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Diffstat (limited to 'pod/perldelta.pod')
| -rw-r--r-- | pod/perldelta.pod | 365 |
1 files changed, 258 insertions, 107 deletions
diff --git a/pod/perldelta.pod b/pod/perldelta.pod index c71e90176b..e2df3a4058 100644 --- a/pod/perldelta.pod +++ b/pod/perldelta.pod @@ -2,257 +2,408 @@ =head1 NAME -perldelta - what is new for perl v5.35.8 +[ 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 v5.35.9 =head1 DESCRIPTION -This document describes differences between the 5.35.7 release and the 5.35.8 +This document describes differences between the 5.35.8 release and the 5.35.9 release. -If you are upgrading from an earlier release such as 5.35.6, first read -L<perl5357delta>, which describes differences between 5.35.6 and 5.35.7. +If you are upgrading from an earlier release such as 5.35.7, first read +L<perl5358delta>, which describes differences between 5.35.7 and 5.35.8. + +=head1 Notice + +XXX Any important notices here =head1 Core Enhancements -=head2 Try/Catch Syntax Now Recognises C<finally> Blocks +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. -The experimental C<try>/C<catch> syntax has been extended to support an -optional third block introduced by the C<finally> keyword. +[ List each enhancement as a =head2 entry ] - try { - attempt(); - print "Success\n"; - } - catch ($e) { - print "Failure\n"; - } - finally { - print "This happens regardless\n"; - } +=head1 Security -This provides code which runs at the end of the C<try>/C<catch> construct, -even if aborted by an exception or control-flow keyword. They are similar -to C<defer> blocks. +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. -For more information, see L<perlsyn/"Try Catch Exception Handling">. +[ List each security issue as a =head2 entry ] =head1 Incompatible Changes -=head2 A physically empty sort is now a compile-time error +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 - @a = sort @empty; # unaffected - @a = sort; # now a compile-time error +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 -A bare sort used to be a weird way to create an empty list; now it croaks -at compile time. This is change is intended to free up some of the syntax -space for possible future enhancements to C<sort>. +[ 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 * -Try / Catch optimization: make sure to rpeep() the body of catch {} blocks +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<Module::CoreList> has been upgraded from version 5.20211220 to 5.20220120. +XXX Remove this section if not applicable. -=item * +=back -L<bignum> has been upgraded from version 0.63 to 0.64. +=head2 Updated Modules and Pragmata + +=over 4 =item * -L<Data::Dumper> has been upgraded from version 2.183 to 2.184. +L<XXX> has been upgraded from version A.xx to B.yy. -Fixes for EBCDIC. +If there was something important to note about this change, include that here. -=item * +=back + +=head2 Removed Modules and Pragmata -L<File::Fetch> has been upgraded from version 1.00 to 1.04. +=over 4 =item * -L<File::Find> has been upgraded from version 1.39_01 to 1.40. +XXX -Replace bareword filehandle with a lexical scalar. +=back -=item * +=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 + +XXX Changes which create B<new> files in F<pod/> go here. + +=head3 L<XXX> + +XXX Description of the purpose of the new file here + +=head2 Changes to Existing Documentation + +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 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. -L<Locale::Maketext> has been upgraded from version 1.29 to 1.30. +Additionally, the following selected changes have been made: -Provide inclusive names allowlist and denylist +=head3 L<XXX> + +=over 4 =item * -L<Math::BigInt> has been upgraded from version 1.999828 to 1.999829. +XXX Description of the change here + +=back + +=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 * -L<NEXT> has been upgraded from version 0.68 to 0.69. +XXX L<message|perldiag/"message"> + +=back + +=head3 New Warnings + +=over 4 =item * -L<POSIX> has been upgraded from version 2.02 to 2.03. +XXX L<message|perldiag/"message"> + +=back + +=head2 Changes to Existing Diagnostics -FLT_ROUNDS now emulates (more) standard behavior that reflects -the current rounding mode set by fesetround. +XXX Changes (i.e. rewording) of diagnostic messages go here + +=over 4 =item * -L<Win32> has been upgraded from version 0.57 to 0.58. +XXX Describe change here =back -=head1 Documentation +=head1 Utility Changes -=head2 Changes to Existing Documentation +XXX Changes to installed programs such as F<perldoc> and F<xsubpp> go here. +Most of these are built within the directory F<utils>. -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 L<https://github.com/Perl/perl5/issues>. +[ 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. ] -Additionally, the following selected changes have been made: +=head2 L<XXX> + +=over 4 + +=item * -=head3 L<perlrun> +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 * -B<-?> is now a synonym for B<-h> +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 * -ExtUtils-ParseXS test suite improvement - -=item * +XXX -Hash::Util::FieldHash test suite improvement +=back -=item * +=head1 Platform Support -Pod::Html test suite improvement +XXX Any changes to platform support should be listed in the sections below. -=item * +[ Within the sections, list each platform as an =item entry with specific +changes as paragraphs below it. ] -Tie::SubstrHash test suite improvement +=head2 New Platforms -=item * +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. -Time-HiRes test suite improvement +=over 4 -=item * +=item XXX-some-platform -Fix several test failures on CygWin and MSWin32. +XXX =back -=head1 Platform Support +=head2 Discontinued Platforms -=head2 Platform-Specific Notes +XXX List any platforms that this version of perl no longer compiles on. =over 4 -=item z/OS +=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 * +=item XXX-some-platform -Update z/OS (previously called OS/390) README to describe ASCII and EBCDIC builds -z/OS ASCII Enablement: Manage untagged header errno.h by copy & tag +XXX =back -=back +=head1 Internal Changes -=over 4 +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. -=item Windows +[ List each change as an =item entry ] =over 4 =item * -Support for compiling perl on Windows using Microsoft Visual Studio 2022 -(containing Visual C++ 14.3) has been added. +XXX =back -=back +=head1 Selected Bug Fixes -=head1 Internal Changes +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 * -Add missing aliases for \p{Present_In} +XXX -=item * +=back -Change C<pack> U behavior for EBCDIC +=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 * -sv_upgrade: use c99 compound literals to initialize xpvav/xpvhv +XXX =back -=head1 Acknowledgements +=head1 Errata From Previous Releases -Perl 5.35.8 represents approximately 4 weeks of development since Perl -5.35.7 and contains approximately 29,000 lines of changes across 190 files -from 19 authors. +=over 4 -Excluding auto-generated files, documentation and release tools, there were -approximately 23,000 lines of changes to 120 .pm, .t, .c and .h files. +=item * -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 5.35.8: +XXX Add anything here that we forgot to add, or were mistaken about, in +the perldelta of a previous release. -Chris 'BinGOs' Williams, Craig A. Berry, David Mitchell, E. Choroba, -François Perrad, Graham Knop, Ivan Panchenko, James E Keenan, Karl -Williamson, Michiel Beijen, Mike Fulton, Neil Bowers, Nicholas Clark, -Nicolas R., Paul Evans, Richard Leach, Sawyer X, TAKAI Kousuke, Tomasz -Konojacki. +=back -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 Obituary + +XXX If any significant core contributor or member of the CPAN community has +died, add a short obituary here. + +=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 v5.35.8..HEAD =head1 Reporting Bugs |