=head1 NAME
-perldelta - what is new for perl v5.33.5
+[ 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 v5.35.3
=head1 DESCRIPTION
-This document describes differences between the 5.33.4 release and the 5.33.5
+This document describes differences between the 5.35.2 release and the 5.35.3
release.
-If you are upgrading from an earlier release such as 5.33.3, first read
-L<perl5334delta>, which describes differences between 5.33.3 and 5.33.4.
+If you are upgrading from an earlier release such as 5.35.1, first read
+L<perl5352delta>, which describes differences between 5.35.1 and 5.35.2.
+
+=head1 Notice
+
+XXX Any important notices here
=head1 Core Enhancements
-=head2 New octal syntax C<0oI<ddddd>>
+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 *
-It is now possible to specify octal literals with C<0o> prefixes,
-as in C<0o123_456>, parallel to the existing construct to specify
-hexadecimal literal C<0xI<ddddd>> and binary literal C<0bI<ddddd>>.
-Also, the builtin C<oct()> function now accepts this new syntax.
+XXX
-See L<perldata/Scalar value constructors> and L<perlfunc/oct EXPR>.
+=back
=head1 Modules and Pragmata
=head1 Documentation
+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>.
+
=head2 New Documentation
-=head3 L<perldocstyle> has been added to F<pod/>.
+XXX Changes which create B<new> files in F<pod/> go here.
+
+=head3 L<XXX>
-This document is a guide for the authorship and maintenance of the
-documentation that ships with Perl.
+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>
+=head3 L<XXX>
=over 4
=item *
-L<msgsnd()|perlfunc/msgsnd> documented a length field included in the
-packed C<MSG> parameter to msgsnd(), but there was no such field.
-C<MSG> contains only the type and the message content.
+XXX Description of the change here
=back
-=head1 Testing
+=head1 Diagnostics
-Tests were added and changed to reflect the other additions and
-changes in this release. Furthermore, these significant changes were
-made:
+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 *
-When testing in parallel on many-core platforms, you can now cause the
-test suite to finish somewhat earlier, but with less logical ordering of
-the tests, by setting
+XXX L<message|perldiag/"message">
+
+=back
+
+=head3 New Warnings
- PERL_TEST_HARNESS_ASAP=1
+=over 4
+
+=item *
-while running the test suite.
+XXX L<message|perldiag/"message">
=back
-=head2 Platform-Specific Notes
+=head2 Changes to Existing Diagnostics
+
+XXX Changes (i.e. rewording) of diagnostic messages go here
=over 4
-=item Windows
+=item *
+
+XXX Describe change here
-Windows now supports L<symlink()|perlfunc/symlink> and
-L<readlink()|perlfunc/readlink>, and L<lstat()|perlfunc/lstat> is no
-longer an alias for L<stat()|perlfunc/stat>.
-L<[#18005]|https://github.com/Perl/perl5/issues/18005>.
+=back
-Unlike POSIX systems, creating a symbolic link on Windows requires
-either elevated privileges or Windows 10 1703 or later with Developer
-Mode enabled.
+=head1 Utility Changes
-stat(), including C<stat FILEHANDLE>, and lstat() now uses our own
-implementation that populates the device C<dev> and inode numbers
-C<ino> returned rather than always returning zero. The number of
-links C<nlink> field is now always populated.
+XXX Changes to installed programs such as F<perldoc> and F<xsubpp> go here.
+Most of these are built within the directory F<utils>.
-L<< C<${^WIN32_SLOPPY_STAT}> |perlvar/${^WIN32_SLOPPY_STAT} >> previously
-controlled whether the C<nlink> field was populated requiring a
-separate Windows API call to fetch, since nlink and the other
-information required for stat() is now retrieved in a single API call.
+[ 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. ]
-The C<-r> and C<-w> operators now return true for the C<STDIN>,
-C<STDOUT> and C<STDERR> handles. Unfortunately it still won't return
-true for duplicates of those handles.
-L<[#8502]|https://github.com/Perl/perl5/issues/8502>.
