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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="#Notice">Notice</a> </li> <li> <a class="text-decoration-none" href="#Core-Enhancements">Core Enhancements</a> </li> <li> <a class="text-decoration-none" href="#Security">Security</a> </li> <li> <a class="text-decoration-none" href="#Incompatible-Changes">Incompatible Changes</a> </li> <li> <a class="text-decoration-none" href="#Deprecations">Deprecations</a> <ul> <li> <a class="text-decoration-none" href="#Module-removals">Module removals</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="#New-Modules-and-Pragmata">New Modules and Pragmata</a> </li> <li> <a class="text-decoration-none" href="#Updated-Modules-and-Pragmata">Updated Modules and Pragmata</a> </li> <li> <a class="text-decoration-none" href="#Removed-Modules-and-Pragmata">Removed 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="#New-Documentation">New Documentation</a> <ul> <li> <a class="text-decoration-none" href="#XXX1">XXX</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Changes-to-Existing-Documentation">Changes to Existing Documentation</a> <ul> <li> <a class="text-decoration-none" href="#XXX2">XXX</a> </li> </ul> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Diagnostics">Diagnostics</a> <ul> <li> <a class="text-decoration-none" href="#New-Diagnostics">New Diagnostics</a> <ul> <li> <a class="text-decoration-none" href="#New-Errors">New Errors</a> </li> <li> <a class="text-decoration-none" href="#New-Warnings">New Warnings</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Changes-to-Existing-Diagnostics">Changes to Existing Diagnostics</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Utility-Changes">Utility Changes</a> <ul> <li> <a class="text-decoration-none" href="#XXX3">XXX</a> </li> </ul> </li> <li> <a class="text-decoration-none" href="#Configuration-and-Compilation">Configuration and Compilation</a> </li> <li> <a class="text-decoration-none" href="#Testing">Testing</a> </li> <li> <a class="text-decoration-none" href="#Platform-Support">Platform Support</a> <ul> <li> <a class="text-decoration-none" href="#New-Platforms">New Platforms</a> </li> <li> <a class="text-decoration-none" href="#Discontinued-Platforms">Discontinued Platforms</a> </li> <li> <a class="text-decoration-none" href="#Platform-Specific-Notes">Platform-Specific Notes</a> </li> </ul> </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="#Known-Problems">Known Problems</a> </li> <li> <a class="text-decoration-none" href="#Errata-From-Previous-Releases">Errata From Previous Releases</a> </li> <li> <a class="text-decoration-none" href="#Obituary">Obituary</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>[ this is a template for a new perldelta file. Any text flagged as XXX needs to be processed before release. ]</p> <p>perldelta - what is new for perl v5.41.10</p> <h1 id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">#</a>DESCRIPTION</h1> <p>This document describes differences between the 5.41.9 release and the 5.41.10 release.</p> <p>If you are upgrading from an earlier release such as 5.41.8, first read <a href="/blead/perl5419delta">perl5419delta</a>, which describes differences between 5.41.8 and 5.41.9.</p> <h1 id="Notice"><a class="permalink" href="#Notice">#</a>Notice</h1> <p>XXX Any important notices here</p> <h1 id="Core-Enhancements"><a class="permalink" href="#Core-Enhancements">#</a><a id="Core"></a>Core Enhancements</h1> <p>XXX New core language features go here. Summarize user-visible core language enhancements. Particularly prominent performance optimisations could go here, but most should go in the <a href="#Performance-Enhancements">"Performance Enhancements"</a> section.</p> <p>[ List each enhancement as a =head2 entry ]</p> <h1 id="Security"><a class="permalink" href="#Security">#</a>Security</h1> <p>XXX Any security-related notices go here. In particular, any security vulnerabilities closed should be noted here rather than in the <a href="#Selected-Bug-Fixes">"Selected Bug Fixes"</a> section.</p> <p>[ List each security issue as a =head2 entry ]</p> <h1 id="Incompatible-Changes"><a class="permalink" href="#Incompatible-Changes">#</a><a id="Incompatible"></a>Incompatible Changes</h1> <p>XXX For a release on a stable branch, this section aspires to be:</p> <pre><code class="plaintext">There are no changes intentionally incompatible with 5.XXX.XXX If any exist, they are bugs, and we request that you submit a report. See L</Reporting Bugs> below.