Update perldelta.

Added a few issues from git log v5.19.6..HEAD that had not been added
to perldelta yet.

Removed sections that will not be needed in the final version.

1 files changed, 21 insertions, 183 deletions

diff --git a/pod/perldelta.pod b/pod/perldelta.pod
index b8f7c5a828..34bddeb35f 100644
--- a/pod/perldelta.pod
+++ b/pod/perldelta.pod
@@ -1,14 +1,7 @@
 =encoding utf8
 
-=for todo
-0ac75573 First steps to resolving RT #120618
-09a65838 Avoid pointer churn in study_chunk recursion bitmap allocation
-
 =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 v5.19.7
 
 =head1 DESCRIPTION
@@ -19,42 +12,16 @@ release.
 If you are upgrading from an earlier release such as 5.19.5, first read
 L<perl5196delta>, which describes differences between 5.19.5 and 5.19.6.
 
-=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 ]
-
 =head2 Postfix syntax for maximum array index
 
 The postfix notation C<< ->$#* >> has been added, to match the similar
 postfix operators added in 5.19.5.  C<< $foo->$#* >> is equivalent to
 C<$#$foo>.  See L<perlref>.
 
-=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 ]
-
 =head2 Data::Dumper's output may change
 
 Depending on the data structures dumped and the settings set for
@@ -69,8 +36,6 @@ from evaluating the dumped structure, instead of the dump itself.
 
 =head1 Deprecations
 
-XXX Any deprecated features, syntax, modules etc. should be listed here.
-
 =head2 Module removals
 
 XXX Remove this section if inapplicable.
@@ -96,22 +61,9 @@ 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
+=head2 C<< CGI.pm >>
 
-=back
+The C<< CGI.pm >> module has been deprecated since version 3.64.
 
 =head1 Modules and Pragmata
 
@@ -195,30 +147,6 @@ XXX
 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
-
-=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
-
-=back
-
 =head1 Diagnostics
 
 The following additions or changes have been made to diagnostic output,
@@ -230,19 +158,6 @@ 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
-
-=head3 New Errors
-
-=over 4
-
-=item *
-
-XXX L<message|perldiag/"message">
-
-=back
-
 =head3 New Warnings
 
 =over 4
@@ -271,50 +186,19 @@ The error messages for C<my($a?$b$c)> and C<my(do{})> now mention
 
 =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>
+=head3 C<< Porting/corelist-perldelta.pl >>
 
 =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 *
-
-XXX
+Ensure that the latest version of Module::CoreList is used when
+running the script.
 
 =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 *
@@ -327,45 +211,8 @@ C<$GIT_DIR>. [perl #120505]
 
 =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 Windows
@@ -377,12 +224,6 @@ cover the dmake makefile (win32/makefile.mk) as well.
 
 =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 *
@@ -414,11 +255,6 @@ with a NULL litteral or passing the C<sv> containing a NULL value.
 
 =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 *
@@ -479,29 +315,31 @@ holds a true value, to read unallocated memory has been resolved.  This
 would usually happen after a syntax error.  In past versions of Perl it has
 crashed intermittently. [perl #72406]
 
-=back
-
-=head1 Known Problems
+=item *
 
-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.
+Fix HP-UX $! failure. HP-UX strerror() returns an empty string for an
+unknown error code.  This caused an assertion to fail under DEBUGGING
+builds.  This patch removes the assertion and changes the return into
+a non-empty string indicating the errno is for an unknown error.
 
-[ List each fix as a =item entry ]
+=item *
 
-=over 4
+Fix unexpected tainting via regexp using locale. Previously, under certain
+conditions, the use of character classes could cause tainting when it 
+shouldn't. Some character classes are locale-dependent, but before this
+patch, sometimes tainting was happening even for character classes that
+don't depend on the locale. [perl #120675]
 
 =item *
 
-XXX
+Under certain conditions, Perl would throw an error if in an lookbehind
+assertion in a regexp, the assertion referred to a named subpattern,
+complaining the lookbehind was variable when it wasn't. This has been
+fixed. [perl #120600], [perl #120618]. The current fix may be improved
+on in the future.
 
 =back
 
-=head1 Obituary
-
-XXX If any significant core contributor has died, we've added a short obituary
-here.
-
 =head1 Acknowledgements
 
 XXX Generate this with: