Finalise perldelta for 5.19.10

1 files changed, 126 insertions, 256 deletions

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index aba96ba5b4..c78073b1c3 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -2,9 +2,6 @@
 
 =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 v5.19.10
 
 =head1 DESCRIPTION
@@ -15,40 +12,8 @@ release.
 If you are upgrading from an earlier release such as 5.19.8, first read
 L<perl5199delta>, which describes differences between 5.19.8 and 5.19.9.
 
-=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 Discouraged features
 
 =over 4
@@ -65,42 +30,8 @@ L<discouraged|perlpolicy/discouraged>.
 
 =back
 
-=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.
-
-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 *
@@ -169,27 +100,21 @@ up to three ranges of consecutive code points.
 
 =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.
-
-[ Within each section, list entries as a =item entry ]
-
-=head2 New Modules and Pragmata
+=head2 Updated Modules and Pragmata
 
 =over 4
 
 =item *
 
-XXX
+L<Attribute::Handlers> has been upgraded from version 0.95 to 0.96.
 
-=back
+=item *
 
-=head2 Updated Modules and Pragmata
+L<autouse> has been upgraded from version 1.07 to 1.08.
 
-=over 4
+=item *
+
+L<B::Deparse> has been upgraded from version 1.25 to 1.26.
 
 =item *
 
@@ -200,157 +125,179 @@ overrides. [perl #121196]
 
 =item *
 
+L<Carp> has been upgraded from version 1.32 to 1.33.
+
+=item *
+
+L<charnames> has been upgraded from version 1.39 to 1.40.
+
+=item *
+
+L<CPAN> has been upgraded from version 2.03 to 2.04.
+
+Fixes a bug preventing "force install" from working. [cpan #91706]
+
+Fixes an infinite-loop bug when using the C<make> command in the CPAN
+shell. [cpan #86915]
+
+=item *
+
 L<CPAN::Meta> has been upgraded from version 2.133380 to 2.140640.
 
 Added a C<load_string()> method that guesses whether the string is YAML or JSON.
 
 =item *
 
-L<HTTP::Tiny> has been upgraded from version 0.042 to 0.043.
+L<CPAN::Meta::YAML> has been upgraded from version 0.011 to 0.012.
 
-No longer sends absolute request URI when tunneling SSL via proxy and fixes
-regression in setting host name to verify SSL.
+=item *
+
+L<Data::Dumper> has been upgraded from version 2.150 to 2.151.
 
 =item *
 
-L<Locale::Codes> has been upgraded from version 3.29 to 3.30.
+L<Devel::PPPort> has been upgraded from version 3.21 to 3.22.
 
-Fixed a problem that was preventing rename_* functions to work.  [cpan #92680]
+=item *
+
+L<Digest::SHA> has been upgraded from version 5.87 to 5.88.
 
 =item *
 
-L<Module::Load> has been upgraded from version 0.30 to 0.32.
+L<ExtUtils::Install> has been upgraded from version 1.62 to 1.63.
 
-Fix tests to support statically built perls.
+=item *
+
+L<ExtUtils::MakeMaker> has been upgraded from version 6.88 to 6.92.
 
 =item *
 
-L<Parse::CPAN::Meta> has been upgraded from version 1.4413 to 1.4414.
+L<ExtUtils::ParseXS> has been upgraded from version 3.23 to 3.24.
 
-Added C<load_string>, which uses heuristics to guess YAML/JSON content.
-C<load_file> will now attempt to detect YAML/JSON content if the suffix is not
-.json, .yml or .yaml.
+=item *
 
-=back
+L<ExtUtils::Typemaps> has been upgraded from version 3.23 to 3.24.
 
-=head2 Removed Modules and Pragmata
+=item *
 
-=over 4
+L<feature> has been upgraded from version 1.35 to 1.36.
 
 =item *
 
-XXX
+L<File::Find> has been upgraded from version 1.26 to 1.27.
 
-=back
+=item *
 
-=head1 Documentation
+L<Filter::Simple> has been upgraded from version 0.90 to 0.91.
 
-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>.
+=item *
 
-=head2 New Documentation
+L<Hash::Util::FieldHash> has been upgraded from version 1.14 to 1.15.
 
-XXX Changes which create B<new> files in F<pod/> go here.
+=item *
 
-=head3 L<XXX>
+L<HTTP::Tiny> has been upgraded from version 0.042 to 0.043.
 
-XXX Description of the purpose of the new file here
+No longer sends absolute request URI when tunneling SSL via proxy and fixes
+regression in setting host name to verify SSL.
 
-=head2 Changes to Existing Documentation
+=item *
 
-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<IO> has been upgraded from version 1.30 to 1.31.
 
-=head3 L<perllexwarn> and L<warnings>
+=item *
 
-=over 4
+L<IO::Socket::IP> has been upgraded from version 0.28 to 0.29.
 
 =item *
 
-The L<perllexwarn> documentation used to describe the hierarchy of warning
-categories understood by the L<warnings> pragma. That description has now
-been moved to the L<warnings> documentation itself, leaving L<perllexwarn>
-as a stub that points to it. This change consolidates all documentation for
-lexical warnings in a single place.
+L<Locale::Codes> has been upgraded from version 3.29 to 3.30.
 
