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Diffstat (limited to 'lib/stdlib/doc/src/notes.xml')
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diff --git a/lib/stdlib/doc/src/notes.xml b/lib/stdlib/doc/src/notes.xml index ea90482b25..23c3f6e981 100644 --- a/lib/stdlib/doc/src/notes.xml +++ b/lib/stdlib/doc/src/notes.xml @@ -31,142 +31,6 @@ </header> <p>This document describes the changes made to the STDLIB application.</p> -<section><title>STDLIB 3.9</title> - - <section><title>Fixed Bugs and Malfunctions</title> - <list> - <item> - <p> Fix a bug in <c>string:lexemes/2</c>. </p> <p> The - bug was found when optimizing the handling of deep lists - of Unicode characters in the <c>string</c> module. </p> - <p> - Own Id: OTP-15649</p> - </item> - </list> - </section> - - - <section><title>Improvements and New Features</title> - <list> - <item> - <p> A new <c>rand</c> module algorithm, <c>exro928ss</c> - (Xoroshiro928**), has been implemented. It has got a - really long period and good statistical quality for all - output bits, while still being only about 50% slower than - the default algorithm. </p><p> The same generator is also - used as a long period counter in a new <c>crypto</c> - plugin for the <c>rand</c> module, algorithm - <c>crypto_aes</c>. This plugin uses AES-256 to scramble - the counter which buries any detectable statistical - artifacts. Scrambling is done in chunks which are cached - to get good amortized speed (about half of the default - algorithm). </p> - <p> - Own Id: OTP-14461 Aux Id: PR-1857 </p> - </item> - <item> - <p> - Types related to server naming and starting have been - exported from <c>gen_statem</c>. These are: - <c>server_name/0</c>, <c>server_ref/0</c>, - <c>start_opt/0</c>, <c>start_ret/0</c> and - <c>enter_loop_opt/0</c>.</p> - <p> - Own Id: OTP-14724 Aux Id: PR-2056 </p> - </item> - <item> - <p> - The default algorithm for the <c>rand</c> module has been - changed to <c>exsss</c> (Xorshift116**) which is a - combination of the Xorshift116 (<c>exsp</c>) state update - and a new scrambler "StarStar" from the 2018 paper - "Scrambled Linear Pseudorandom Number Generators" by - David Blackman and Sebastiano Vigna. This combination - should not have the caveat of weak low bits that the - previous default algorithm(s) have had, with the cost of - about 10% lower speed. See GitHub pull request #1969.</p> - <p> - Own Id: OTP-14731 Aux Id: PR-1969 </p> - </item> - <item> - <p> - The generic state machine behaviour <c>gen_statem</c> has - gotten code cleanup and documentation improvements from - GitHub Pull Request #1855, even though the PR itself was - rejected.</p> - <p> - Own Id: OTP-14737 Aux Id: PR-1855 </p> - </item> - <item> - <p> - Update Unicode specification to version 11.0.</p> - <p> - Own Id: OTP-15111</p> - </item> - <item> - <p> - ETS option <c>write_concurrency</c> now also affects and - improves the scalability of <c>ordered_set</c> tables. - The implementation is based on a data structure called - contention adapting search tree, where the lock - granularity adapts to the actual amount of concurrency - exploited by the applications in runtime.</p> - <p> - Own Id: OTP-15128</p> - </item> - <item> - <p> - Optimized <c>maps:new/0</c> with trivial Erlang - implementation, making use of literal terms (the empty - map) not needing dynamic heap allocation.</p> - <p> - Own Id: OTP-15200 Aux Id: PR-1878 </p> - </item> - <item> - <p>The <c>gen_*</c> behaviours have been changed so that - if logging of the last N messages through - <c>sys:log/2,3</c> is active for the server, this log is - included in the terminate report.</p> <p>To accomplish - this the format of "System Events" as defined in the man - page for <c>sys</c> has been clarified and cleaned up, a - new function <c>sys:get_log/1</c> has been added, and - <c>sys:get_debug/3</c> has been deprecated. Due to these - changes, code that relies on the internal badly - documented format of "System Events", need to be - corrected.</p> - <p> - *** POTENTIAL INCOMPATIBILITY ***</p> - <p> - Own Id: OTP-15381</p> - </item> - <item> - <p> - The <c>gen_statem</c> behaviour engine loop has been - optimized for better performance in particular when the - callback module returns some actions, that is better - performance for more realistic applications than the Echo - Benchmark.</p> - <p> - Own Id: OTP-15452</p> - </item> - <item> - <p> Use <c>ssh</c> instead of <c>rsh</c> as the default - remote shell. </p> - <p> - Own Id: OTP-15633 Aux Id: PR-1787 </p> - </item> - <item> - <p>Added <c>beam_lib:strip/2</c> and friends, which - accept a list of chunks that should be preserved when - stripping.</p> - <p> - Own Id: OTP-15680 Aux Id: PR-2114 </p> - </item> - </list> - </section> - -</section> - <section><title>STDLIB 3.8</title> <section><title>Fixed Bugs and Malfunctions</title> |