perldelta - what is new for perl v5.41.1

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This is a development version of Perl. </div> <h1><a id="toc">CONTENTS</a></h1> <ul> <li> <a class="text-decoration-none" href="#NAME">NAME</a> </li> <li> <a class="text-decoration-none" href="#DESCRIPTION">DESCRIPTION</a> </li> <li> <a class="text-decoration-none" href="#Core-Enhancements">Core Enhancements</a> <ul> <li> <a class="text-decoration-none" href="#More-CORE::-subs">More CORE:: subs</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Performance-Enhancements">Performance Enhancements</a> </li> <li> <a class="text-decoration-none" href="#Modules-and-Pragmata">Modules and Pragmata</a> <ul> <li> <a class="text-decoration-none" href="#Updated-Modules-and-Pragmata">Updated Modules and Pragmata</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Documentation">Documentation</a> <ul> <li> <a class="text-decoration-none" href="#Changes-to-Existing-Documentation">Changes to Existing Documentation</a> <ul> <li> <a class="text-decoration-none" href="#perlapi">perlapi</a> </li> <li> <a class="text-decoration-none" href="#perlfunc">perlfunc</a> </li> <li> <a class="text-decoration-none" href="#perlguts">perlguts</a> </li> </ul> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Testing">Testing</a> </li> <li> <a class="text-decoration-none" href="#Internal-Changes">Internal Changes</a> </li> <li> <a class="text-decoration-none" href="#Selected-Bug-Fixes">Selected Bug Fixes</a> </li> <li> <a class="text-decoration-none" href="#Acknowledgements">Acknowledgements</a> </li> <li> <a class="text-decoration-none" href="#Reporting-Bugs">Reporting Bugs</a> </li> <li> <a class="text-decoration-none" href="#Give-Thanks">Give Thanks</a> </li> <li> <a class="text-decoration-none" href="#SEE-ALSO">SEE ALSO</a> </li> </ul> <h1 id="NAME"><a class="permalink" href="#NAME">#</a>NAME</h1> <p>perldelta - what is new for perl v5.41.1</p> <h1 id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">#</a>DESCRIPTION</h1> <p>This document describes differences between the 5.41.0 release and the 5.41.1 release.</p> <p>If you are upgrading from an earlier release such as 5.40.0, first read <a href="/5.41.1/perl5410delta">perl5410delta</a>, which describes differences between 5.40.0 and 5.41.0.</p> <h1 id="Core-Enhancements"><a class="permalink" href="#Core-Enhancements">#</a><a id="Core"></a>Core Enhancements</h1> <h2 id="More-CORE::-subs"><a class="permalink" href="#More-CORE::-subs">#</a><a id="More"></a>More CORE:: subs</h2> <p><code>chdir</code> has been added as a subroutine to the CORE:: namespace.</p> <p>Previously, code like <code>&CORE::chdir($dir)</code> or <code>my $ref = \&CORE::chdir; $ref->($dir)</code> would throw an error saying <code>&CORE::chdir cannot be called directly</code>. These cases are now fully supported.</p> <h1 id="Performance-Enhancements"><a class="permalink" href="#Performance-Enhancements">#</a><a id="Performance"></a>Performance Enhancements</h1> <ul> <li><p>Various optimizations related to handling of <code>CONST</code>s.</p> </li> <li><p><code>Perl_leave_adjust_stacks</code>: additional efficiency for mortal copies.</p> </li> </ul> <h1 id="Modules-and-Pragmata"><a class="permalink" href="#Modules-and-Pragmata">#</a><a id="Modules"></a>Modules and Pragmata</h1> <h2 id="Updated-Modules-and-Pragmata"><a class="permalink" href="#Updated-Modules-and-Pragmata">#</a><a id="Updated"></a>Updated Modules and Pragmata</h2> <ul> <li><p><a href="/5.41.1/builtin">builtin</a> has been upgraded from version 0.014 to 0.015.</p> <p>Documented when each <a href="/5.41.1/builtin">builtin</a> function was first available and stabilized.</p> </li> <li><p><a href="/5.41.1/Data::Dumper">Data::Dumper</a> has been upgraded from version 2.189 to 2.190.</p> </li> <li><p><a href="/5.41.1/ExtUtils::ParseXS">ExtUtils::ParseXS</a> has been upgraded from version 3.51 to 3.52.</p> </li> <li><p><a href="/5.41.1/Fcntl">Fcntl</a> has been upgraded from version 1.18 to 1.19.</p> <p>Removed pointless <code>S_ISENFMT</code> function.</p> </li> <li><p><a href="/5.41.1/Getopt::Long">Getopt::Long</a> has been upgraded from version 2.57 to 2.58.</p> </li> <li><p><a href="/5.41.1/Math::BigInt">Math::BigInt</a> has been upgraded from version 2.003002 to 2.003003.