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-=encoding utf8
-
-=head1 NAME
-
-perl5121delta - what is new for perl v5.12.1
-
-=head1 DESCRIPTION
-
-This document describes differences between the 5.12.0 release and
-the 5.12.1 release.
-
-If you are upgrading from an earlier release such as 5.10.1, first read
-L<perl5120delta>, which describes differences between 5.10.1 and
-5.12.0.
-
-=head1 Incompatible Changes
-
-There are no changes intentionally incompatible with 5.12.0. If any
-incompatibilities with 5.12.0 exist, they are bugs. Please report them.
-
-=head1 Core Enhancements
-
-Other than the bug fixes listed below, there should be no user-visible
-changes to the core language in this release.
-
-=head1 Modules and Pragmata
-
-=head2 Pragmata Changes
-
-=over
-
-=item *
-
-We fixed exporting of C<is_strict> and C<is_lax> from L<version>.
-
-These were being exported with a wrapper that treated them as method
-calls, which caused them to fail. They are just functions, are
-documented as such, and should never be subclassed, so this patch
-just exports them directly as functions without the wrapper.
-
-=back
-
-=head2 Updated Modules
-
-=over
-
-=item *
-
-We upgraded L<CGI.pm> to version 3.49 to incorporate fixes for regressions
-introduced in the release we shipped with Perl 5.12.0.
-
-=item *
-
-We upgraded L<Pod::Simple> to version 3.14 to get an improvement to \C\<\< \>\>
-parsing.
-
-=item *
-
-We made a small fix to the L<CPANPLUS> test suite to fix an occasional spurious test failure.
-
-=item *
-
-We upgraded L<Safe> to version 2.27 to wrap coderefs returned by C<reval()> and C<rdo()>.
-
-=back
-
-=head1 Changes to Existing Documentation
-
-=over
-
-=item *
-
-We added the new maintenance release policy to L<perlpolicy.pod>
-
-=item *
-
-We've clarified the multiple-angle-bracket construct in the spec for POD
-in L<perlpodspec>
-
-=item *
-
-We added a missing explanation for a warning about C<:=> to L<perldiag.pod>
-
-=item *
-
-We removed a false claim in L<perlunitut> that all text strings are Unicode strings in Perl.
-
-=item *
-
-We updated the Github mirror link in L<perlrepository> to mirrors/perl, not github/perl
-
-=item *
-
-We fixed a a minor error in L<perl5114delta.pod>.
-
-=item *
-
-We replaced a mention of the now-obsolete L<Switch.pm> with F<given>/F<when>.
-
-=item *
-
-We improved documentation about F<$sitelibexp/sitecustomize.pl> in L<perlrun>.
-
-=item *
-
-We corrected L<perlmodlib.pod> which had unintentionally omitted a number of modules.
-
-=item *
-
-We updated the documentation for 'require' in L<perlfunc.pod> relating to putting Perl code in @INC.
-
-=item *
-
-We reinstated some erroneously-removed documentation about quotemeta in L<perlfunc>.
-
-=item *
-
-We fixed an F<a2p> example in L<perlutil.pod>.
-
-=item *
-
-We filled in a blank in L<perlport.pod> with the release date of Perl 5.12.
-
-=item *
-
-We fixed broken links in a number of perldelta files.
-
-=item *
-
-The documentation for L<Carp.pm> incorrectly stated that the $Carp::Verbose
-variable makes cluck generate stack backtraces.
-
-=item *
-
-We fixed a number of typos in L<Pod::Functions>
-
-=item *
-
-We improved documentation of case-changing functions in L<perlfunc.pod>
-
-=item *
-
-We corrected L<perlgpl.pod> to contain the correct version of the GNU
-General Public License.
-
-
-
-=back
-
-=head1 Testing
-
-=head2 Testing Improvements
-
-=over
-
-=item *
-
-F<t/op/sselect.t> is now less prone to clock jitter during timing checks
-on Windows.
-
-sleep() time on Win32 may be rounded down to multiple of
-the clock tick interval.
-
-=item *
-
-F<lib/blib.t> and F<lib/locale.t>: Fixes for test failures on Darwin/PPC
-
-=item *
-
-F<perl5db.t>: Fix for test failures when C<Term::ReadLine::Gnu> is installed.
-
-=back
-
-=head1 Installation and Configuration Improvements
-
-=head2 Configuration improvements
-
-=over
-
-=item *
-
-We updated F<INSTALL> with notes about how to deal with broken F<dbm.h>
-on OpenSUSE (and possibly other platforms)
-
-=back
-
-=head1 Bug Fixes
-
-=over 4
-
-=item *
-
-A bug in how we process filetest operations could cause a segfault.
-Filetests don't always expect an op on the stack, so we now use
-TOPs only if we're sure that we're not stat'ing the _ filehandle.
