="2"/>   <!-- allocator -->
-      <name name="system_info" arity="1" clause_i="3"/>   <!-- {allocator, _} -->
-      <name name="system_info" arity="1" clause_i="4"/>   <!-- alloc_util_allocators -->
-      <name name="system_info" arity="1" clause_i="5"/>   <!-- {allocator_sizes, _} -->
-      <name name="system_info" arity="1" clause_i="27"/>  <!-- elib_malloc -->
+	    anchor="system_info_allocator" since=""/>   <!-- allocated_areas -->
+      <name name="system_info" arity="1" clause_i="2" since=""/>   <!-- allocator -->
+      <name name="system_info" arity="1" clause_i="3" since=""/>   <!-- {allocator, _} -->
+      <name name="system_info" arity="1" clause_i="4" since=""/>   <!-- alloc_util_allocators -->
+      <name name="system_info" arity="1" clause_i="5" since=""/>   <!-- {allocator_sizes, _} -->
+      <name name="system_info" arity="1" clause_i="27" since=""/>  <!-- elib_malloc -->
       <fsummary>Information about the system allocators.</fsummary>
       <type variable="Allocator" name_i="2"/>
       <type variable="Version" name_i="2"/>
@@ -7873,10 +7873,10 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="12"
-	    anchor="system_info_cpu_topology"/>           <!-- cpu_topology -->
-      <name name="system_info" arity="1" clause_i="13"/>  <!-- {cpu_topology, _} -->
-      <name name="system_info" arity="1" clause_i="38"/>  <!-- logical_processors -->
-      <name name="system_info" arity="1" clause_i="73"/>  <!-- update_cpu_info -->
+	    anchor="system_info_cpu_topology" since=""/>           <!-- cpu_topology -->
+      <name name="system_info" arity="1" clause_i="13" since=""/>  <!-- {cpu_topology, _} -->
+      <name name="system_info" arity="1" clause_i="38" since=""/>  <!-- logical_processors -->
+      <name name="system_info" arity="1" clause_i="73" since="?"/>  <!-- update_cpu_info -->
       <fsummary>Information about the CPU topology of the system.</fsummary>
       <type name="cpu_topology"/>
       <type name="level_entry"/>
@@ -8028,15 +8028,15 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="31"
-	    anchor="system_info_process"/>  <!-- fullsweep_after -->
-      <name name="system_info" arity="1" clause_i="32"/>  <!-- garbage_collection -->
-      <name name="system_info" arity="1" clause_i="33"/>  <!-- heap_sizes -->
-      <name name="system_info" arity="1" clause_i="34"/>  <!-- heap_type -->
-      <name name="system_info" arity="1" clause_i="40"/>  <!-- max_heap_size -->
-      <name name="system_info" arity="1" clause_i="41"/>  <!-- message_queue_data -->
-      <name name="system_info" arity="1" clause_i="42"/>  <!-- min_heap_size -->
-      <name name="system_info" arity="1" clause_i="43"/>  <!-- min_bin_vheap_size -->
-      <name name="system_info" arity="1" clause_i="57"/>  <!-- procs -->
+	    anchor="system_info_process" since="?"/>  <!-- fullsweep_after -->
+      <name name="system_info" arity="1" clause_i="32" since=""/>  <!-- garbage_collection -->
+      <name name="system_info" arity="1" clause_i="33" since=""/>  <!-- heap_sizes -->
+      <name name="system_info" arity="1" clause_i="34" since=""/>  <!-- heap_type -->
+      <name name="system_info" arity="1" clause_i="40" since="?"/>  <!-- max_heap_size -->
+      <name name="system_info" arity="1" clause_i="41" since="?"/>  <!-- message_queue_data -->
+      <name name="system_info" arity="1" clause_i="42" since="?"/>  <!-- min_heap_size -->
+      <name name="system_info" arity="1" clause_i="43" since="?"/>  <!-- min_bin_vheap_size -->
+      <name name="system_info" arity="1" clause_i="57" since=""/>  <!-- procs -->
       <fsummary>Information about the default process heap settings.</fsummary>
       <type name="message_queue_data"/>
       <type name="max_heap_size"/>
@@ -8146,14 +8146,14 @@ ok
     </func>
 
