If you are upgrading from an earlier release such as 5.25.2, first read
L<perl5253delta>, which describes differences between 5.25.2 and 5.25.3.
-=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 Performance Enhancements
=over 4
=back
-=head1 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.
+=head1 Documentation
-[ Within each section, list entries as a =item entry ]
+=head2 Changes to Existing Documentation
-=head2 New Modules and Pragmata
+=head3 L<perlcall>
=over 4
=item *
-XXX
+Removed redundant C<dSP> from an example.
=back
+=head1 Modules and Pragmata
+
=head2 Updated Modules and Pragmata
=over 4
=item *
-L<XXX> has been upgraded from version A.xx to B.yy.
+L<Archive::Tar> has been upgraded from version 2.08 to 2.10.
=item *
-L<NEXT> has been upgraded from version 0.65 to 0.67.
+L<arybase> has been upgraded from version 0.11 to 0.12.
-=back
+=item *
-=head2 Removed Modules and Pragmata
+L<B> has been upgraded from version 1.62 to 1.63.
-=over 4
+=item *
+
+L<B::Concise> has been upgraded from version 0.996 to 0.998.
=item *
-XXX
+L<B::Deparse> has been upgraded from version 1.37 to 1.38.
-=back
+=item *
-=head1 Diagnostics
+L<base> has been upgraded from version 2.23 to 2.24.
-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>.
+=item *
-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.
+L<bignum> has been upgraded from version 0.43 to 0.43_01.
-=head2 New Diagnostics
+=item *
-XXX Newly added diagnostic messages go under here, separated into New Errors
-and New Warnings
+L<Carp> has been upgraded from version 1.41 to 1.42.
-=head3 New Errors
+=item *
-=over 4
+L<Config::Perl::V> has been upgraded from version 0.26 to 0.27.
=item *
-XXX L<message|perldiag/"message">
+L<CPAN> has been upgraded from version 2.14 to 2.14_01.
-=back
+=item *
-=head3 New Warnings
+L<CPAN::Meta> has been upgraded from version 2.150005 to 2.150010.
-=over 4
+=item *
+
+L<Digest> has been upgraded from version 1.17 to 1.17_01.
=item *
-XXX L<message|perldiag/"message">
+L<Digest::SHA> has been upgraded from version 5.95 to 5.96.
-=back
+=item *
-=head2 Changes to Existing Diagnostics
+L<Encode> has been upgraded from version 2.84 to 2.86.
-XXX Changes (i.e. rewording) of diagnostic messages go here
+=item *
-=over 4
+L<encoding> has been upgraded from version 2.17_01 to 2.18.
=item *
-XXX Describe change here
+L<Errno> has been upgraded from version 1.25 to 1.26.
-=back
+=item *
-=head1 Utility Changes
+L<ExtUtils::MakeMaker> has been upgraded from version 7.18 to 7.24.
-XXX Changes to installed programs such as F<perlbug> and F<xsubpp> go here.
-Most of these are built within the directory F<utils>.
+=item *
-[ 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. ]
+L<File::Fetch> has been upgraded from version 0.48 to 0.52.
-=head2 L<XXX>
+=item *
-=over 4
+L<File::Spec> has been upgraded from version 3.64 to 3.65.
=item *
-XXX
+L<Hash::Util> has been upgraded from version 0.20 to 0.21.
-=back
+=item *
-=head1 Configuration and Compilation
+L<HTTP::Tiny> has been upgraded from version 0.058 to 0.064.
+
+=item *
-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.
+L<I18N::LangTags> has been upgraded from version 0.40 to 0.41.
-[ List changes as a =item entry ].
+=item *
-=over 4
+L<IO> has been upgraded from version 1.36 to 1.37.
=item *
-XXX
+L<IO-Compress> has been upgraded from version 2.069 to 2.069_01.
-=back
+=item *
-=head1 Testing
+L<IO::Socket::IP> has been upgraded from version 0.37 to 0.38.
-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.
+=item *
-[ List each test improvement as a =item entry ]
+L<IPC::Cmd> has been upgraded from version 0.94 to 0.96.
-=over 4
+=item *
+
+L<JSON::PP> has been upgraded from version 2.27400 to 2.27400_01.
=item *
-XXX
+L<Locale::Maketext> has been upgraded from version 1.27 to 1.28.
-=back
+=item *
-=head1 Platform Support
+L<Locale::Maketext::Simple> has been upgraded from version 0.21 to 0.21_01.
-XXX Any changes to platform support should be listed in the sections below.
+=item *
-[ Within the sections, list each platform as a =item entry with specific
-changes as paragraphs below it. ]
+L<Memoize> has been upgraded from version 1.03 to 1.03_01.
-=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.
+L<Module::CoreList> has been upgraded from version 5.20160720 to 5.20160820.
-=over 4
+=item *
-=item XXX-some-platform
+L<Module::Load::Conditional> has been upgraded from version 0.64 to 0.68.
-XXX
+=item *
-=back
+L<Module::Metadata> has been upgraded from version 1.000032 to 1.000033.
+
+=item *
-=head2 Discontinued Platforms
+L<Net::Ping> has been upgraded from version 2.43 to 2.44.
-XXX List any platforms that this version of perl no longer compiles on.
+=item *
+
+L<NEXT> has been upgraded from version 0.65 to 0.67.
+
+=item *
+
+L<Opcode> has been upgraded from version 1.35 to 1.37.
+
+=item *
+
+L<Pod::Html> has been upgraded from version 1.22 to 1.2201.
+
+=item *
+
+L<Pod::Perldoc> has been upgraded from version 3.25_02 to 3.27.
+
+=item *
+
+L<POSIX> has been upgraded from version 1.70 to 1.71.
+
+=item *
+
+L<Storable> has been upgraded from version 2.56 to 2.57.
+
+=item *
+
+L<Sys::Syslog> has been upgraded from version 0.34 to 0.34_01.
+
+=item *
+
+L<Test> has been upgraded from version 1.28 to 1.29.
+
+=item *
+
+L<Test::Harness> has been upgraded from version 3.36 to 3.36_01.
+
+=item *
+
+L<Test::Simple> has been upgraded from version 1.302045 to 1.302052.
+
+=item *
+
+L<Tie::Hash::NamedCapture> has been upgraded from version 0.09 to 0.10.
+
+=item *
+
+L<Time::Local> has been upgraded from version 1.2300 to 1.24.
+
+=back
+
+=head1 Configuration and Compilation
=over 4
-=item XXX-some-platform
+=item *
-XXX
+A probe for C<gai_strerror> was added to F<Configure> that checks if the
+the gai_strerror() routine is available and can be used to
+translate error codes returned by getaddrinfo() into human
+readable strings.
=back
-=head2 Platform-Specific Notes
+=head1 Platform Support
-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.
+=head2 Platform-Specific Notes
=over 4
=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 *
=back
-=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 *
-
-XXX
-
-=back
-
-=head1 Errata From Previous Releases
-
-=over 4
-
-=item *
+=head1 Acknowledgements
-XXX Add anything here that we forgot to add, or were mistaken about, in
-the perldelta of a previous release.
+Perl 5.25.4 represents approximately 4 weeks of development since Perl 5.25.3
+and contains approximately 18,000 lines of changes across 820 files from 23
+authors.
-=back
+Excluding auto-generated files, documentation and release tools, there were
+approximately 9,200 lines of changes to 660 .pm, .t, .c and .h files.
-=head1 Obituary
+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 5.25.4:
-XXX If any significant core contributor has died, we've added a short obituary
-here.
+Chris 'BinGOs' Williams, Craig A. Berry, Dagfinn Ilmari Mannsåker, Dan
+Collins, Daniel Dragan, David Mitchell, Father Chrysostomos, H.Merijn Brand,
+James E Keenan, Jarkko Hietaniemi, Karen Etheridge, Karl Williamson, Lukas Mai,
+Neil Bowers, Nicolas R., Pino Toscano, Rafael Garcia-Suarez, Richard Levitte,
+Shlomi Fish, Smylers, Steve Hay, Tony Cook, Yves Orton.
-=head1 Acknowledgements
+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.
-XXX Generate this with:
+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.
- perl Porting/acknowledgements.pl v5.25.3..HEAD
+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 / blobdiff