</code></pre> <p>[ List each incompatible change as a =head2 entry ]</p> <h1 id="Deprecations"><a class="permalink" href="#Deprecations">#</a>Deprecations</h1> <p>XXX Any deprecated features, syntax, modules etc. should be listed here.</p> <h2 id="Module-removals"><a class="permalink" href="#Module-removals">#</a><a id="Module"></a>Module removals</h2> <p>XXX Remove this section if not applicable.</p> <p>The following modules will be removed from the core distribution in a future release, and will at that time need to be installed from CPAN. Distributions on CPAN which require these modules will need to list them as prerequisites.</p> <p>The core versions of these modules will now issue <code>deprecated</code>-category warnings to alert you to this fact. To silence these deprecation warnings, install the modules in question from CPAN.</p> <p>Note that these are (with rare exceptions) fine modules that you are encouraged to continue to use. Their disinclusion from core primarily hinges on their necessity to bootstrapping a fully functional, CPAN-capable Perl installation, not usually on concerns over their design.</p> <dl> <dt id="XXX"><a class="permalink" href="#XXX">#</a>XXX</dt> <dd> <p>XXX Note that deprecated modules should be listed here even if they are listed as an updated module in the <a href="#Modules-and-Pragmata">"Modules and Pragmata"</a> section.</p> </dd> </dl> <p>[ List each other deprecation as a =head2 entry ]</p> <h1 id="Performance-Enhancements"><a class="permalink" href="#Performance-Enhancements">#</a><a id="Performance"></a>Performance Enhancements</h1> <p>XXX Changes which enhance performance without changing behaviour go here. There may well be none in a stable release.</p> <p>[ List each enhancement as an =item entry ]</p> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Modules-and-Pragmata"><a class="permalink" href="#Modules-and-Pragmata">#</a><a id="Modules"></a>Modules and Pragmata</h1> <p>XXX All changes to installed files in <i>cpan/</i>, <i>dist/</i>, <i>ext/</i> and <i>lib/</i> go here. If <a href="/blead/Module::CoreList">Module::CoreList</a> is updated, generate an initial draft of the following sections using <i>Porting/corelist-perldelta.pl</i>. A paragraph summary for important changes should then be added by hand. In an ideal world, dual-life modules would have a <i>Changes</i> file that could be cribbed.</p> <p>The list of new and updated modules is modified automatically as part of preparing a Perl release, so the only reason to manually add entries here is if you're summarising the important changes in the module update. (Also, if the manually-added details don't match the automatically-generated ones, the release manager will have to investigate the situation carefully.)</p> <p>[ Within each section, list entries as an =item entry ]</p> <h2 id="New-Modules-and-Pragmata"><a class="permalink" href="#New-Modules-and-Pragmata">#</a><a id="New"></a>New Modules and Pragmata</h2> <ul> <li><p>XXX Remove this section if <i>Porting/corelist-perldelta.pl</i> did not add any content here.</p> </li> </ul> <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="/blead/XXX">XXX</a> has been upgraded from version A.xx to B.yy.</p> <p>XXX If there was something important to note about this change, include that here.</p> </li> <li><p><a href="/blead/builtin">builtin</a> has been upgraded from version 0.017 to 0.018.</p> <p>On platforms that don't support Inf/NaN values in floating-point numbers (such as VAX), <code>builtin::inf</code> and <code>builtin::nan</code> now throw a runtime error (rather than breaking the perl build). [GH #22882]</p> </li> </ul> <h2 id="Removed-Modules-and-Pragmata"><a class="permalink" href="#Removed-Modules-and-Pragmata">#</a><a id="Removed"></a>Removed Modules and Pragmata</h2> <ul> <li><p>XXX Remove this section if <i>Porting/corelist-perldelta.pl</i> did not add any content here.</p> </li> </ul> <h1 id="Documentation"><a class="permalink" href="#Documentation">#</a>Documentation</h1> <p>XXX Changes to files in <i>pod/</i> go here. Consider grouping entries by file and be sure to link to the appropriate page, e.g. <a href="/blead/perlfunc">perlfunc</a>.