     <func>
-      <name name="system_info" arity="1" clause_i="6" anchor="system_info_limits"/>   <!-- atom_count -->
-      <name name="system_info" arity="1" clause_i="7"/>   <!-- atom_limit -->
-      <name name="system_info" arity="1" clause_i="29"/>  <!-- ets_count -->
-      <name name="system_info" arity="1" clause_i="30"/>  <!-- ets_limit -->
-      <name name="system_info" arity="1" clause_i="53"/>  <!-- port_count -->
-      <name name="system_info" arity="1" clause_i="54"/>  <!-- port_limit -->
-      <name name="system_info" arity="1" clause_i="55"/>  <!-- process_count -->
-      <name name="system_info" arity="1" clause_i="56"/>  <!-- process_limit -->
+      <name name="system_info" arity="1" clause_i="6" anchor="system_info_limits" since="?"/>   <!-- atom_count -->
+      <name name="system_info" arity="1" clause_i="7" since="?"/>   <!-- atom_limit -->
+      <name name="system_info" arity="1" clause_i="29" since="?"/>  <!-- ets_count -->
+      <name name="system_info" arity="1" clause_i="30" since="?"/>  <!-- ets_limit -->
+      <name name="system_info" arity="1" clause_i="53" since="?"/>  <!-- port_count -->
+      <name name="system_info" arity="1" clause_i="54" since="?"/>  <!-- port_limit -->
+      <name name="system_info" arity="1" clause_i="55" since=""/>  <!-- process_count -->
+      <name name="system_info" arity="1" clause_i="56" since=""/>  <!-- process_limit -->
       <fsummary>Information about various system limits.</fsummary>
       <desc>
         <marker id="system_info_limits"/>
@@ -8227,14 +8227,14 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="26"
-	    anchor="system_info_time"/>  <!-- end_time -->
-      <name name="system_info" arity="1" clause_i="50"/>  <!-- os_monotonic_time_source -->
-      <name name="system_info" arity="1" clause_i="51"/>  <!-- os_system_time_source -->
-      <name name="system_info" arity="1" clause_i="63"/>  <!-- start_time -->
-      <name name="system_info" arity="1" clause_i="68"/>  <!-- time_correction -->
-      <name name="system_info" arity="1" clause_i="69"/>  <!-- time_offset -->
-      <name name="system_info" arity="1" clause_i="70"/>  <!-- time_warp_mode -->
-      <name name="system_info" arity="1" clause_i="71"/>  <!-- tolerant_timeofday -->
+	    anchor="system_info_time" since="OTP 18.0"/>  <!-- end_time -->
+      <name name="system_info" arity="1" clause_i="50" since="OTP 18.0"/>  <!-- os_monotonic_time_source -->
+      <name name="system_info" arity="1" clause_i="51" since="OTP 18.0"/>  <!-- os_system_time_source -->
+      <name name="system_info" arity="1" clause_i="63" since="OTP 18.0"/>  <!-- start_time -->
+      <name name="system_info" arity="1" clause_i="68" since="OTP 18.0"/>  <!-- time_correction -->
+      <name name="system_info" arity="1" clause_i="69" since="OTP 18.0"/>  <!-- time_offset -->
+      <name name="system_info" arity="1" clause_i="70" since="OTP 18.0"/>  <!-- time_warp_mode -->
+      <name name="system_info" arity="1" clause_i="71" since="?"/>  <!-- tolerant_timeofday -->
       <fsummary>Information about system time.</fsummary>
       <desc>
         <marker id="system_info_time_tags"/>
@@ -8455,19 +8455,19 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="17"
-	    anchor="system_info_scheduler"/>  <!-- dirty_cpu_schedulers -->
-      <name name="system_info" arity="1" clause_i="18"/>  <!-- dirty_cpu_schedulers_online -->
-      <name name="system_info" arity="1" clause_i="19"/>  <!-- dirty_io_schedulers -->
-      <name name="system_info" arity="1" clause_i="45"/>  <!-- multi_scheduling -->
-      <name name="system_info" arity="1" clause_i="46"/>  <!-- multi_scheduling_blockers -->
-      <name name="system_info" arity="1" clause_i="49"/>  <!-- normal_multi_scheduling_blockers -->
-      <name name="system_info" arity="1" clause_i="58"/>  <!-- scheduler_bind_type -->
-      <name name="system_info" arity="1" clause_i="59"/>  <!-- scheduler_bindings -->
-      <name name="system_info" arity="1" clause_i="60"/>  <!-- scheduler_id -->
-      <name name="system_info" arity="1" clause_i="61"/>  <!-- schedulers -->
-      <name name="system_info" arity="1" clause_i="62"/>  <!-- smp_support -->
-      <name name="system_info" arity="1" clause_i="66"/>  <!-- threads -->
-      <name name="system_info" arity="1" clause_i="67"/>  <!-- thread_pool_size -->
+	    anchor="system_info_scheduler" since="?"/>  <!-- dirty_cpu_schedulers -->
+      <name name="system_info" arity="1" clause_i="18" since="?"/>  <!-- dirty_cpu_schedulers_online -->
+      <name name="system_info" arity="1" clause_i="19" since="?"/>  <!-- dirty_io_schedulers -->
+      <name name="system_info" arity="1" clause_i="45" since=""/>  <!-- multi_scheduling -->
+      <name name="system_info" arity="1" clause_i="46" since=""/>  <!-- multi_scheduling_blockers -->
+      <name name="system_info" arity="1" clause_i="49" since="?"/>  <!-- normal_multi_scheduling_blockers -->
+      <name name="system_info" arity="1" clause_i="58" since=""/>  <!-- scheduler_bind_type -->
+      <name name="system_info" arity="1" clause_i="59" since=""/>  <!-- scheduler_bindings -->
+      <name name="system_info" arity="1" clause_i="60" since=""/>  <!-- scheduler_id -->
+      <name name="system_info" arity="1" clause_i="61" since=""/>  <!-- schedulers -->
+      <name name="system_info" arity="1" clause_i="62" since=""/>  <!-- smp_support -->
+      <name name="system_info" arity="1" clause_i="66" since=""/>  <!-- threads -->
+      <name name="system_info" arity="1" clause_i="67" since=""/>  <!-- thread_pool_size -->
       <fsummary>Information about system schedulers.</fsummary>
       <desc>
         <marker id="system_info_scheduler_tags"/>
@@ -8755,11 +8755,11 @@ ok
 