+=head2 L<XXX>
-The times returned by stat() and lstat() are no longer incorrect
-across Daylight Savings Time adjustments.
-L<[#6080]|https://github.com/Perl/perl5/issues/6080>.
+=over 4
-C<-x> on a filehandle should now match C<-x> on the corresponding
-filename on Vista or later.
-L<[#4145]|https://github.com/Perl/perl5/issues/4145>.
+=item *
-C<-e '"'> no longer incorrectly returns true.
-L<[#12431]|https://github.com/Perl/perl5/issues/12431>.
+XXX
=back
-=head1 Internal Changes
+=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 *
-All C<SvTRUE>-ish functions now evaluate their arguments exactly once.
-In 5.32, plain L<perlapi/C<SvTRUE>> was changed to do that; now the rest
-do as well.
+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 *
-Unicode is now a first class citizen when considering the pattern /A*B/ where
-A and B are arbitrary. The pattern matching code tries to make a tight loop
-to match the span of A's. The logic of this was now really updated with
-support for UTF-8.
+XXX
=back
-=head1 Selected Bug Fixes
+=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 *
+=item XXX-some-platform
-L<semctl()|perlfunc/semctl>, L<msgctl()|perlfunc/msgctl>, and
-L<shmctl()|perlfunc/shmctl> now properly reset the UTF-8 flag on the
-C<ARG> parameter if it's modified for C<IPC_STAT> or C<GETALL>
-operations.
+XXX
-=item *
+=back
-semctl(), msgctl(), and shmctl() now attempt to downgrade the C<ARG>
-parameter if it's value is being used as input to C<IPC_SET> or
-C<SETALL> calls. A failed downgrade will thrown an exception.
+=head2 Discontinued Platforms
-=item *
+XXX List any platforms that this version of perl no longer compiles on.
+
+=over 4
+
+=item XXX-some-platform
-In cases where semctl(), msgctl() or shmctl() would treat the C<ARG>
-parameter as a pointer, an undefined value no longer generates a
-warning. In most such calls the pointer isn't used anyway and this
-allows you to supply C<undef> for a value not used by the underlying
-function.
+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 *
-L<semop()|perlfunc/semop> now downgrades the C<OPSTRING> parameter,
-L<msgsnd()|perlfunc/msgsnd> now downgrades the C<MSG> parameter and
-L<shmwrite|perlfunc/shmwrite> now downgrades the C<STRING> parameter
-to treat them as bytes. Previously they would be left upgraded,
-providing a corrupted structure to the underlying function call.
+XXX
+
+=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>.
+
+[ List each fix as an =item entry ]
+
+=over 4
=item *
-L<msgrcv()|perlfunc/msgrcv> now properly resets the UTF-8 flag the
-C<VAR> parameter when it is modified. Previusly the UTF-8 flag could
-be left on, resulting in a possibly corrupt result in C<VAR>.
+XXX
=back
=head1 Errata From Previous Releases
-None
+=over 4
-=head1 Acknowledgements
+=item *
-Perl 5.33.5 represents approximately 4 weeks of development since Perl
-5.33.4 and contains approximately 22,000 lines of changes across 370 files
-from 27 authors.
+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 15,000 lines of changes to 220 .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 5.33.5:
+=head1 Obituary
-Branislav Zahradník, Chris 'BinGOs' Williams, Dan Book, Dan Kogai, David
-Cantrell, David Mitchell, Graham Knop, H.Merijn Brand, Jae Bradley, James E
-Keenan, Jason McIntosh, jkahrman, John Karr, Karen Etheridge, Karl
-Williamson, Leon Timmermans, Max Maischein, Paul Evans, Sawyer X, Sevan
-Janiyan, Shlomi Fish, Steve Hay, TAKAI Kousuke, Thibault Duponchelle, Tomasz
-Konojacki, Tom Hukins, 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 v5.35.2..HEAD
=head1 Reporting Bugs
https://perl5.git.perl.org / perl5.git / blobdiff