=head1 NAME
-[ 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 v5.19.2
=head1 DESCRIPTION
If you are upgrading from an earlier release such as 5.19.0, first read
L<perl5191delta>, which describes differences between 5.19.0 and 5.19.1.
-=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.
-
=head2 More consistent prototype parsing
Multiple semicolons in subroutine prototypes have long been tolerated and
and the parser no longer strips whitespace. This means
C<prototype &mysub> returns the original prototype, whitespace and all.
-=head1 Security
+=head1 Performance Enhancements
-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.
+=over 4
-[ List each security issue as a =head2 entry ]
+=item *
-=head1 Incompatible Changes
+Precomputed hash values are now used in more places during method lookup.
-XXX For a release on a stable branch, this section aspires to be:
+=back
- 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.
+=head1 Modules and Pragmata
-[ List each incompatible change as a =head2 entry ]
+=head2 Updated Modules and Pragmata
-=head1 Deprecations
+=over 4
-XXX Any deprecated features, syntax, modules etc. should be listed here.
+=item *
-=head2 Module removals
+L<autodie> has been upgraded from version 2.19 to 2.20.
-XXX Remove this section if inapplicable.
+=item *
-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.
+L<B> has been upgraded from version 1.43 to 1.44.
-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.
+=item *
-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.
+L<B::Concise> has been upgraded from version 0.96 to 0.98.
-=over
+=item *
-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.
+L<B::Deparse> has been upgraded from version 1.21 to 1.22.
-=back
+=item *
-[ List each other deprecation as a =head2 entry ]
+L<base> has been upgraded from version 2.18 to 2.19.
-=head1 Performance Enhancements
+=item *
-XXX Changes which enhance performance without changing behaviour go here.
-There may well be none in a stable release.
+L<Benchmark> has been upgraded from version 1.16 to 1.17.
-[ List each enhancement as a =item entry ]
+=item *
-=over 4
+L<Class::Struct> has been upgraded from version 0.64 to 0.65.
=item *
-XXX
+L<Data::Dumper> has been upgraded from version 2.146 to 2.147.
-=back
+=item *
-=head1 Modules and Pragmata
+L<DB_File> has been upgraded from version 1.828 to 1.829.
-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>, which prints stub
-entries to STDOUT. Results can be pasted in place of the '=head2' entries
-below. 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.
+=item *
-[ Within each section, list entries as a =item entry ]
+L<DBM_Filter> has been upgraded from version 0.05 to 0.06.
-=head2 New Modules and Pragmata
+=item *
-=over 4
+L<Devel::Peek> has been upgraded from version 1.11 to 1.12.
=item *
-XXX
+L<Digest::MD5> has been upgraded from version 2.52 to 2.53.
-=back
+=item *
-=head2 Updated Modules and Pragmata
+L<Digest::SHA> has been upgraded from version 5.84 to 5.85.
-=over 4
+=item *
+
+L<English> has been upgraded from version 1.06 to 1.07.
+
+=item *
+
+L<Errno> has been upgraded from version 1.18 to 1.19.
=item *
=item *
+L<ExtUtils::ParseXS> has been upgraded from version 3.19 to 3.21.
+
+=item *
+
+L<File::Basename> has been upgraded from version 2.84 to 2.85.
+
+=item *
+
+L<Getopt::Long> has been upgraded from version 2.4 to 2.41.
+
+=item *
+
+L<Getopt::Std> has been upgraded from version 1.08 to 1.09.
+
+=item *
+
+L<Hash::Util::FieldHash> has been upgraded from version 1.11 to 1.12.
+
+=item *
+
+L<HTTP::Tiny> has been upgraded from version 0.031 to 0.034.
+
+=item *
+
+L<I18N::Langinfo> has been upgraded from version 0.10 to 0.11.
+
+=item *
+
+L<if> has been upgraded from version 0.0602 to 0.0603.
+
+=item *
+
+L<IPC::Cmd> has been upgraded from version 0.80 to 0.82.
+
+=item *
+
+L<MIME::Base64> has been upgraded from version 3.13 to 3.14.
+
+=item *
+
+L<Module::CoreList> has been upgraded from version 2.92 to 2.94.
+
+=item *
+
+L<Params::Check> has been upgraded from version 0.36 to 0.38.
+
+=item *
+
+L<Parse::CPAN::Meta> has been upgraded from version 1.4404 to 1.4405.
+
+=item *
+
+L<Pod::Functions> has been upgraded from version 1.06 to 1.07.
+
+=item *
+
+L<Pod::Html> has been upgraded from version 1.19 to 1.2.
+
+=item *
+
L<POSIX> has been upgraded from version 1.33 to 1.34.
C<POSIX::AUTOLOAD> will no longer infinitely recurse if the shared
=item *
-L<Storable> has been upgraded from version 2.43 to 2.44.