     <func>
       <name name="system_info" arity="1" clause_i="14"
-	    anchor="system_info_dist"/>  <!-- creation -->
-      <name name="system_info" arity="1" clause_i="16"/>  <!-- delayed_node_table_gc -->
-      <name name="system_info" arity="1" clause_i="20"/>  <!-- dist -->
-      <name name="system_info" arity="1" clause_i="21"/>  <!-- dist_buf_busy_limit -->
-      <name name="system_info" arity="1" clause_i="22"/>  <!-- dist_ctrl -->
+	    anchor="system_info_dist" since=""/>  <!-- creation -->
+      <name name="system_info" arity="1" clause_i="16" since="?"/>  <!-- delayed_node_table_gc -->
+      <name name="system_info" arity="1" clause_i="20" since=""/>  <!-- dist -->
+      <name name="system_info" arity="1" clause_i="21" since="?"/>  <!-- dist_buf_busy_limit -->
+      <name name="system_info" arity="1" clause_i="22" since=""/>  <!-- dist_ctrl -->
       <fsummary>Information about erlang distribution.</fsummary>
       <desc>
         <marker id="system_info_dist_tags"/>
@@ -8833,14 +8833,14 @@ ok
       <!-- <name name="system_info" arity="1" clause_i="6"/>   atom_count -->
       <!-- <name name="system_info" arity="1" clause_i="7"/>   atom_limit -->
       <name name="system_info" arity="1" clause_i="8"
-	    anchor="system_info_misc"/>   <!-- build_type -->
-      <name name="system_info" arity="1" clause_i="9"/>   <!-- c_compiler_used -->
-      <name name="system_info" arity="1" clause_i="10"/>  <!-- check_io -->
-      <name name="system_info" arity="1" clause_i="11"/>  <!-- compat_rel -->
+	    anchor="system_info_misc" since="?"/>   <!-- build_type -->
+      <name name="system_info" arity="1" clause_i="9" since=""/>   <!-- c_compiler_used -->
+      <name name="system_info" arity="1" clause_i="10" since=""/>  <!-- check_io -->
+      <name name="system_info" arity="1" clause_i="11" since=""/>  <!-- compat_rel -->
       <!-- <name name="system_info" arity="1" clause_i="12"/>  cpu_topology -->
       <!-- <name name="system_info" arity="1" clause_i="13"/>  {cpu_topology, _} -->
       <!-- <name name="system_info" arity="1" clause_i="14"/>  creation -->
-      <name name="system_info" arity="1" clause_i="15"/>  <!-- debug_compiled -->
+      <name name="system_info" arity="1" clause_i="15" since=""/>  <!-- debug_compiled -->
       <!-- <name name="system_info" arity="1" clause_i="16"/>  delayed_node_table_gc -->
       <!-- <name name="system_info" arity="1" clause_i="17"/>  dirty_cpu_schedulers -->
       <!-- <name name="system_info" arity="1" clause_i="18"/>  dirty_cpu_schedulers_online -->
@@ -8848,9 +8848,9 @@ ok
       <!-- <name name="system_info" arity="1" clause_i="20"/>  dist -->
       <!-- <name name="system_info" arity="1" clause_i="21"/>  dist_buf_busy_limit -->
       <!-- <name name="system_info" arity="1" clause_i="22"/>  dist_ctrl -->
-      <name name="system_info" arity="1" clause_i="23"/>  <!-- driver_version -->
-      <name name="system_info" arity="1" clause_i="24"/>  <!-- dynamic_trace -->
-      <name name="system_info" arity="1" clause_i="25"/>  <!-- dynamic_trace_probes -->
+      <name name="system_info" arity="1" clause_i="23" since=""/>  <!-- driver_version -->
+      <name name="system_info" arity="1" clause_i="24" since="?"/>  <!-- dynamic_trace -->
+      <name name="system_info" arity="1" clause_i="25" since="?"/>  <!-- dynamic_trace_probes -->
       <!-- <name name="system_info" arity="1" clause_i="26"/>  end_time -->
       <!-- <name name="system_info" arity="1" clause_i="27"/>  elib_malloc -->
       <!-- <name name="system_info" arity="1" clause_i="28"/>  eager_check_io, removed -->
@@ -8860,24 +8860,24 @@ ok
       <!-- <name name="system_info" arity="1" clause_i="32"/>  garbage_collection -->
       <!-- <name name="system_info" arity="1" clause_i="33"/>  heap_sizes -->
       <!-- <name name="system_info" arity="1" clause_i="34"/>  heap_type -->
-      <name name="system_info" arity="1" clause_i="35"/>  <!-- info -->
-      <name name="system_info" arity="1" clause_i="36"/>  <!-- kernel_poll -->
-      <name name="system_info" arity="1" clause_i="37"/>  <!-- loaded -->
+      <name name="system_info" arity="1" clause_i="35" since=""/>  <!-- info -->
+      <name name="system_info" arity="1" clause_i="36" since=""/>  <!-- kernel_poll -->
+      <name name="system_info" arity="1" clause_i="37" since=""/>  <!-- loaded -->
       <!-- <name name="system_info" arity="1" clause_i="38"/>  logical_processors -->
-      <name name="system_info" arity="1" clause_i="39"/>  <!-- machine -->
+      <name name="system_info" arity="1" clause_i="39" since=""/>  <!-- machine -->
       <!-- <name name="system_info" arity="1" clause_i="40"/>  max_heap_size -->
       <!-- <name name="system_info" arity="1" clause_i="41"/>  message_queue_data -->
       <!-- <name name="system_info" arity="1" clause_i="42"/>  min_heap_size -->
       <!-- <name name="system_info" arity="1" clause_i="43"/>  min_bin_vheap_size -->
-      <name name="system_info" arity="1" clause_i="44"/>  <!-- modified_timing_level -->
+      <name name="system_info" arity="1" clause_i="44" since=""/>  <!-- modified_timing_level -->
       <!-- <name name="system_info" arity="1" clause_i="45"/>  multi_scheduling -->
       <!-- <name name="system_info" arity="1" clause_i="46"/>  multi_scheduling_blockers -->
-      <name name="system_info" arity="1" clause_i="47"/>  <!-- nif_version -->
+      <name name="system_info" arity="1" clause_i="47" since="?"/>  <!-- nif_version -->
       <!-- n<name name="system_info" arity="1" clause_i="48"/>  ormal_multi_scheduling_blockers -->
-      <name name="system_info" arity="1" clause_i="49"/>  <!-- otp_release -->
+      <name name="system_info" arity="1" clause_i="49" since=""/>  <!-- otp_release -->
       <!-- <name name="system_info" arity="1" clause_i="50"/>  os_monotonic_time_source -->
       <!-- <name name="system_info" arity="1" clause_i="51"/>  os_system_time_source -->
-      <name name="system_info" arity="1" clause_i="52"/>  <!-- port_parallelism -->
+      <name name="system_info" arity="1" clause_i="52" since="?"/>  <!-- port_parallelism -->
       <!-- <name name="system_info" arity="1" clause_i="53"/>  port_count -->
       <!-- <name name="system_info" arity="1" clause_i="54"/>  port_limit -->
       <!-- <name name="system_info" arity="1" clause_i="55"/>  process_count -->
@@ -8889,18 +8889,18 @@ ok
       <!-- <name name="system_info" arity="1" clause_i="61"/>  schedulers -->
       <!-- <name name="system_info" arity="1" clause_i="62"/>  smp_support -->
       <!-- <name name="system_info" arity="1" clause_i="63"/>  start_time -->
-      <name name="system_info" arity="1" clause_i="64"/>  <!-- system_version -->
-      <name name="system_info" arity="1" clause_i="65"/>  <!-- system_architecture -->
+      <name name="system_info" arity="1" clause_i="64" since=""/>  <!-- system_version -->
+      <name name="system_info" arity="1" clause_i="65" since=""/>  <!-- system_architecture -->
       <!-- <name name="system_info" arity="1" clause_i="66"/>  threads -->
       <!-- <name name="system_info" arity="1" clause_i="67"/>  thread_pool_size -->
       <!-- <name name="system_info" arity="1" clause_i="68"/>  time_correction -->
       <!-- <name name="system_info" arity="1" clause_i="69"/>  time_offset -->
       <!-- <name name="system_info" arity="1" clause_i="70"/>  time_warp_mode -->
       <!-- <name name="system_info" arity="1" clause_i="71"/>  tolerant_timeofday -->
-      <name name="system_info" arity="1" clause_i="72"/>  <!-- trace_control_word -->
+      <name name="system_info" arity="1" clause_i="72" since=""/>  <!-- trace_control_word -->
       <!-- <name name="system_info" arity="1" clause_i="73"/>  update_cpu_info -->
-      <name name="system_info" arity="1" clause_i="74"/>  <!-- version -->
-      <name name="system_info" arity="1" clause_i="75"/>  <!-- wordsize -->
+      <name name="system_info" arity="1" clause_i="74" since=""/>  <!-- version -->
+      <name name="system_info" arity="1" clause_i="75" since=""/>  <!-- wordsize -->
       <!-- <name name="system_info" arity="1" clause_i="76"/>  overview -->
       <fsummary>Information about the system.</fsummary>
       <desc>
@@ -9110,7 +9110,7 @@ ok
     </func>
 