-This is indicated by OPf_KIDS (as checked in ck_ftst).
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=74542>
-
-=item *
-
-When deparsing a nextstate op that has both a change of package (relative
-to the previous nextstate) and a label, the package declaration is now
-emitted first, because it is syntactically impermissible for a label to
-prefix a package declaration.
-
-=item *
-
-XSUB.h now correctly redefines fgets under PERL_IMPLICIT_SYS
-
-See also: L<http://rt.cpan.org/Public/Bug/Display.html?id=55049>
-
-=item *
-
-utf8::is_utf8 now respects GMAGIC (e.g. $1)
-
-=item *
-
-XS code using C<fputc()> or C<fputs()>: on Windows could cause an error
-due to their arguments being swapped.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=72704>
-
-=item *
-
-We fixed a small bug in lex_stuff_pvn() that caused spurious syntax errors
-in an obscure situation. It happened when stuffing was performed on the
-last line of a file and the line ended with a statement that lacked a
-terminating semicolon.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=74006>
-
-=item *
-
-We fixed a bug that could cause \N{} constructs followed by a single . to
-be parsed incorrectly.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=74978>
-
-=item *
-
-
-We fixed a bug that caused when(scalar) without an argument not to be
-treated as a syntax error.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=74114>
-
-=item *
-
-We fixed a regression in the handling of labels immediately before string
-evals that was introduced in Perl 5.12.0.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=74290>
-
-=item *
-
-We fixed a regression in case-insensitive matching of folded characters
-in regular expressions introduced in Perl 5.10.1.
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=72998>
-
-=back
-
-=head1 Platform Specific Notes
-
-=head2 HP-UX
-
-=over
-
-=item *
-
-Perl now allows -Duse64bitint without promoting to use64bitall on HP-UX
-
-=back
-
-=head2 AIX
-
-=over
-
-=item *
-
-Perl now builds on AIX 4.2
-
-The changes required work around AIX 4.2s' lack of support for IPv6,
-and limited support for POSIX C<sigaction()>.
-
-=back
-
-=head2 FreeBSD 7
-
-=over
-
-=item *
-
-FreeBSD 7 no longer contains F</usr/bin/objformat>. At build time,
-Perl now skips the F<objformat> check for versions 7 and higher and
-assumes ELF.
-
-=back
-
-=head2 VMS
-
-=over
-
-=item *
-
-It's now possible to build extensions on older (pre 7.3-2) VMS systems.
-
-DCL symbol length was limited to 1K up until about seven years or
-so ago, but there was no particularly deep reason to prevent those
-older systems from configuring and building Perl.
-
-=item *
-
-We fixed the previously-broken C<-Uuseperlio> build on VMS.
-
-We were checking a variable that doesn't exist in the non-default
-case of disabling perlio. Now we only look at it when it exists.
-
-=item *
-
-We fixed the -Uuseperlio command-line option in configure.com.
-
-Formerly it only worked if you went through all the questions
-interactively and explicitly answered no.
-
-=back
-
-=head1 Known Problems
-
-=over
-
-=item *
-
-C<List::Util::first> misbehaves in the presence of a lexical C<$_>
-(typically introduced by C<my $_> or implicitly by C<given>). The variable
-which gets set for each iteration is the package variable C<$_>, not the
-lexical C<$_>.
-
-A similar issue may occur in other modules that provide functions which
-take a block as their first argument, like
-
- foo { ... $_ ...} list
-
-See also: L<http://rt.perl.org/rt3/Public/Bug/Display.html?id=67694>
-
-=item *
-
-C<Module::Load::Conditional> and C<version> have an unfortunate
-interaction which can cause C<CPANPLUS> to crash when it encounters
-an unparseable version string. Upgrading to C<CPANPLUS> 0.9004 or
-C<Module::Load::Conditional> 0.38 from CPAN will resolve this issue.
-
-=back
-
-
-=head1 Acknowledgements
-
-Perl 5.12.1 represents approximately four weeks of development since
-Perl 5.12.0 and contains approximately 4,000 lines of changes
-across 142 files from 28 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 5.12.1:
-
-Ævar Arnfjörð Bjarmason, Chris Williams, chromatic, Craig A. Berry,
-David Golden, Father Chrysostomos, Florian Ragwitz, Frank Wiegand,
-Gene Sullivan, Goro Fuji, H.Merijn Brand, James E Keenan, Jan Dubois,
-Jesse Vincent, Josh ben Jore, Karl Williamson, Leon Brocard, Michael
-Schwern, Nga Tang Chan, Nicholas Clark, Niko Tyni, Philippe Bruhat,
-Rafael Garcia-Suarez, Ricardo Signes, Steffen Mueller, Todd Rinaldo,
-Vincent Pit and Zefram.
-
-=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 will 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
-