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authorErlang/OTP <[email protected]>2018-04-30 10:06:42 +0200
committerErlang/OTP <[email protected]>2018-04-30 10:06:42 +0200
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Update release notes
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</header>
<p>This document describes the changes made to the Kernel application.</p>
+<section><title>Kernel 6.0</title>
+
+ <section><title>Fixed Bugs and Malfunctions</title>
+ <list>
+ <item>
+ <p> Clarify the documentation of <c>rpc:multicall/5</c>.
+ </p>
+ <p>
+ Own Id: OTP-10551</p>
+ </item>
+ <item>
+ <p>
+ The DNS resolver when getting econnrefused from a server
+ retained an invalid socket so look up towards the next
+ server(s) also failed.</p>
+ <p>
+ Own Id: OTP-13133 Aux Id: PR-1557 </p>
+ </item>
+ <item>
+ <p>
+ No resolver backend returns V4Mapped IPv6 addresses any
+ more. This was inconsistent before, some did, some did
+ not. To facilitate working with such addresses a new
+ function <c>inet:ipv4_mapped_ipv6_address/1</c> has been
+ added.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-13761 Aux Id: ERL-503 </p>
+ </item>
+ <item>
+ <p>
+ The type specifications for <c>file:posix/0</c> and
+ <c>inet:posix/0</c> have been updated according to which
+ errors file and socket operations should be able to
+ return.</p>
+ <p>
+ Own Id: OTP-14019 Aux Id: ERL-550 </p>
+ </item>
+ <item>
+ <p>
+ Fix name resolving in IPv6 only environments when doing
+ the initial distributed connection.</p>
+ <p>
+ Own Id: OTP-14501</p>
+ </item>
+ <item>
+ <p> File operations used to accept <seealso
+ marker="kernel:file#type-name_all">filenames</seealso>
+ containing null characters (integer value zero). This
+ caused the name to be truncated and in some cases
+ arguments to primitive operations to be mixed up.
+ Filenames containing null characters inside the filename
+ are now <em>rejected</em> and will cause primitive file
+ operations to fail. </p> <p> Also environment variable
+ operations used to accept <seealso
+ marker="kernel:os#type-env_var_name">names</seealso> and
+ <seealso
+ marker="kernel:os#type-env_var_value">values</seealso> of
+ environment variables containing null characters (integer
+ value zero). This caused operations to silently produce
+ erroneous results. Environment variable names and values
+ containing null characters inside the name or value are
+ now <em>rejected</em> and will cause environment variable
+ operations to fail. </p> <p>Primitive environment
+ variable operations also used to accept the <c>$=</c>
+ character in environment variable names causing various
+ problems. <c>$=</c> characters in environment variable
+ names are now also <em>rejected</em>. </p> <p>Also
+ <seealso
+ marker="kernel:os#cmd/1"><c>os:cmd/1</c></seealso> now
+ reject null characters inside its <seealso
+ marker="kernel:os#type-os_command">command</seealso>.
+ </p> <p><seealso
+ marker="erts:erlang#open_port/2"><c>erlang:open_port/2</c></seealso>
+ will also reject null characters inside the port name
+ from now on.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-14543 Aux Id: ERL-370 </p>
+ </item>
+ <item>
+ <p><c>os:putenv</c> and <c>os:getenv</c> no longer access
+ the process environment directly and instead work on a
+ thread-safe emulation. The only observable difference is
+ that it's <em>not</em> kept in sync with libc
+ <c>getenv(3)</c> / <c>putenv(3)</c>, so those who relied
+ on that behavior in drivers or NIFs will need to add
+ manual synchronization.</p> <p>On Windows this means that
+ you can no longer resolve DLL dependencies by modifying
+ the <c>PATH</c> just before loading the driver/NIF. To
+ make this less of a problem, the emulator now adds the
+ target DLL's folder to the DLL search path.</p>
+ <p>
+ *** POTENTIAL INCOMPATIBILITY ***</p>
+ <p>
+ Own Id: OTP-14666</p>
+ </item>
+ <item>
+ <p>
+ Fixed connection tick toward primitive hidden nodes
+ (erl_interface) that could cause faulty tick timeout in
+ rare cases when payload data is sent to hidden node but
+ not received.</p>
+ <p>
+ Own Id: OTP-14681</p>
+ </item>
+ <item>
+ <p>
+ Make group react immediately on an EXIT-signal from shell
+ in e.g ssh.</p>
+ <p>
+ Own Id: OTP-14991 Aux Id: PR1705 </p>
+ </item>
+ <item>
+ <p>
+ Calls to gen_tcp:send/2 on closed sockets now returns
+ <c>{error, closed}</c> instead of
+ <c>{error,enotconn}</c>.</p>
+ <p>
+ Own Id: OTP-15001</p>
+ </item>
+ </list>
+ </section>
+
+
+ <section><title>Improvements and New Features</title>
+ <list>
+ <item>
+ <p>
+ A new logging API is added to OTP. This is implemented in
+ the Kernel application, module logger.</p>
+ <p>
+ Legacy calls to error_logger will be automatically
+ redirected to the new API.</p>
+ <p>
+ See the reference manual for module logger, and the
+ User's Guide for the Kernel application for more
+ information.</p>
+ <p>
+ Own Id: OTP-13295</p>
+ </item>
+ <item>
+ <p>
+ The function <c>inet:i/0</c> has been documented.</p>
+ <p>
+ Own Id: OTP-13713 Aux Id: PR-1645 </p>
+ </item>
+ <item>
+ <p>
+ New functionality for implementation of alternative
+ carriers for the Erlang distribution has been introduced.
+ This mainly consists of support for usage of distribution
+ controller processes (previously only ports could be used
+ as distribution controllers). For more information see
+ <seealso marker="erts:alt_dist#distribution_module">ERTS
+ User's Guide ➜ How to implement an Alternative Carrier
+ for the Erlang Distribution ➜ Distribution
+ Module</seealso>.</p>
+ <p>
+ Own Id: OTP-14459</p>
+ </item>
+ <item>
+ <p><c>seq_trace</c> labels may now be any erlang
+ term.</p>
+ <p>
+ Own Id: OTP-14899</p>
+ </item>
+ <item>
+ <p>
+ The SSL distribution protocol <c>-proto inet_tls</c> has
+ stopped setting the SSL option
+ <c>server_name_indication</c>. New verify funs for client
+ and server in <c>inet_tls_dist</c> has been added, not
+ documented yet, that checks node name if present in peer
+ certificate. Usage is still also yet to be documented.</p>
+ <p>
+ Own Id: OTP-14969 Aux Id: OTP-14465, ERL-598 </p>
+ </item>
+ <item>
+ <p>
+ Changed timeout of <c>gen_server</c> calls to <c>auth</c>
+ server from default 5 seconds to <c>infinity</c>.</p>
+ <p>
+ Own Id: OTP-15009 Aux Id: ERL-601 </p>
+ </item>
+ </list>
+ </section>
+
+</section>
+
<section><title>Kernel 5.4.3</title>
<section><title>Fixed Bugs and Malfunctions</title>