     <func>
-      <name name="system_monitor" arity="0"/>
+      <name name="system_monitor" arity="0" since=""/>
       <fsummary>Current system performance monitoring settings.</fsummary>
       <type name="system_monitor_option"/>
       <desc>
@@ -9124,7 +9124,7 @@ ok
     </func>
 
     <func>
-      <name name="system_monitor" arity="1"/>
+      <name name="system_monitor" arity="1" since=""/>
       <fsummary>Set or clear system performance monitoring options.</fsummary>
       <type name="system_monitor_option"/>
       <desc>
@@ -9142,7 +9142,7 @@ ok
     </func>
 
     <func>
-      <name name="system_monitor" arity="2"/>
+      <name name="system_monitor" arity="2" since=""/>
       <fsummary>Set system performance monitoring options.</fsummary>
       <type name="system_monitor_option"/>
       <desc>
@@ -9274,7 +9274,7 @@ ok
     </func>
 
     <func>
-      <name name="system_profile" arity="0"/>
+      <name name="system_profile" arity="0" since=""/>
       <fsummary>Current system profiling settings.</fsummary>
       <type name="system_profile_option"/>
       <desc>
@@ -9289,7 +9289,7 @@ ok
     </func>
 
     <func>
-      <name name="system_profile" arity="2"/>
+      <name name="system_profile" arity="2" since=""/>
       <fsummary>Current system profiling settings.</fsummary>
       <type name="system_profile_option"/>
       <desc>
@@ -9363,7 +9363,7 @@ ok
     </func>
 
     <func>
-      <name name="system_time" arity="0"/>
+      <name name="system_time" arity="0" since="OTP 18.0"/>
       <fsummary>Current Erlang system time.</fsummary>
       <desc>
         <p>Returns current
@@ -9385,7 +9385,7 @@ ok
     </func>
 
     <func>
-      <name name="system_time" arity="1"/>
+      <name name="system_time" arity="1" since="OTP 18.0"/>
       <fsummary>Current Erlang system time.</fsummary>
       <desc>
         <p>Returns current
@@ -9407,7 +9407,7 @@ ok
     </func>
 
     <func>
-      <name name="term_to_binary" arity="1"/>
+      <name name="term_to_binary" arity="1" since=""/>
       <fsummary>Encode a term to an Erlang external term format binary.
       </fsummary>
       <desc>
@@ -9435,7 +9435,7 @@ hello
     </func>
 
     <func>
-      <name name="term_to_binary" arity="2"/>
+      <name name="term_to_binary" arity="2" since=""/>
       <fsummary>Encode a term to en Erlang external term format binary.
       </fsummary>
       <desc>
@@ -9500,7 +9500,7 @@ hello
     </func>
 
     <func>
-      <name name="throw" arity="1"/>
+      <name name="throw" arity="1" since=""/>
       <fsummary>Throw an exception.</fsummary>
       <desc>
         <p>A non-local return from a function. If evaluated within a
@@ -9514,7 +9514,7 @@ hello
     </func>
 
     <func>
-      <name name="time" arity="0"/>
+      <name name="time" arity="0" since=""/>
       <fsummary>Current time.</fsummary>
       <desc>
         <p>Returns the current time as <c>{Hour, Minute, Second}</c>.</p>
@@ -9527,7 +9527,7 @@ hello
     </func>
 
     <func>
-      <name name="time_offset" arity="0"/>
+      <name name="time_offset" arity="0" since="OTP 18.0"/>
       <fsummary>Current time offset.</fsummary>
       <desc>
         <p>Returns the current time offset between
@@ -9559,7 +9559,7 @@ hello
     </func>
 