</p> </li> <li><p><a href="/5.41.1/Module::CoreList">Module::CoreList</a> has been upgraded from version 5.20240610 to 5.20240620.</p> </li> <li><p><a href="/5.41.1/POSIX">POSIX</a> has been upgraded from version 2.20 to 2.21.</p> </li> <li><p><a href="/5.41.1/sort">sort</a> has been upgraded from version 2.05 to 2.06.</p> </li> <li><p><a href="/5.41.1/Test2::Suite">Test2::Suite</a> has been upgraded from version 0.000162 to 0.000163.</p> </li> <li><p><a href="/5.41.1/VMS::Filespec">VMS::Filespec</a> has been upgraded from version 1.13 to 1.14.</p> </li> <li><p><a href="/5.41.1/warnings">warnings</a> has been upgraded from version 1.69 to 1.70.</p> </li> </ul> <h1 id="Documentation"><a class="permalink" href="#Documentation">#</a>Documentation</h1> <h2 id="Changes-to-Existing-Documentation"><a class="permalink" href="#Changes-to-Existing-Documentation">#</a><a id="Changes"></a>Changes to Existing Documentation</h2> <p>We have attempted to update the documentation to reflect the changes listed in this document. If you find any we have missed, open an issue at <a href="https://github.com/Perl/perl5/issues">https://github.com/Perl/perl5/issues</a>.</p> <p>Additionally, the following selected changes have been made:</p> <h3 id="perlapi"><a class="permalink" href="#perlapi">#</a><a href="/5.41.1/perlapi">perlapi</a></h3> <ul> <li><p>Combined the documentation for several groups of related functions into single entries.</p> </li> </ul> <h3 id="perlfunc"><a class="permalink" href="#perlfunc">#</a><a href="/5.41.1/perlfunc">perlfunc</a></h3> <ul> <li><p>Clarified the description of <code>ref</code> and <code>reftype</code> in relation to built-in types and class names.</p> </li> <li><p>Clarified that perl <code>sort</code> is stable (and has been since v5.8.0).</p> </li> </ul> <h3 id="perlguts"><a class="permalink" href="#perlguts">#</a><a href="/5.41.1/perlguts">perlguts</a></h3> <ul> <li><p>Added some description of "real" <code>AV</code>s compared to "fake" <code>AV</code>s.</p> </li> </ul> <h1 id="Testing"><a class="permalink" href="#Testing">#</a>Testing</h1> <p>Tests were added and changed to reflect the other additions and changes in this release. Furthermore, these significant changes were made:</p> <ul> <li><p>A new <i>t/run/todo.t</i> test script was added as a place for TODO tests for known unfixed bugs.</p> </li> </ul> <h1 id="Internal-Changes"><a class="permalink" href="#Internal-Changes">#</a><a id="Internal"></a>Internal Changes</h1> <ul> <li><p>The <a href="/5.41.1/perlapi#sv_strftime_ints">"<code>sv_strftime_ints</code>" in perlapi</a> function is introduced. This is an enhanced version of <a href="/5.41.1/perlapi#my_strftime">"<code>my_strftime</code>" in perlapi</a>, which is retained for backwards compatibility. Both are to call <a href="http://man.he.net/man3/strftime">strftime(3)</a> when you have the year, month, hour, etc. The new function handles UTF8ness for you, and allows you to specify if you want the possibility of daylight savings time to be considered. <code>my_strftime</code> never considers DST.</p> </li> <li><p>The <code>bytes_to_utf8</code>, <code>bytes_from_utf8</code>, and <code>bytes_from_utf8_loc</code> functions are no longer experimental.</p> </li> </ul> <h1 id="Selected-Bug-Fixes"><a class="permalink" href="#Selected-Bug-Fixes">#</a><a id="Selected"></a>Selected Bug Fixes</h1> <ul> <li><p>Fix null pointer dereference in S_SvREFCNT_dec [<a href="https://github.com/Perl/perl5/issues/16627">GH #16627</a>].</p> </li> <li><p>Fix feature 'class' Segmentation fault in DESTROY [<a href="https://github.com/Perl/perl5/issues/22278">GH #22278</a>].</p> </li> <li><p>Fix <code>POSIX::strftime()</code> [<a href="https://github.com/Perl/perl5/issues/22369">GH #22369</a>].</p> </li> </ul> <h1 id="Acknowledgements"><a class="permalink" href="#Acknowledgements">#</a>Acknowledgements</h1> <p>Perl 5.41.1 represents approximately 3 weeks of development since Perl 5.41.0 and contains approximately 6,000 lines of changes across 270 files from 20 authors.</p> <p>Excluding auto-generated files, documentation and release tools, there were approximately 3,900 lines of changes to 210 .pm, .t, .c and .h files.