=head1 NAME
-perldelta - what is new for perl v5.33.8
+[ this is a template for a new perldelta file. Any text flagged as XXX needs
+to be processed before release. ]
+
+perldelta - what is new for perl v5.33.9
=head1 DESCRIPTION
-This document describes differences between the 5.33.7 release and the 5.33.8
+This document describes differences between the 5.33.8 release and the 5.33.9
release.
-If you are upgrading from an earlier release such as 5.33.6, first read
-L<perl5337delta>, which describes differences between 5.33.6 and 5.33.7.
+If you are upgrading from an earlier release such as 5.33.7, first read
+L<perl5338delta>, which describes differences between 5.33.7 and 5.33.8.
+
+=head1 Notice
+
+XXX Any important notices here
+
+=head1 Core Enhancements
+
+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 L</Performance Enhancements> section.
+
+[ List each enhancement as a =head2 entry ]
+
+=head1 Security
+
+XXX Any security-related notices go here. In particular, any security
+vulnerabilities closed should be noted here rather than in the
+L</Selected Bug Fixes> section.
+
+[ List each security issue as a =head2 entry ]
+
+=head1 Incompatible Changes
+
+XXX For a release on a stable branch, this section aspires to be:
+
+ 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.
+
+[ List each incompatible change as a =head2 entry ]
+
+=head1 Deprecations
+
+XXX Any deprecated features, syntax, modules etc. should be listed here.
+
+=head2 Module removals
+
+XXX Remove this section if not applicable.
+
+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.
+
+The core versions of these modules will now issue C<"deprecated">-category
+warnings to alert you to this fact. To silence these deprecation warnings,
+install the modules in question from CPAN.
+
+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.
+
+=over
+
+=item XXX
+
+XXX Note that deprecated modules should be listed here even if they are listed
+as an updated module in the L</Modules and Pragmata> section.
+
+=back
+
+[ List each other deprecation as a =head2 entry ]
=head1 Performance Enhancements
+XXX Changes which enhance performance without changing behaviour go here.
+There may well be none in a stable release.
+
+[ List each enhancement as an =item entry ]
+
=over 4
=item *
-Fix a memory leak in RegEx (L<GH #18604|https://github.com/Perl/perl5/issues/18604>)
+XXX
=back
=head1 Modules and Pragmata
-=head2 Updated Modules and Pragmata
+XXX All changes to installed files in F<cpan/>, F<dist/>, F<ext/> and F<lib/>
+go here. If Module::CoreList is updated, generate an initial draft of the
+following sections using F<Porting/corelist-perldelta.pl>. A paragraph summary
+for important changes should then be added by hand. In an ideal world,
+dual-life modules would have a F<Changes> file that could be cribbed.
+
+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.)
+
+[ Within each section, list entries as an =item entry ]
+
+=head2 New Modules and Pragmata
=over 4
=item *
-L<Compress::Raw::Bzip2> has been upgraded from version 2.100 to 2.101.
+XXX Remove this section if not applicable.
-=item *
+=back
-L<Compress::Raw::Zlib> has been upgraded from version 2.100 to 2.101.
+=head2 Updated Modules and Pragmata
+
+=over 4
=item *
-L<Data::Dumper> has been upgraded from version 2.176 to 2.177.
+L<XXX> has been upgraded from version A.xx to B.yy.
-=item *
+If there was something important to note about this change, include that here.
-L<IO::Compress> has been upgraded from version 2.100 to 2.102.
+=back
+
+=head2 Removed Modules and Pragmata
-- bin/zipdetails version 2.02
+=over 4
=item *
-L<Module::CoreList> has been upgraded from version 5.20210220 to 5.20210320.
+XXX
-=item *
+=back
-L<Pod::Html> has been upgraded from version 1.26 to 1.27.
+=head1 Documentation
-=item *
+XXX Changes to files in F<pod/> go here. Consider grouping entries by
+file and be sure to link to the appropriate page, e.g. L<perlfunc>.
-L<Win32> has been upgraded from version 0.54 to 0.57.
+=head2 New Documentation
-- fix calling convention for PFNRegGetValueA
-- added Win32::IsSymlinkCreationAllowed(), Win32::IsDeveloperModeEnabled(),
- and Win32::GetProcessPrivileges()
-- removed old code for versions before Windows 2000
+XXX Changes which create B<new> files in F<pod/> go here.
-=back
+=head3 L<XXX>
-=head1 Documentation
+XXX Description of the purpose of the new file here
=head2 Changes to Existing Documentation
listed in this document. If you find any we have missed, open an issue
at L<https://github.com/Perl/perl5/issues>.
+XXX Changes which significantly change existing files in F<pod/> go here.
+However, any changes to F<pod/perldiag.pod> should go in the L</Diagnostics>
+section.
+
Additionally, the following selected changes have been made:
-=head3 L<perlfunc> and L<perlsyn>
+=head3 L<XXX>
=over 4
=item *
-Document that caller() does not see try{} blocks
+XXX Description of the change here
=back
-=head3 L<perlgit>
+=head1 Diagnostics
+
+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 L<perldiag>.
+
+XXX New or changed warnings emitted by the core's C<C> code go here. Also
+include any changes in L<perldiag> that reconcile it to the C<C> code.