     <func>
-      <name name="time_offset" arity="1"/>
+      <name name="time_offset" arity="1" since="OTP 18.0"/>
       <fsummary>Current time offset.</fsummary>
       <desc>
         <p>Returns the current time offset between
@@ -9578,7 +9578,7 @@ hello
     </func>
 
     <func>
-      <name name="timestamp" arity="0"/>
+      <name name="timestamp" arity="0" since="OTP 18.0"/>
       <fsummary>Current Erlang System time.</fsummary>
       <type name="timestamp"/>
       <desc>
@@ -9617,7 +9617,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="tl" arity="1"/>
+      <name name="tl" arity="1" since=""/>
       <fsummary>Tail of a list.</fsummary>
       <desc>
         <p>Returns the tail of <c><anno>List</anno></c>, that is,
@@ -9632,7 +9632,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace" arity="3"/>
+      <name name="trace" arity="3" since=""/>
       <fsummary>Set trace flags for a process or processes.</fsummary>
       <type name="trace_flag"/>
       <desc>
@@ -10288,7 +10288,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_delivered" arity="1"/>
+      <name name="trace_delivered" arity="1" since=""/>
       <fsummary>Notification when trace has been delivered.</fsummary>
       <desc>
         <p>The delivery of trace messages (generated by
@@ -10343,7 +10343,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_info" arity="2"/>
+      <name name="trace_info" arity="2" since=""/>
       <fsummary>Trace information about a process or function.</fsummary>
       <type name="trace_info_return"/>
       <type name="trace_info_item_result"/>
@@ -10479,7 +10479,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_pattern" arity="2" clause_i="1"/>
+      <name name="trace_pattern" arity="2" clause_i="1" since=""/>
       <fsummary>Set trace patterns for call, send, or 'receive' tracing.
       </fsummary>
       <type name="trace_pattern_mfa"/>
@@ -10497,7 +10497,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_pattern" arity="3" clause_i="1"/>
+      <name name="trace_pattern" arity="3" clause_i="1" since="?"/>
       <fsummary>Set trace pattern for message sending.</fsummary>
       <type name="trace_match_spec"/>
       <type name="match_variable"/>
@@ -10568,7 +10568,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_pattern" arity="3" clause_i="2"/>
+      <name name="trace_pattern" arity="3" clause_i="2" since="?"/>
       <fsummary>Set trace pattern for tracing of message receiving.</fsummary>
       <type name="trace_match_spec"/>
       <type name="match_variable"/>
@@ -10640,7 +10640,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trace_pattern" arity="3" clause_i="3"/>
+      <name name="trace_pattern" arity="3" clause_i="3" since=""/>
       <fsummary>Set trace patterns for tracing of function calls.</fsummary>
       <type name="trace_pattern_mfa"/>
       <type name="trace_match_spec"/>
@@ -10831,7 +10831,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="trunc" arity="1"/>
+      <name name="trunc" arity="1" since=""/>
       <fsummary>Return an integer by truncating a number.</fsummary>
       <desc>
         <p>Returns an integer by truncating <c><anno>Number</anno></c>,
@@ -10844,7 +10844,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="tuple_size" arity="1"/>
+      <name name="tuple_size" arity="1" since=""/>
       <fsummary>Return the size of a tuple.</fsummary>
       <desc>
         <p>Returns an integer that is the number of elements in
@@ -10857,7 +10857,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="tuple_to_list" arity="1"/>
+      <name name="tuple_to_list" arity="1" since=""/>
       <fsummary>Convert a tuple to a list.</fsummary>
       <desc>
         <p>Returns a list corresponding to <c><anno>Tuple</anno></c>.
@@ -10870,7 +10870,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="unique_integer" arity="0"/>
+      <name name="unique_integer" arity="0" since="OTP 18.0"/>
       <fsummary>Get a unique integer value.</fsummary>
       <desc>
         <p>Generates and returns an
@@ -10883,7 +10883,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="unique_integer" arity="1"/>
+      <name name="unique_integer" arity="1" since="OTP 18.0"/>
       <fsummary>Get a unique integer value.</fsummary>
       <desc>
         <p>Generates and returns an
@@ -10965,7 +10965,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="universaltime" arity="0"/>
+      <name name="universaltime" arity="0" since=""/>
       <fsummary>Current date and time according to Universal Time Coordinated
         (UTC).</fsummary>
       <desc>
@@ -10982,7 +10982,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="universaltime_to_localtime" arity="1"/>
+      <name name="universaltime_to_localtime" arity="1" since=""/>
       <fsummary>Convert from Universal Time Coordinated (UTC) to local date
         and time.</fsummary>
       <desc>
@@ -11001,7 +11001,7 @@ timestamp() ->
     </func>
 
     <func>
-      <name name="unlink" arity="1"/>
+      <name name="unlink" arity="1" since=""/>
       <fsummary>Remove a link to another process or port.</fsummary>
       <desc>
         <p>Removes the link, if there is one, between the calling
@@ -11047,7 +11047,7 @@ end</code>
     </func>
 
     <func>
-      <name name="unregister" arity="1"/>
+      <name name="unregister" arity="1" since=""/>
       <fsummary>Remove the registered name for a process (or port).</fsummary>
       <desc>
         <p>Removes the registered name <c><anno>RegName</anno></c>
@@ -11063,7 +11063,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="whereis" arity="1"/>
+      <name name="whereis" arity="1" since=""/>
       <fsummary>Get the pid (or port) with a specified registered name.
       </fsummary>
       <desc>
@@ -11077,7 +11077,7 @@ true</pre>
     </func>
 