</p> <h2 id="New-Documentation"><a class="permalink" href="#New-Documentation">#</a><a id="New1"></a>New Documentation</h2> <p>XXX Changes which create <b>new</b> files in <i>pod/</i> go here.</p> <h3 id="XXX1"><a class="permalink" href="#XXX1">#</a><a href="/blead/XXX">XXX</a></h3> <p>XXX Description of the purpose of the new file here</p> <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>XXX Changes which significantly change existing files in <i>pod/</i> go here. However, any changes to <i>pod/perldiag.pod</i> should go in the <a href="#Diagnostics">"Diagnostics"</a> section.</p> <p>Additionally, the following selected changes have been made:</p> <h3 id="XXX2"><a class="permalink" href="#XXX2">#</a><a href="/blead/XXX">XXX</a></h3> <ul> <li><p>XXX Description of the change here</p> </li> </ul> <h1 id="Diagnostics"><a class="permalink" href="#Diagnostics">#</a>Diagnostics</h1> <p>The following additions or changes have been made to diagnostic output, including warnings and fatal error messages. For the complete list of diagnostic messages, see <a href="/blead/perldiag">perldiag</a>.</p> <p>XXX New or changed warnings emitted by the core's <code>C</code> code go here. Also include any changes in <a href="/blead/perldiag">perldiag</a> that reconcile it to the <code>C</code> code.</p> <h2 id="New-Diagnostics"><a class="permalink" href="#New-Diagnostics">#</a><a id="New2"></a>New Diagnostics</h2> <p>XXX Newly added diagnostic messages go under here, separated into <a href="#New-Errors">"New Errors"</a> and <a href="#New-Warnings">"New Warnings"</a></p> <h3 id="New-Errors"><a class="permalink" href="#New-Errors">#</a><a id="New3"></a>New Errors</h3> <ul> <li><p>XXX <a href="/blead/perldiag#message">message</a></p> </li> </ul> <h3 id="New-Warnings"><a class="permalink" href="#New-Warnings">#</a><a id="New4"></a>New Warnings</h3> <ul> <li><p>XXX <a href="/blead/perldiag#message">message</a></p> </li> </ul> <h2 id="Changes-to-Existing-Diagnostics"><a class="permalink" href="#Changes-to-Existing-Diagnostics">#</a><a id="Changes1"></a>Changes to Existing Diagnostics</h2> <p>XXX Changes (i.e. rewording) of diagnostic messages go here</p> <ul> <li><p>XXX Describe change here</p> </li> </ul> <h1 id="Utility-Changes"><a class="permalink" href="#Utility-Changes">#</a><a id="Utility"></a>Utility Changes</h1> <p>XXX Changes to installed programs such as <i>perldoc</i> and <i>xsubpp</i> go here. Most of these are built within the directory <i>utils</i>.</p> <p>[ List utility changes as a =head2 entry for each utility and =item entries for each change Use <i>XXX</i> with program names to get proper documentation linking. ]</p> <h2 id="XXX3"><a class="permalink" href="#XXX3">#</a><i>XXX</i></h2> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Configuration-and-Compilation"><a class="permalink" href="#Configuration-and-Compilation">#</a><a id="Configuration"></a>Configuration and Compilation</h1> <p>XXX Changes to <i>Configure</i>, <i>installperl</i>, <i>installman</i>, and analogous tools go here. Any other changes to the Perl build process should be listed here. However, any platform-specific changes should be listed in the <a href="#Platform-Support">"Platform Support"</a> section, instead.</p> <p>[ List changes as an =item entry ].</p> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Testing"><a class="permalink" href="#Testing">#</a>Testing</h1> <p>XXX Any significant changes to the testing of a freshly built perl should be listed here. Changes which create <b>new</b> files in <i>t/</i> go here as do any large changes to the testing harness (e.g. when parallel testing was added). Changes to existing files in <i>t/</i> aren't worth summarizing, although the bugs that they represent may be covered elsewhere.</p> <p>XXX If there were no significant test changes, say this:</p> <p>Tests were added and changed to reflect the other additions and changes in this release.</p> <p>XXX If instead there were significant changes, say this:</p> <p>Tests were added and changed to reflect the other additions and changes in this release. Furthermore, these significant changes were made:</p> <p>[ List each test improvement as an =item entry ]</p> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Platform-Support"><a class="permalink" href="#Platform-Support">#</a><a id="Platform"></a>Platform Support</h1> <p>XXX Any changes to platform support should be listed in the sections below.