+L<Safe> has been upgraded from version 2.36 to 2.37.
-Calling C<STORABLE_attach> hooks no longer leaks memory. [perl #118829]
+=item *
-=back
+L<Socket> has been upgraded from version 2.009 to 2.010.
-=head2 Removed Modules and Pragmata
+=item *
-=over 4
+L<Storable> has been upgraded from version 2.43 to 2.45.
-=item *
+Calling C<STORABLE_attach> hooks no longer leaks memory. [perl #118829]
-XXX
+=item *
-=back
+L<Text::ParseWords> has been upgraded from version 3.28 to 3.29.
-=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<Tie::Hash> has been upgraded from version 1.04 to 1.05.
-=head2 New Documentation
+=item *
-XXX Changes which create B<new> files in F<pod/> go here.
+L<Time::Piece> has been upgraded from version 1.2002 to 1.21.
-=head3 L<XXX>
+=back
-XXX Description of the purpose of the new file here
+=head1 Documentation
=head2 Changes to Existing Documentation
-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.
-
=head3 L<perlexperiment>
=over 4
=back
-=head1 Diagnostics
+=head3 L<perlop>
-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>.
+=over 4
-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.
+=item *
-=head2 New Diagnostics
+The language design of Perl has always called for monomorphic operators.
+This is now mentioned explicitly.
-XXX Newly added diagnostic messages go under here, separated into New Errors
-and New Warnings
+=back
-=head3 New Errors
+=head3 L<perlre>
=over 4
=item *
-XXX L<message|perldiag/"message">
+The fact that the regexp engine makes no effort to call (?{}) and (??{})
+constructs any specified number of times (although it will basically DWIM
+in case of a successful match) has been documented.
=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>.
+
+=head2 New Diagnostics
+
=head3 New Warnings
=over 4
=head2 Changes to Existing Diagnostics
-XXX Changes (i.e. rewording) of diagnostic messages go here
-
=over 4
=item *
=back
-=head1 Utility Changes
-
-XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here.
-Most of these are built within the directories F<utils> and F<x2p>.
-
-[ List utility changes as a =head3 entry for each utility and =item
-entries for each change
-Use L<XXX> with program names to get proper documentation linking. ]
-
-=head3 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 a =item entry ].
-
=over 4
=item *
=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.
-
-[ List each test improvement as a =item entry ]
-
-=over 4
-
-=item *
-
-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 a =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 MidnightBSD
=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 a =item entry ]
-
=over 4
=item *
=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 a =item entry ]
-
=over 4
=item *
=item *
-Under copy-on-write builds (the default as of 5.19.1) C<${'_<-e'}[0]> no
-longer gets mangled. This is the first line of input saved for the
+Under copy-on-write builds (the default as of 5.19.1) C<< ${'_<-e'}[0] >>
+no longer gets mangled. This is the first line of input saved for the
debugger's use for one-liners [perl #118627].
=item *
=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 a =item entry ]
-
=over 4
=item *
=back
-=head1 Obituary
-
-XXX If any significant core contributor has died, we've added a short obituary
-here.
-
=head1 Acknowledgements
-XXX Generate this with:
-
- perl Porting/acknowledgements.pl v5.19.1..HEAD
+Perl 5.19.2 represents approximately 4 weeks of development since Perl 5.19.1
+and contains approximately 15,000 lines of changes across 400 files from 40
+authors.
+
+Perl continues to flourish into its third decade thanks to a vibrant community
+of users and developers. The following people are known to have contributed the
+improvements that became Perl 5.19.2:
+
+Abhijit Menon-Sen, Alexandr Ciornii, Andy Dougherty, Aristotle Pagaltzis, Brian
+Fraser, Brian Gottreu, Chris 'BinGOs' Williams, Craig A. Berry, Dagfinn Ilmari
+Mannsåker, Daniel Dragan, David Golden, David Mitchell, Ed Avis, Father
+Chrysostomos, Graham Knop, H.Merijn Brand, Hojung Youn, James E Keenan, Johan
+Vromans, Karl Williamson, Keedi Kim, Kent Fredric, Lukas Mai, Moritz Lenz,
+Nathan Trapuzzano, Neil Bowers, Nicholas Clark, Niels Thykier, Niko Tyni,
+Olivier Mengué, Peter Martini, Petr Písař, Reini Urban, Ricardo Signes,
+Ruslan Zakirov, Slaven Rezic, Steffen Müller, Tony Cook, Vladimir Timofeev,
+Yves Orton.
+
+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.
+
+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.
+
+For a more complete list of all of Perl's historical contributors, please see
+the F<AUTHORS> file in the Perl source distribution.
=head1 Reporting Bugs
https://perl5.git.perl.org / perl5.git / commitdiff