+
+=head2 New Diagnostics
+
+XXX Newly added diagnostic messages go under here, separated into New Errors
+and New Warnings
+
+=head3 New Errors
=over 4
=item *
-document how to create a remote-tracking branch for every PR
+XXX L<message|perldiag/"message">
+
+=back
+
+=head3 New Warnings
+
+=over 4
=item *
-document how to get a PR as a local branch
+XXX L<message|perldiag/"message">
=back
-=head3 L<perlunifaq>
+=head2 Changes to Existing Diagnostics
+
+XXX Changes (i.e. rewording) of diagnostic messages go here
=over 4
=item *
-Fix description of what Perl does with unencoded strings
+XXX Describe change here
+
+=back
+
+=head1 Utility Changes
+
+XXX Changes to installed programs such as F<perldoc> and F<xsubpp> go here.
+Most of these are built within the directory F<utils>.
+
+[ List utility changes as a =head2 entry for each utility and =item
+entries for each change
+Use L<XXX> with program names to get proper documentation linking. ]
+
+=head2 L<XXX>
+
+=over 4
+
+=item *
+
+XXX
+
+=back
+
+=head1 Configuration and Compilation
+
+XXX Changes to F<Configure>, F<installperl>, F<installman>, 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
+L</Platform Support> section, instead.
+
+[ List changes as an =item entry ].
+
+=over 4
+
+=item *
+
+XXX
=back
=head1 Testing
+XXX Any significant changes to the testing of a freshly built perl should be
+listed here. Changes which create B<new> files in F<t/> go here as do any
+large changes to the testing harness (e.g. when parallel testing was added).
+Changes to existing files in F<t/> aren't worth summarizing, although the bugs
+that they represent may be covered elsewhere.
+
+XXX If there were no significant test changes, say this:
+
+Tests were added and changed to reflect the other additions and changes
+in this release.
+
+XXX If instead there were significant changes, say this:
+
Tests were added and changed to reflect the other additions and
changes in this release. Furthermore, these significant changes were
made:
+[ List each test improvement as an =item entry ]
+
=over 4
=item *
-Split Config-dependent tests in t/opbasic/arith.t to t/op/arith2.t
+XXX
+
+=back
+
+=head1 Platform Support
+
+XXX Any changes to platform support should be listed in the sections below.
+
+[ Within the sections, list each platform as an =item entry with specific
+changes as paragraphs below it. ]
+
+=head2 New Platforms
+
+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 F<hints/>
+directories, or new subdirectories and F<README> files at the top level of the
+source tree.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
+
+=back
+
+=head2 Discontinued Platforms
+
+XXX List any platforms that this version of perl no longer compiles on.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
+
+=back
+
+=head2 Platform-Specific Notes
+
+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
+L</Modules and Pragmata> section.
+
+=over 4
+
+=item XXX-some-platform
+
+XXX
=back
=head1 Internal Changes
+XXX Changes which affect the interface available to C<XS> code go here. Other
+significant internal changes for future core maintainers should be noted as
+well.
+
+[ List each change as an =item entry ]
+
=over 4
=item *
-A set of cop_hints_exists_{pv,pvn,pvs,sv} functions was added, to support checking
-for the existence of keys in the hints hash of a specific cop without needing to
-create a mortal copy of said value.
+XXX
-=item *
+=back
+
+=head1 Selected Bug Fixes
+
+XXX Important bug fixes in the core language are summarized here. Bug fixes in
+files in F<ext/> and F<lib/> are best summarized in L</Modules and Pragmata>.
-An aid has been added for using the C<DEBUG> macros when debugging XS or
-C code. The comments in F<perl.h> describe C<DEBUG_PRE_STMTS> and
-C<DEBUG_POST_STMTS>. which you can C<#define> to do things like save and
-restore C<errno>, in case the C<DEBUG> calls are interfering with that,
-or to display timestamps, or which thread it's coming from, or the
-location of the call, or whatever. You can make a quick hack to help
-you track something down without having to edit individual C<DEBUG>
-calls.
+[ List each fix as an =item entry ]
+
+=over 4
=item *
-Make REFCOUNTED_HE_EXISTS available outside of core
+XXX
=back
-=head1 Selected Bug Fixes
+=head1 Known Problems
+
+XXX Descriptions of platform agnostic bugs we know we can't fix go here. Any
+tests that had to be C<TODO>ed for the release would be noted here. Unfixed
+platform specific bugs also go here.
+
+[ List each fix as an =item entry ]
=over 4
=item *
-Fix a memory leak in regcomp.c (L<GH #18604|https://github.com/Perl/perl5/issues/18604>)
+XXX
=back
-=head1 Acknowledgements
+=head1 Errata From Previous Releases
+
+=over 4
-Perl 5.33.8 represents approximately 4 weeks of development since Perl
-5.33.7 and contains approximately 3,300 lines of changes across 120 files
-from 15 authors.
+=item *
+
+XXX Add anything here that we forgot to add, or were mistaken about, in
+the perldelta of a previous release.
-Excluding auto-generated files, documentation and release tools, there were
-approximately 1,100 lines of changes to 66 .pm, .t, .c and .h files.
+=back
-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 5.33.8:
+=head1 Obituary
-Aaron Crane, brian d foy, Craig A. Berry, David Mitchell, Felipe Gasper,
-James E Keenan, Karl Williamson, Keith Thompson, Leon Timmermans, Nicolas
-R., Paul Evans, Renee Baecker, Ricardo Signes, Tomasz Konojacki, Tony Cook.
+XXX If any significant core contributor or member of the CPAN community has
+died, add a short obituary here.
-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.
+=head1 Acknowledgements
-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.
+XXX Generate this with:
-For a more complete list of all of Perl's historical contributors, please
-see the F<AUTHORS> file in the Perl source distribution.
+ perl Porting/acknowledgements.pl v5.33.8..HEAD
=head1 Reporting Bugs