     <func>
-      <name name="yield" arity="0"/>
+      <name name="yield" arity="0" since=""/>
       <fsummary>Let other processes get a chance to execute.</fsummary>
       <desc>
         <p>Voluntarily lets other processes (if any) get a chance to
diff --git a/erts/doc/src/init.xml b/erts/doc/src/init.xml
index c14f0a558d..c824e37976 100644
--- a/erts/doc/src/init.xml
+++ b/erts/doc/src/init.xml
@@ -29,7 +29,7 @@
     <rev></rev>
     <file>init.xml</file>
   </header>
-  <module>init</module>
+  <module since="">init</module>
   <modulesummary>Coordination of system startup.</modulesummary>
   <description>
     <p>This module is preloaded and contains the code for
@@ -50,7 +50,7 @@
 
   <funcs>
     <func>
-      <name name="boot" arity="1"/>
+      <name name="boot" arity="1" since=""/>
       <fsummary>Start the Erlang runtime system.</fsummary>
       <desc>
         <p>Starts the Erlang runtime system. This function is called
@@ -69,7 +69,7 @@
     </func>
 
     <func>
-      <name name="get_argument" arity="1"/>
+      <name name="get_argument" arity="1" since=""/>
       <fsummary>Get the values associated with a command-line user flag.
       </fsummary>
       <desc>
@@ -112,7 +112,7 @@
     </func>
 
     <func>
-      <name name="get_arguments" arity="0"/>
+      <name name="get_arguments" arity="0" since=""/>
       <fsummary>Get all command-line user flags.</fsummary>
       <desc>
         <p>Returns all command-line flags and the system-defined flags, see
@@ -121,7 +121,7 @@
     </func>
 
     <func>
-      <name name="get_plain_arguments" arity="0"/>
+      <name name="get_plain_arguments" arity="0" since=""/>
       <fsummary>Get all non-flag command-line arguments.</fsummary>
       <desc>
         <p>Returns any plain command-line arguments as a list of strings
@@ -130,7 +130,7 @@
     </func>
 
     <func>
-      <name name="get_status" arity="0"/>
+      <name name="get_status" arity="0" since=""/>
       <fsummary>Get system status information.</fsummary>
       <type name="internal_status"/>
       <desc>
@@ -146,7 +146,7 @@
     </func>
 
     <func>
-      <name name="reboot" arity="0"/>
+      <name name="reboot" arity="0" since=""/>
       <fsummary>Take down and restart an Erlang node smoothly.</fsummary>
       <desc>
         <p>All applications are taken down smoothly, all code is
@@ -162,7 +162,7 @@
     </func>
 
     <func>
-      <name name="restart" arity="0"/>
+      <name name="restart" arity="0" since=""/>
       <fsummary>Restart the running Erlang node.</fsummary>
       <desc>
         <p>The system is restarted <em>inside</em> the running Erlang
@@ -178,7 +178,7 @@
     </func>
 
     <func>
-      <name name="script_id" arity="0"/>
+      <name name="script_id" arity="0" since=""/>
       <fsummary>Get the identity of the used boot script.</fsummary>
       <desc>
         <p>Gets the identity of the boot script used to boot the system.
@@ -189,7 +189,7 @@
     </func>
 
     <func>
-      <name name="stop" arity="0"/>
+      <name name="stop" arity="0" since=""/>
       <fsummary>Take down an Erlang node smoothly.</fsummary>
       <desc>
         <p>The same as
@@ -198,7 +198,7 @@
     </func>
 
     <func>
-      <name name="stop" arity="1"/>
+      <name name="stop" arity="1" since=""/>
       <fsummary>Take down an Erlang node smoothly.</fsummary>
       <desc>
         <p>All applications are taken down smoothly, all code is
diff --git a/erts/doc/src/persistent_term.xml b/erts/doc/src/persistent_term.xml
index 29a6c67051..1eda7f8d76 100644
--- a/erts/doc/src/persistent_term.xml
+++ b/erts/doc/src/persistent_term.xml
@@ -29,7 +29,7 @@
     <rev></rev>
     <file>persistent_term.xml</file>
   </header>
-  <module>persistent_term</module>
+  <module since="OTP 21.2">persistent_term</module>
   <modulesummary>Persistent terms.</modulesummary>
   <description>
     <p>This module is similar to <seealso
@@ -213,7 +213,7 @@ will be slower as the number of persistent terms increases.</pre>
 
   <funcs>
     <func>
-      <name name="erase" arity="1"/>
+      <name name="erase" arity="1" since="OTP 21.2"/>
       <fsummary>Erase the name for a persistent term.</fsummary>
       <desc>
         <p>Erase the name for the persistent term with key
@@ -229,7 +229,7 @@ will be slower as the number of persistent terms increases.</pre>
     </func>
 
     <func>
-      <name name="get" arity="0"/>
+      <name name="get" arity="0" since="OTP 21.2"/>
       <fsummary>Get all persistent terms.</fsummary>
       <desc>
         <p>Retrieve the keys and values for all persistent terms.
@@ -239,7 +239,7 @@ will be slower as the number of persistent terms increases.</pre>
     </func>
 
     <func>
-      <name name="get" arity="1"/>
+      <name name="get" arity="1" since="OTP 21.2"/>
       <fsummary>Get the value for a persistent term.</fsummary>
       <desc>
         <p>Retrieve the value for the persistent term associated with
@@ -256,7 +256,7 @@ will be slower as the number of persistent terms increases.</pre>
     </func>
 
     <func>
-      <name name="info" arity="0"/>
+      <name name="info" arity="0" since="OTP 21.2"/>
       <fsummary>Get information about persistent terms.</fsummary>
       <desc>
         <p>Return information about persistent terms in a map. The map
@@ -272,7 +272,7 @@ will be slower as the number of persistent terms increases.</pre>
     </func>
 