-=back
+Fixed a problem that was preventing rename_* functions to work.  [cpan #92680]
 
-=head1 Diagnostics
+=item *
 
-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>.
+L<Module::CoreList> has been upgraded from version 3.06 to 3.09.
 
-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
+L<Module::Load> has been upgraded from version 0.30 to 0.32.
 
-XXX Newly added diagnostic messages go under here, separated into New Errors
-and New Warnings
+Fix tests to support statically built perls.
 
-=head3 New Errors
+=item *
 
-=over 4
+L<mro> has been upgraded from version 1.15 to 1.16.
 
 =item *
 
-XXX L<message|perldiag/"message">
+L<Parse::CPAN::Meta> has been upgraded from version 1.4413 to 1.4414.
 
-=back
+Added C<load_string>, which uses heuristics to guess YAML/JSON content.
+C<load_file> will now attempt to detect YAML/JSON content if the suffix is not
+.json, .yml or .yaml.
 
-=head3 New Warnings
+=item *
 
-=over 4
+L<Pod::Perldoc> has been upgraded from version 3.21 to 3.23.
+
+=item *
+
+L<POSIX> has been upgraded from version 1.38_02 to 1.38_03.
+
+=item *
+
+L<Thread::Queue> has been upgraded from version 3.02 to 3.05.
+
+=item *
+
+L<threads> has been upgraded from version 1.92 to 1.93.
+
+=item *
+
+L<warnings> has been upgraded from version 1.22 to 1.23.
 
 =item *
 
-XXX L<message|perldiag/"message">
+L<XS::Typemap> has been upgraded from version 0.12 to 0.13.
 
 =back
 
-=head2 Changes to Existing Diagnostics
+=head1 Documentation
 
-XXX Changes (i.e. rewording) of diagnostic messages go here
+=head2 Changes to Existing Documentation
 
 =over 4
 
 =item *
 
-When C<use re "debug"> executes a regex containing a backreference, the
-debugging output now shows what string is being matched.
+The L<perllexwarn> documentation used to describe the hierarchy of warning
+categories understood by the L<warnings> pragma. That description has now
+been moved to the L<warnings> documentation itself, leaving L<perllexwarn>
+as a stub that points to it. This change consolidates all documentation for
+lexical warnings in a single place.
 
 =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>.
+=head1 Diagnostics
 
-[ 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. ]
+The following changes have been made to diagnostic output,
+including warnings and fatal error messages.  For the complete list of
+diagnostic messages, see L<perldiag>.
 
-=head3 L<XXX>
+=head2 Changes to Existing Diagnostics
 
 =over 4
 
 =item *
 
-XXX
+When C<use re "debug"> executes a regex containing a backreference, the
+debugging output now shows what string is being matched.
 
 =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 *
@@ -370,14 +317,6 @@ link-time optimization enabled (the C<-flto> option). [perl #113022]
 
 =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 *
@@ -398,73 +337,22 @@ that additional cost. [perl #121431]
 
 =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.
-
-=head3 Linux
-
 =over 4
 
-=item *
+=item Linux
 
 The hints file now looks for C<libgdbm_compat> only if C<libgdbm> itself is
 also wanted. The former is never useful without the latter, and in some
 circumstances, including it could actually prevent building.
 
-=back
-
-=head3 Mac OS
-
-=over 4
-
-=item *
+=item Mac OS
 
 The build system now honours an C<ld> setting supplied by the user running
 F<Configure>.
 
-=back
-
-=head3 Win32
-
-=over 4
-
-=item *
+=item Win32
 
 Killing a process tree with L<perlfunc/kill> and a negative signal, was broken
 starting in 5.18.0. In this bug, C<kill> always returned 0 for a negative
@@ -475,12 +363,6 @@ fixed [perl #121230].
 
 =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 *
@@ -500,11 +382,6 @@ deprecation will help anyone who is using that variable.
 
 =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 *
@@ -520,43 +397,36 @@ execution of the subpattern call. [perl #121299]
 
 =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
+=head1 Acknowledgements
 
-=item *
+Perl 5.19.10 represents approximately 4 weeks of development since Perl 5.19.9
+and contains approximately 13,000 lines of changes across 330 files from 20
+authors.
 
-XXX Add anything here that we forgot to add, or were mistaken about, in
-the perldelta of a previous release.
+Excluding auto-generated files, documentation and release tools, there were
+approximately 8,800 lines of changes to 220 .pm, .t, .c and .h files.
 
-=back
+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 5.19.10:
 
-=head1 Obituary
+Aaron Crane, Andy Dougherty, Aristotle Pagaltzis, Chris 'BinGOs' Williams,
+Craig A. Berry, Daniel Dragan, David Mitchell, Father Chrysostomos, H.Merijn
+Brand, Jerry D. Hedden, Karl Williamson, Matthew Horsfall, Nicholas Clark, Paul
+Johnson, Peter Rabbitson, Ricardo Signes, Steffen Müller, Steve Hay, Tony
+Cook, Yves Orton.
 
-XXX If any significant core contributor has died, we've added a short obituary
-here.
-
-=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 v5.18.0..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