=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 v5.13.3
+XXX Add links around modules throughout
+
=head1 DESCRIPTION
This document describes differences between the 5.13.3 release and
L<perl5132delta>, which describes differences between 5.13.1 and
5.13.2.
-=head1 Notice
-
-XXX Any important notices here
-
=head1 Core Enhancements
-XXX New core language features go here. Summarise 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 ]
-
=head2 \o{...}
The escape sequence C<"\o"> in double-quotish contexts is now defined. It
See L<charnames> for details on all these changes.
-=head2 Other enhancements
-
-=over
-
-=item *
-
-Uppercase X/B allowed in hexadecimal/binary literals (RT#76296) (a674e8d)
-
-=back
-
-=head1 Security
+=head2 Uppercase X/B allowed in hexadecimal/binary literals
-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.
+Literals may now use either upper case C<0X...> or C<0B...> prefixes,
+in addition to the already supported C<0x...> and C<0b...>
+syntax. (RT#76296) (a674e8d)
-[ List each security issue as a =head2 entry ]
+C, Ruby, Python and PHP already supported this syntax, and it makes
+Perl more internally consistent. A round-trip with C<eval sprintf
+"%#X", 0x10> now returns C<16> in addition to C<eval sprintf "%#x",
+0x10>, which worked before.
=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 reports are welcome.
-
-[ List each incompatible change as a =head2 entry ]
-
=head2 \400 - \777
Use of C<\400> - C<\777> in regexes in certain circumstances has given different,
=head1 Deprecations
-XXX Any deprecated features, syntax, modules etc. should be listed here.
-In particular, deprecated modules should be listed here even if they are
-listed as an updated module in the L</Modules and Pragmata> section.
-
-[ List each deprecation as a =head2 entry ]
-
=head2 Omitting a space between regular expression and subsequent word
Omitting a space between a regex pattern or pattern modifiers and the
=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 a =item entry ]
-
=over 4
=item *
=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>, 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.
-
-[ Within each section, list entries as a =item entry ]
-
-=head2 New Modules and Pragmata
-
-=over 4
-
-=item *
-
-XXX
-
-=back
-
=head2 Updated Modules and Pragmata
XXX Make sure these get sorted, are phrased similarly and all version
File::Copy skips suid tests on a nosuid partition (cae9400)
+These tests were being skipped on OpenBSD, but nosuid partitions can
+exist on other systems too. Now it just checks if it can create a suid
+directory, if not the tests are skipped.
+
+Perl builds without errors in a nosuid /tmp with this patch.
+
=item *
IO-Compress upated to CPAN version 2.027 (e8796d6)
=item *
-Time-HiRes updated to CPAN version 1.9721 (68c5b4d)
+Term-ANSIColor to CPAN version 3.00 (2c33c76)
=item *
-Time-Piece updated to CPAN version 1.20 (90d55c2)
+Test-Harness to CPAN version 3.21 (6d31366)
=item *
-Unicode-Collate updated to CPAN version 0.53. Includes Unicode Collation
-Algorithm 18 (74b94a7)
+Time-HiRes updated to CPAN version 1.9721 (68c5b4d)
=item *
-Unicode-Normalize updated to CPAN release 1.06 (a96160d)
-
-=back
+Time-Piece updated to CPAN version 1.20 (90d55c2)
-=head2 Removed Modules and Pragmata
+=item *
-=over 4
+Unicode-Collate updated to CPAN version 0.53. Includes Unicode Collation
+Algorithm 18 (74b94a7)
=item *
-XXX
+Unicode-Normalize updated to CPAN release 1.06 (a96160d)
=back
=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>.
-
-[ Within each section, list entries as a =item entry ]
-
=head2 New Documentation
-XXX Changes which create B<new> files in F<pod/> go here.
-
=head3 L<perl5121delta>
The Perl 5.12.1 perldelta file was added from the Perl maintenance branch
=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 General changes
=over
=item *
-Octal character escapes in documentation now prefer either the C<\gDIGIT>
-escape or else a three-digit octal escape as they have less ambiguity than
-other forms of octal escapes. (ce7b6f0) (d8b950d)
+Octal character escapes in documentation now prefer a three-digit octal
+escape or the new C<\o{}> escape as they have more consistent behavior
+in different contexts than other forms. (ce7b6f0) (d8b950d) (e1f120a)
=item *
Documentation now standardizes on the term 'capture group' over 'buffer'
-in regular expression documentation(c27a5cf)
+in regular expression documentation (c27a5cf)
=back
Improved documentation of unusual character escapes (bf82ca4)
+=item *
+
+Clarifies how hexadecimal escapes are interpreted, with particular
+attention to the treatment of invalid characters. (9644846)
+
=back
=head3 L<perlrun>
=back
-=head3 L<perltie>
+=head3 L<perlre>
=over
=item *
-Some examples updated for modern Perl style (67d00dd)
-
-=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.
-
-[ Within each section, list entries as a =item entry ]
-
-=head2 New Diagnostics
-
-XXX Newly added diagnostic messages go here
-
-=over 4
-
-=item *
-
-XXX
+Added examples on the perils of not using \g{} when there are more
+than nine back-references (9d86067)
=back
-=head2 Changes to Existing Diagnostics
-
-XXX Changes (i.e. rewording) of diagnostic messages go here
+=head3 L<perltie>
-=over 4
+=over
=item *
-XXX
+Some examples updated for modern Perl style (67d00dd)
=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>.
-
=head3 L<perldb>
=over
=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 *
=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 summarising, although the bugs
-that they represent may be covered elsewhere.
-
-[ List each test improvement as a =item entry ]
-
=over 4
=item *
=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 MacOS Classic
Support for MacOS Classic within ExtUtils::MakeMaker was removed from Perl in
December 2004. Vestigial MacOS Classic specific code has now been removed
-from other core modules as well.
+from other core modules as well (8f8c2a4..c457df0).
=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 Win32
=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.
+=over 4
-[ List each improvement as a =item entry ]
+=item *
-=over 4
+Under some circumstances, the C<CvGV()> field of a CV is now reference
+counted. To ensure consistent behaviour, direct assignment to it, for
+example C<CvGV(cv) = gv> is now a compile-time error. A new macro,
+C<CvGV_set(cv,gv)> has been introduced to perform this operation safely.
+Note that modification of this field is not part of of the public API,
+regardless of this new macro. This change caused some
+L<issues|/"Known Problems"> in modules that used the private C<GvGV()>
+field.
=item *
=head1 Selected Bug Fixes
-XXX Important bug fixes in the core language are summarised here.
-Bug fixes in files in F<ext/> and F<lib/> are best summarised in
-L</Modules and Pragmata>.
+=over 4
-[ List each fix as a =item entry ]
+=item *
-=over 4
+Some work has been done on the internal pointers that link between symbol
+tables (stashes), typeglobs and subroutines. This has the effect that
+various edge cases related to deleting stashes or stash entries (e.g.
+<%FOO:: = ()>), and complex typeglob or code reference aliasing, will no
+longer crash the interpreter.
=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, unless
-they were specific to a particular platform (see below).
-
-This is a list of some significant unfixed bugs, which are regressions
-from either 5.XXX.XXX or 5.XXX.XXX.
+=over 4
-[ List each fix as a =item entry ]
+=item *
-=over 4
+Bug fixes involving CvGV reference counting break L<Sub::Name>. A
+patch has been sent upstream to the maintainer.
=item *
=back
-=head1 Obituary
-
-XXX If any significant core contributor has died, we've added a short obituary
-here.
-
=head1 Acknowledgements
XXX The list of people to thank goes here.
https://perl5.git.perl.org / perl5.git / blobdiff