     <func>
-      <name name="put" arity="2"/>
+      <name name="put" arity="2" since="OTP 21.2"/>
       <fsummary>Store a term.</fsummary>
       <desc>
         <p>Store the value <c><anno>Value</anno></c> as a persistent term and
diff --git a/erts/doc/src/zlib.xml b/erts/doc/src/zlib.xml
index 6f4c42da27..38229456c9 100644
--- a/erts/doc/src/zlib.xml
+++ b/erts/doc/src/zlib.xml
@@ -29,7 +29,7 @@
     <rev></rev>
     <file>zlib.xml</file>
   </header>
-  <module>zlib</module>
+  <module since="">zlib</module>
   <modulesummary>zlib compression interface.</modulesummary>
   <description>
     <p>This module provides an API for the zlib library
@@ -120,7 +120,7 @@ list_to_binary([Compressed|Last])</pre>
 
   <funcs>
     <func>
-      <name name="adler32" arity="2"/>
+      <name name="adler32" arity="2" since=""/>
       <fsummary>Calculate the Adler checksum.</fsummary>
       <desc>
         <p>Calculates the Adler-32 checksum for <c><anno>Data</anno></c>.</p>
@@ -133,7 +133,7 @@ list_to_binary([Compressed|Last])</pre>
     </func>
 
     <func>
-      <name name="adler32" arity="3"/>
+      <name name="adler32" arity="3" since=""/>
       <fsummary>Calculate the Adler checksum.</fsummary>
       <desc>
         <p>Updates a running Adler-32 checksum for <c><anno>Data</anno></c>.
@@ -153,7 +153,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="adler32_combine" arity="4"/>
+      <name name="adler32_combine" arity="4" since=""/>
       <fsummary>Combine two Adler-32 checksums.</fsummary>
       <desc>
         <p>Combines two Adler-32 checksums into one. For two binaries or
@@ -172,7 +172,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="close" arity="1"/>
+      <name name="close" arity="1" since=""/>
       <fsummary>Close a stream.</fsummary>
       <desc>
         <p>Closes the stream referenced by <c><anno>Z</anno></c>.</p>
@@ -180,7 +180,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="compress" arity="1"/>
+      <name name="compress" arity="1" since=""/>
       <fsummary>Compress data with standard zlib functionality.</fsummary>
       <desc>
         <p>Compresses data with zlib headers and checksum.</p>
@@ -188,7 +188,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="crc32" arity="1"/>
+      <name name="crc32" arity="1" since=""/>
       <fsummary>Get current CRC.</fsummary>
       <desc>
         <p>Gets the current calculated CRC checksum.</p>
@@ -202,7 +202,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="crc32" arity="2"/>
+      <name name="crc32" arity="2" since=""/>
       <fsummary>Calculate CRC.</fsummary>
       <desc>
         <p>Calculates the CRC checksum for <c><anno>Data</anno></c>.</p>
@@ -215,7 +215,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="crc32" arity="3"/>
+      <name name="crc32" arity="3" since=""/>
       <fsummary>Calculate CRC.</fsummary>
       <desc>
         <p>Updates a running CRC checksum for <c><anno>Data</anno></c>.
@@ -235,7 +235,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="crc32_combine" arity="4"/>
+      <name name="crc32_combine" arity="4" since=""/>
       <fsummary>Combine two CRCs.</fsummary>
       <desc>
         <p>Combines two CRC checksums into one. For two binaries or iolists,
@@ -254,7 +254,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="deflate" arity="2"/>
+      <name name="deflate" arity="2" since=""/>
       <fsummary>Compress data.</fsummary>
       <desc>
         <p>Same as <c>deflate(<anno>Z</anno>, <anno>Data</anno>, none)</c>.</p>
@@ -262,7 +262,7 @@ Crc = lists:foldl(fun(Data,Crc0) ->
     </func>
 
     <func>
-      <name name="deflate" arity="3"/>
+      <name name="deflate" arity="3" since=""/>
       <fsummary>Compress data.</fsummary>
       <desc>
         <p>Compresses as much data as possible, and
@@ -300,7 +300,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateEnd" arity="1"/>
+      <name name="deflateEnd" arity="1" since=""/>
       <fsummary>End deflate session.</fsummary>
       <desc>
         <p>Ends the deflate session and cleans all data used. Notice that this
@@ -311,7 +311,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateInit" arity="1"/>
+      <name name="deflateInit" arity="1" since=""/>
       <fsummary>Initialize a session for compression.</fsummary>
       <desc>
         <p>Same as <c>zlib:deflateInit(<anno>Z</anno>, default)</c>.</p>
@@ -319,7 +319,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateInit" arity="2"/>
+      <name name="deflateInit" arity="2" since=""/>
       <fsummary>Initialize a session for compression.</fsummary>
       <desc>
         <p>Initializes a zlib stream for compression.</p>
@@ -334,7 +334,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateInit" arity="6"/>
+      <name name="deflateInit" arity="6" since=""/>
       <fsummary>Initialize a session for compression.</fsummary>
       <desc>
         <p>Initiates a zlib stream for compression.</p>
@@ -410,7 +410,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateParams" arity="3"/>
+      <name name="deflateParams" arity="3" since=""/>
       <fsummary>Dynamicly update deflate parameters.</fsummary>
       <desc>
         <p>Dynamically updates the compression level and compression
@@ -432,7 +432,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateReset" arity="1"/>
+      <name name="deflateReset" arity="1" since=""/>
       <fsummary>Reset the deflate session.</fsummary>
       <desc>
         <p>Equivalent to
@@ -446,7 +446,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="deflateSetDictionary" arity="2"/>
+      <name name="deflateSetDictionary" arity="2" since=""/>
       <fsummary>Initialize the compression dictionary.</fsummary>
       <desc>
         <p>Initializes the compression dictionary from the specified byte
@@ -464,7 +464,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="getBufSize" arity="1"/>
+      <name name="getBufSize" arity="1" since=""/>
       <fsummary>Get buffer size.</fsummary>
       <desc>
         <p>Gets the size of the intermediate buffer.</p>
@@ -476,7 +476,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="gunzip" arity="1"/>
+      <name name="gunzip" arity="1" since=""/>
       <fsummary>Uncompress data with gz header.</fsummary>
       <desc>
         <p>Uncompresses data with gz headers and checksum.</p>
@@ -484,7 +484,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="gzip" arity="1"/>
+      <name name="gzip" arity="1" since=""/>
       <fsummary>Compress data with gz header.</fsummary>
       <desc>
         <p>Compresses data with gz headers and checksum.</p>
@@ -492,7 +492,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="inflate" arity="2"/>
+      <name name="inflate" arity="2" since=""/>
       <fsummary>Decompress data.</fsummary>
       <desc>
         <p>Equivalent to
@@ -502,7 +502,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="inflate" arity="3"/>
+      <name name="inflate" arity="3" since="OTP 20.1"/>
       <fsummary>Decompress data.</fsummary>
       <desc>
         <p>Decompresses as much data as possible. It can introduce some output
@@ -524,7 +524,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="inflateChunk" arity="1"/>
+      <name name="inflateChunk" arity="1" since="OTP 18.0"/>
       <fsummary>Read next uncompressed chunk.</fsummary>
       <desc>
         <warning>
@@ -540,7 +540,7 @@ list_to_binary([B1,B2])</pre>
     </func>
 
