pick perl5123delta.pod from maint-5.12

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+=encoding utf8
+
+=head1 NAME
+
+perldelta - what is new for perl v5.12.3
+
+=head1 DESCRIPTION
+
+This document describes differences between the 5.12.2 release and
+the 5.12.3 release.
+
+If you are upgrading from an earlier release such as 5.12.1, first read
+L<perl5122delta>, which describes differences between 5.12.1 and
+5.12.2.  The major changes made in 5.12.0 are described in L<perl5120delta>.
+
+=head1 Incompatible Changes
+
+    There are no changes intentionally incompatible with 5.12.2. If any
+    exist, they are bugs and reports are welcome.
+
+=head1 Core Enhancements
+
+=head2 C<keys>, C<values> work on arrays
+
+You can now use the C<keys>, C<values>, C<each> builtin functions on arrays
+(previously you could only use them on hashes).  See L<perlfunc> for details.
+This is actually a change introduced in perl 5.12.0, but it was missed from
+that release's perldelta.
+
+=head1 Bug Fixes
+
+"no VERSION" will now correctly deparse with B::Deparse, as will certain
+constant expressions.
+
+Module::Build should be more reliably pass its tests under cygwin.
+
+lvalue sub return values are now COW.
+
+=head1 Platform Specific Notes
+
+=over 4
+
+=item Solaris
+
+A separate DTrace is now build for miniperl, which means that perl can be
+compiled with -Dusedtrace on Solaris again.
+
+=item VMS
+
+A number of regressions on VMS have been fixed.  In addition to minor cleanup
+of questionable expressions in F<vms.c>, file permissions should no longer be
+garbled by the PerlIO layer, and spurious record boundaries should no longer be
+introduced by the PerlIO layer during output.
+
+For more details and discussion on the latter, see:
+
+    http://www.nntp.perl.org/group/perl.vmsperl/2010/11/msg15419.html
+
+=item VOS
+
+A few very small changes were made to the build process on VOS to better
+support the platform.  Longer-than-32-character filenames are now supported on
+OpenVOS, and build properly without IPv6 support.
+
+=back
+
+=head1 Acknowledgements
+
+Perl 5.12.3 represents approximately four months of development since
+Perl 5.12.2 and contains approximately 2500 lines of changes across
+54 files from 16 authors.
+
+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 5.12.3:
+
+Craig A. Berry, David Golden, David Leadbeater, Father Chrysostomos, Florian
+Ragwitz, Jesse Vincent, Karl Williamson, Nick Johnston, Nicolas Kaiser, Paul
+Green, Rafael Garcia-Suarez, Rainer Tammer, Ricardo Signes, Steffen Mueller,
+Zsbán Ambrus, Ævar Arnfjörð Bjarmason
+
+=head1 Reporting Bugs
+
+If you find what you think is a bug, you might check the articles
+recently posted to the comp.lang.perl.misc newsgroup and the perl
+bug database at http://rt.perl.org/perlbug/ .  There may also be
+information at http://www.perl.org/ , the Perl Home Page.
+
+If you believe you have an unreported bug, please run the B<perlbug>
+program included with your release.  Be sure to trim your bug down
+to a tiny but sufficient test case.  Your bug report, along with the
+output of C<perl -V>, will be sent off to perlbug@perl.org to be
+analysed by the Perl porting team.
+
+If the bug you are reporting has security implications, which make it
+inappropriate to send to a publicly archived mailing list, then please send
+it to perl5-security-report@perl.org. This points to a closed subscription
+unarchived mailing list, which includes all the core committers, who be able
+to help assess the impact of issues, figure out a resolution, and help
+co-ordinate the release of patches to mitigate or fix the problem across all
+platforms on which Perl is supported. Please only use this address for
+security issues in the Perl core, not for modules independently
+distributed on CPAN.
+
+=head1 SEE ALSO
+
+The F<Changes> file for an explanation of how to view exhaustive details
+on what changed.
+
+The F<INSTALL> file for how to build Perl.
+
+The F<README> file for general stuff.
+
+The F<Artistic> and F<Copying> files for copyright information.
+
+=cut