perldelta: replace contents with perl5183delta contents

2 files changed, 52 insertions, 305 deletions

diff --git a/pod/perl5183delta.pod b/pod/perl5183delta.pod
index 83e032de6e..c10ef1490b 100644
--- a/pod/perl5183delta.pod
+++ b/pod/perl5183delta.pod
@@ -2,7 +2,7 @@
 
 =head1 NAME
 
-perldelta - what is new for perl v5.18.3
+perl5183delta - what is new for perl v5.18.3
 
 =head1 DESCRIPTION
 
diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index 7df7d74fc9..547779ee73 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -2,373 +2,119 @@
 
 =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 v5.18.4
 
 =head1 DESCRIPTION
 
-This document describes differences between the 5.18.3 release and the 5.18.4
-release.
-
-If you are upgrading from an earlier release such as 5.18.2, first read
-L<perl5183delta>, which describes differences between 5.18.2 and 5.18.3.
-
-=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.
-
-[ 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 inapplicable.
-
-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.
+This document describes differences between the 5.18.4 release and the 5.18.2
+release.  B<Please note:>  This document ignores perl 5.18.3, a broken release
+which existed for a few hours only.
 
-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 a =item entry ]
-
-=over 4
-
-=item *
-
-XXX
-
-=back
+If you are upgrading from an earlier release such as 5.18.1, first read
+L<perl5182delta>, which describes differences between 5.18.1 and 5.18.2.
 
 =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
 
 =over 4
 
 =item *
 
-L<XXX> has been upgraded from version A.xx to B.yy.
-
-=back
-
-=head2 Removed Modules and Pragmata
-
-=over 4
+L<Digest::SHA> has been upgraded from 5.84_01 to 5.84_02.
 
 =item *
 
-XXX
-
-=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>.
-
-=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
+L<perl5db.pl> has been upgraded from version 1.39_10 to 1.39_11.
 
-=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<XXX>
-
-=over 4
-
-=item *
-
-XXX Description of the change here
+This fixes a crash in tab completion, where available. [perl #120827]  Also,
+filehandle information is properly reset after a pager is run. [perl #121456]
 
 =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
+=head1 Platform Support
 
-=head3 New Errors
+=head2 Platform-Specific Notes
 
 =over 4
 
-=item *
-
-XXX L<message|perldiag/"message">
-
-=back
-
-=head3 New Warnings
+=item Win32
 
 =over 4
 
 =item *
 
-XXX L<message|perldiag/"message">
+Introduced by
+L<perl #113536|https://rt.perl.org/Public/Bug/Display.html?id=113536>, a memory
+leak on every call to C<system> and backticks (C< `` >), on most Win32 Perls
+starting from 5.18.0 has been fixed.  The memory leak only occurred if you
+enabled psuedo-fork in your build of Win32 Perl, and were running that build on
+Server 2003 R2 or newer OS.  The leak does not appear on WinXP SP3.
+[L<perl #121676|https://rt.perl.org/Public/Bug/Display.html?id=121676>]
 
 =back
 
-=head2 Changes to Existing Diagnostics
-
-XXX Changes (i.e. rewording) of diagnostic messages go here
-
-=over 4
-
-=item *
-
-XXX Describe change here
-
 =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>
+=head1 Selected Bug Fixes
 
 =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
+The debugger now properly resets filehandles as needed. [perl #121456]
 
 =item *
 
-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.
-
-[ List each test improvement as a =item entry ]
-
-=over 4
+A segfault in Digest::SHA has been addressed.  [perl #121421]
 
 =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 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 a =item entry ]
-
-=over 4
+perl can again be built with USE_64_BIT_INT, with Visual C 2003, 32 bit.
+[perl #120925]
 
 =item *
 
-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>.
+A leading { (brace) in formats is properly parsed again. [perl #119973]
 
-[ List each fix as a =item entry ]
+=item *
 
-=over 4
+Copy the values used to perturb hash iteration when cloning an
+interpreter.  This was fairly harmless but caused C<valgrind> to
+complain. [perl #121336]
 
 =item *
 
-XXX
+In Perl v5.18 C<undef *_; goto &sub> and C<local *_; goto &sub> started
+crashing.  This has been fixed. [perl #119949]
 
 =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
+=head1 Acknowledgements
 
-=back
+Perl 5.18.4 represents approximately 9 months of development since Perl 5.18.2
+and contains approximately 2,000 lines of changes across 53 files from 13
+authors.
 
-=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 5.18.4:
 
-XXX If any significant core contributor has died, we've added a short obituary
-here.
+Daniel Dragan, David Mitchell, Doug Bell, Father Chrysostomos, Hiroo Hayashi,
+James E Keenan, Karl Williamson, Mark Shelor, Ricardo Signes, Shlomi Fish,
+Smylers, Steve Hay, Tony Cook.
 
-=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 v5.18.3..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
 
@@ -404,3 +150,4 @@ The F<README> file for general stuff.
 The F<Artistic> and F<Copying> files for copyright information.
 
 =cut
+