     <func>
-      <name name="inflateChunk" arity="2"/>
+      <name name="inflateChunk" arity="2" since="OTP 18.0"/>
       <fsummary>Decompress data with limited output size.</fsummary>
       <desc>
         <warning>
@@ -584,7 +584,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateEnd" arity="1"/>
+      <name name="inflateEnd" arity="1" since=""/>
       <fsummary>End inflate session.</fsummary>
       <desc>
         <p>Ends the inflate session and cleans all data used. Notice
@@ -595,7 +595,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateGetDictionary" arity="1"/>
+      <name name="inflateGetDictionary" arity="1" since="OTP 20.0"/>
       <fsummary>Return the decompression dictionary.</fsummary>
       <desc>
         <p>Returns the decompression dictionary currently in use
@@ -607,7 +607,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateInit" arity="1"/>
+      <name name="inflateInit" arity="1" since=""/>
       <fsummary>Initialize a session for decompression.</fsummary>
       <desc>
         <p>Initializes a zlib stream for decompression.</p>
@@ -615,7 +615,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateInit" arity="2"/>
+      <name name="inflateInit" arity="2" since=""/>
       <fsummary>Initialize a session for decompression.</fsummary>
       <desc>
         <p>Initializes a decompression session on zlib stream.</p>
@@ -634,7 +634,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateReset" arity="1"/>
+      <name name="inflateReset" arity="1" since=""/>
       <fsummary>>Reset the inflate session.</fsummary>
       <desc>
         <p>Equivalent to
@@ -648,7 +648,7 @@ loop(Z, Handler, Uncompressed) ->
     </func>
 
     <func>
-      <name name="inflateSetDictionary" arity="2"/>
+      <name name="inflateSetDictionary" arity="2" since=""/>
       <fsummary>Initialize the decompression dictionary.</fsummary>
       <desc>
         <p>Initializes the decompression dictionary from the specified
@@ -688,7 +688,7 @@ new_unpack(Z, Compressed, Dict) ->
     </func>
 
     <func>
-      <name name="open" arity="0"/>
+      <name name="open" arity="0" since=""/>
       <fsummary>Open a stream and return a stream reference.</fsummary>
       <desc>
         <p>Opens a zlib stream.</p>
@@ -696,7 +696,7 @@ new_unpack(Z, Compressed, Dict) ->
     </func>
 
     <func>
-      <name name="safeInflate" arity="2"/>
+      <name name="safeInflate" arity="2" since="OTP 20.1"/>
       <fsummary>Decompress data with limited output size.</fsummary>
       <desc>
         <p>Like <seealso marker="#inflate/2"><c>inflate/2</c></seealso>,
@@ -733,7 +733,7 @@ loop(Z, Handler, {finished, Output}) ->
     </func>
 
     <func>
-      <name name="setBufSize" arity="2"/>
+      <name name="setBufSize" arity="2" since=""/>
       <fsummary>Set buffer size.</fsummary>
       <desc>
         <p>Sets the intermediate buffer size.</p>
@@ -745,7 +745,7 @@ loop(Z, Handler, {finished, Output}) ->
     </func>
 
     <func>
-      <name name="set_controlling_process" arity="2"/>
+      <name name="set_controlling_process" arity="2" since="OTP 20.1.3"/>
       <fsummary>Transfers ownership of a zlib stream.</fsummary>
       <desc>
         <p>Changes the controlling process of <c><anno>Z</anno></c> to
@@ -754,7 +754,7 @@ loop(Z, Handler, {finished, Output}) ->
     </func>
 
     <func>
-      <name name="uncompress" arity="1"/>
+      <name name="uncompress" arity="1" since=""/>
       <fsummary>Uncompress data with standard zlib functionality.</fsummary>
       <desc>
         <p>Uncompresses data with zlib headers and checksum.</p>
@@ -762,7 +762,7 @@ loop(Z, Handler, {finished, Output}) ->
     </func>
 
     <func>
-      <name name="unzip" arity="1"/>
+      <name name="unzip" arity="1" since=""/>
       <fsummary>Uncompress data without the zlib headers.</fsummary>
       <desc>
         <p>Uncompresses data without zlib headers and checksum.</p>
@@ -770,7 +770,7 @@ loop(Z, Handler, {finished, Output}) ->
     </func>
 
     <func>
-      <name name="zip" arity="1"/>
+      <name name="zip" arity="1" since=""/>
       <fsummary>Compress data without the zlib headers.</fsummary>
       <desc>
         <p>Compresses data without zlib headers and checksum.</p>