diff options
Diffstat (limited to 'system/doc/general_info/deprecations.xml')
| -rw-r--r-- | system/doc/general_info/deprecations.xml | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/system/doc/general_info/deprecations.xml b/system/doc/general_info/deprecations.xml new file mode 100644 index 0000000000..c748e60059 --- /dev/null +++ b/system/doc/general_info/deprecations.xml @@ -0,0 +1,98 @@ +<?xml version="1.0" encoding="utf-8" ?> +<!DOCTYPE chapter SYSTEM "chapter.dtd"> + +<chapter> + <header> + <copyright> + <year>2019</year> + <holder>Ericsson AB. All Rights Reserved.</holder> + </copyright> + <legalnotice> + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. + + </legalnotice> + + <title>Deprecations</title> + <prepared></prepared> + <docno></docno> + <date></date> + <rev></rev> + <file>deprecations.xml</file> + </header> + <section> + <title>Introduction</title> + <p>This document aim to list all deprecated functionality in Erlang/OTP. It + was introduced as of OTP 22, and have not yet been updated with all old + deprecations. Deprecations made in other parts of the documentation are of + course still valid. For more information regarding the strategy regarding + deprecations see the documentation of + <seealso marker="../system_principles/misc#deprecation">Support, Compatibility, + Deprecations, and Removal</seealso>.</p> + </section> + <section> + <marker id="OTP-22"/> + <title>OTP 22</title> + <section> + <title>VxWorks Support</title> + <p>Some parts of OTP has had limited VxWorks support, such as for + example <seealso marker="erl_interface:index"><c>erl_interface</c></seealso>. + This support is now deprecated and has also been + <seealso marker="scheduled_for_removal#OTP-23">scheduled for removal</seealso>.</p> + </section> + <section> + <title>Legacy parts of erl_interface</title> + <p>The old legacy <seealso marker="erl_interface:index"><c>erl_interface</c></seealso> + library (functions with prefix <c>erl_</c>) is deprecated as of OTP 22. These + parts of <c>erl_interface</c> has been informally deprecated + for a very long time. You typically want to replace the usage of + the <c>erl_interface</c> library with the use of the <c>ei</c> library + which also is part of the <c>erl_interface</c> application. The old legacy + <seealso marker="erl_interface:index"><c>erl_interface</c></seealso> + library has also been <seealso marker="scheduled_for_removal#OTP-23">scheduled + for removal</seealso>.</p> + </section> + <section> + <title>System Events</title> + <p> + The format of "System Events" as defined in the man page for + <seealso marker="stdlib:sys">sys</seealso> + has been clarified and cleaned up. + Due to this, code that relied on the internal badly + documented previous (before this change) format + of OTP's "System Events", needs to be changed. + </p> + <p> + In the wake of this the function + <seealso marker="stdlib:sys#get_debug/3">sys:get_debug/3</seealso> + that returns data with undocumented and internal format + (and therefore is practically useless) has been deprecated, + and a new function + <seealso marker="stdlib:sys#get_log/1">sys:get_log/1</seealso> + has been added, + that hopefully does what the deprecated function was intended for. + </p> + </section> + </section> + <section> + <marker id="OTP-18"/> + <title>OTP 18</title> + <section> + <title>erlang:now()</title> + <p>New time functionality and a new time API was introduced. For more information + see the <seealso marker="erts:time_correction">Time and Time Correction</seealso> + chapter in the ERTS User's guide and specifically the + <seealso marker="erts:time_correction#Dos_and_Donts">Dos and Donts</seealso> + section on how to replace usage of <c>erlang:now()</c>.</p> + </section> + </section> +</chapter> |