</p> <p>[ Within the sections, list each platform as an =item entry with specific changes as paragraphs below it. ]</p> <h2 id="New-Platforms"><a class="permalink" href="#New-Platforms">#</a><a id="New5"></a>New Platforms</h2> <p>XXX List any platforms that this version of perl compiles on, that previous versions did not. These will either be enabled by new files in the <i>hints/</i> directories, or new subdirectories and <i>README</i> files at the top level of the source tree.</p> <dl> <dt id="XXX-some-platform"><a class="permalink" href="#XXX-some-platform">#</a><a id="XXX4"></a>XXX-some-platform</dt> <dd> <p>XXX</p> </dd> </dl> <h2 id="Discontinued-Platforms"><a class="permalink" href="#Discontinued-Platforms">#</a><a id="Discontinued"></a>Discontinued Platforms</h2> <p>XXX List any platforms that this version of perl no longer compiles on.</p> <dl> <dt id="XXX-some-platform1"><a class="permalink" href="#XXX-some-platform1">#</a><a id="XXX5"></a>XXX-some-platform</dt> <dd> <p>XXX</p> </dd> </dl> <h2 id="Platform-Specific-Notes"><a class="permalink" href="#Platform-Specific-Notes">#</a><a id="Platform1"></a>Platform-Specific Notes</h2> <p>XXX List any changes for specific platforms. This could include configuration and compilation changes or changes in portability/compatibility. However, changes within modules for platforms should generally be listed in the <a href="#Modules-and-Pragmata">"Modules and Pragmata"</a> section.</p> <dl> <dt id="XXX-some-platform2"><a class="permalink" href="#XXX-some-platform2">#</a><a id="XXX6"></a>XXX-some-platform</dt> <dd> <p>XXX</p> </dd> </dl> <h1 id="Internal-Changes"><a class="permalink" href="#Internal-Changes">#</a><a id="Internal"></a>Internal Changes</h1> <p>XXX Changes which affect the interface available to <code>XS</code> code go here. Other significant internal changes for future core maintainers should be noted as well.</p> <p>[ List each change as an =item entry ]</p> <ul> <li><p>Three new API functions have been added to interact with the regexp global match position stored in an SV. These are <code>sv_regex_global_pos_get()</code>, <code>sv_regex_global_pos_set()</code> and <code>sv_regex_global_pos_clear()</code>. Using these API functions avoids XS modules needing to know about or interact directly with the way this position is currently stored, which involves the <code>PERL_MAGIC_regex_global</code> magic type.</p> </li> </ul> <h1 id="Selected-Bug-Fixes"><a class="permalink" href="#Selected-Bug-Fixes">#</a><a id="Selected"></a>Selected Bug Fixes</h1> <p>XXX Important bug fixes in the core language are summarized here. Bug fixes in files in <i>ext/</i> and <i>lib/</i> are best summarized in <a href="#Modules-and-Pragmata">"Modules and Pragmata"</a>.</p> <p>XXX Include references to GitHub issues and PRs as: [GH #12345] and the release manager will later use a regex to expand these into links.</p> <p>[ List each fix as an =item entry ]</p> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Known-Problems"><a class="permalink" href="#Known-Problems">#</a><a id="Known"></a>Known Problems</h1> <p>XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any tests that had to be <code>TODO</code>ed for the release would be noted here. Unfixed platform specific bugs also go here.</p> <p>[ List each fix as an =item entry ]</p> <ul> <li><p>XXX</p> </li> </ul> <h1 id="Errata-From-Previous-Releases"><a class="permalink" href="#Errata-From-Previous-Releases">#</a><a id="Errata"></a>Errata From Previous Releases</h1> <ul> <li><p>XXX Add anything here that we forgot to add, or were mistaken about, in the <i>perldelta</i> of a previous release.</p> </li> </ul> <h1 id="Obituary"><a class="permalink" href="#Obituary">#</a>Obituary</h1> <p>XXX If any significant core contributor or member of the CPAN community has died, add a short obituary here.</p> <h1 id="Acknowledgements"><a class="permalink" href="#Acknowledgements">#</a>Acknowledgements</h1> <p>XXX Generate this with:</p> <pre><code class="plaintext">perl Porting/acknowledgements.pl v5.41.9..HEAD</code></pre> <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="/blead/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>). 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