</p> <p>Perl continues to flourish into its fourth decade thanks to a vibrant community of users and developers. The following people are known to have contributed the improvements that became Perl 5.41.1:</p> <p>Chad Granum, Craig A. Berry, Dabrien 'Dabe' Murphy, Dan Book, David Mitchell, Elvin Aslanov, Graham Knop, James E Keenan, James Raspass, Johan Vromans, Karl Williamson, Leon Timmermans, Lukas Mai, Max Maischein, Paul Evans, Peter John Acklam, Philippe Bruhat (BooK), Richard Leach, TAKAI Kousuke, Tony Cook.</p> <p>The list above is almost certainly incomplete as it is automatically generated from version control history. In particular, it does not include the names of the (very much appreciated) contributors who reported issues to the Perl bug tracker.</p> <p>Many of the changes included in this version originated in the CPAN modules included in Perl's core. We're grateful to the entire CPAN community for helping Perl to flourish.</p> <p>For a more complete list of all of Perl's historical contributors, please see the <i>AUTHORS</i> file in the Perl source distribution.</p> <h1 id="Reporting-Bugs"><a class="permalink" href="#Reporting-Bugs">#</a><a id="Reporting"></a>Reporting Bugs</h1> <p>If you find what you think is a bug, you might check the perl bug database at <a href="https://github.com/Perl/perl5/issues">https://github.com/Perl/perl5/issues</a>. There may also be information at <a href="https://www.perl.org/">https://www.perl.org/</a>, the Perl Home Page.</p> <p>If you believe you have an unreported bug, please open an issue at <a href="https://github.com/Perl/perl5/issues">https://github.com/Perl/perl5/issues</a>. Be sure to trim your bug down to a tiny but sufficient test case.</p> <p>If the bug you are reporting has security implications which make it inappropriate to send to a public issue tracker, then see <a href="/5.41.1/perlsec#SECURITY-VULNERABILITY-CONTACT-INFORMATION">"SECURITY VULNERABILITY CONTACT INFORMATION" in perlsec</a> for details of how to report the issue.</p> <h1 id="Give-Thanks"><a class="permalink" href="#Give-Thanks">#</a><a id="Give"></a>Give Thanks</h1> <p>If you wish to thank the Perl 5 Porters for the work we had done in Perl 5, you can do so by running the <code>perlthanks</code> program:</p> <pre><code class="plaintext">perlthanks</code></pre> <p>This will send an email to the Perl 5 Porters list with your show of thanks.</p> <h1 id="SEE-ALSO"><a class="permalink" href="#SEE-ALSO">#</a><a id="SEE"></a>SEE ALSO</h1> <p>The <i>Changes</i> file for an explanation of how to view exhaustive details on what changed.</p> <p>The <i>INSTALL</i> file for how to build Perl.</p> <p>The <i>README</i> file for general stuff.</p> <p>The <i>Artistic</i> and <i>Copying</i> files for copyright information.</p> </div> <div id="footer"> <p>Perldoc Browser is maintained by Dan Book (<a href="https://metacpan.org/author/DBOOK">DBOOK</a>). Please contact him via the <a href="https://github.com/Grinnz/perldoc-browser/issues">GitHub issue tracker</a> or <a href="mailto:dbook@cpan.org">email</a> regarding any issues with the site itself, search, or rendering of documentation.</p> <p>The Perl documentation is maintained by the Perl 5 Porters in the development of Perl. Please contact them via the <a href="https://github.com/Perl/perl5/issues">Perl issue tracker</a>, the <a href="https://lists.perl.org/list/perl5-porters.html">mailing list</a>, or <a href="https://kiwiirc.com/client/irc.perl.org/p5p">IRC</a> to report any issues with the contents or format of the documentation.</p> </div> </div> <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.5.1/jquery.slim.min.js" integrity="sha512-/DXTXr6nQodMUiq+IUJYCt2PPOUjrHJ9wFrqpJ3XkgPNOZVfMok7cRw6CSxyCQxXn6ozlESsSh1/sMCTF1rL/g==" crossorigin="anonymous"></script> <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.16.1/umd/popper.min.js" integrity="sha512-ubuT8Z88WxezgSqf3RLuNi5lmjstiJcyezx34yIU2gAHonIi27Na7atqzUZCOoY4CExaoFumzOsFQ2Ch+I/HCw==" crossorigin="anonymous"></script> <script src="https://stackpath.bootstrapcdn.com/bootstrap/4.5.2/js/bootstrap.min.js" integrity="sha384-B4gt1jrGC7Jh4AgTPSdUtOBvfO8shuf57BaghqFfPlYxofvL8/KUEfYiJOMMV+rV" crossorigin="anonymous"></script> <script src="/js/highlight.pack.js"></script> <script>hljs.highlightAll();</script> </body> </html>

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