109 lines
3.6 KiB
Plaintext
109 lines
3.6 KiB
Plaintext
=encoding utf8
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=head1 NAME
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perl5124delta - what is new for perl v5.12.4
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=head1 DESCRIPTION
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This document describes differences between the 5.12.3 release and
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the 5.12.4 release.
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If you are upgrading from an earlier release such as 5.12.2, first read
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L<perl5123delta>, which describes differences between 5.12.2
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and 5.12.3. The major changes made in 5.12.0 are described in L<perl5120delta>.
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=head1 Incompatible Changes
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There are no changes intentionally incompatible with 5.12.3. If any
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exist, they are bugs and reports are welcome.
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=head1 Selected Bug Fixes
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When strict "refs" mode is off, C<%{...}> in rvalue context returns
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C<undef> if its argument is undefined. An optimisation introduced in Perl
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5.12.0 to make C<keys %{...}> faster when used as a boolean did not take
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this into account, causing C<keys %{+undef}> (and C<keys %$foo> when
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C<$foo> is undefined) to be an error, which it should be so in strict
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mode only [perl #81750].
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C<lc>, C<uc>, C<lcfirst>, and C<ucfirst> no longer return untainted strings
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when the argument is tainted. This has been broken since perl 5.8.9
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[perl #87336].
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Fixed a case where it was possible that a freed buffer may have been read
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from when parsing a here document.
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=head1 Modules and Pragmata
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L<Module::CoreList> has been upgraded from version 2.43 to 2.50.
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=head1 Testing
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The F<cpan/CGI/t/http.t> test script has been fixed to work when the
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environment has HTTPS_* environment variables, such as HTTPS_PROXY.
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=head1 Documentation
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Updated the documentation for rand() in L<perlfunc> to note that it is not
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cryptographically secure.
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=head1 Platform Specific Notes
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=over 4
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=item Linux
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Support Ubuntu 11.04's new multi-arch library layout.
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=back
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=head1 Acknowledgements
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Perl 5.12.4 represents approximately 5 months of development since
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Perl 5.12.3 and contains approximately 200 lines of changes across
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11 files from 8 authors.
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Perl continues to flourish into its third decade thanks to a vibrant
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community of users and developers. The following people are known to
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have contributed the improvements that became Perl 5.12.4:
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Andy Dougherty, David Golden, David Leadbeater, Father Chrysostomos,
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Florian Ragwitz, Jesse Vincent, Leon Brocard, Zsbán Ambrus.
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=head1 Reporting Bugs
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If you find what you think is a bug, you might check the articles
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recently posted to the comp.lang.perl.misc newsgroup and the perl
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bug database at http://rt.perl.org/perlbug/ . There may also be
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information at http://www.perl.org/ , the Perl Home Page.
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If you believe you have an unreported bug, please run the B<perlbug>
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program included with your release. Be sure to trim your bug down
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to a tiny but sufficient test case. Your bug report, along with the
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output of C<perl -V>, will be sent off to perlbug@perl.org to be
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analysed by the Perl porting team.
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If the bug you are reporting has security implications, which make it
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inappropriate to send to a publicly archived mailing list, then please send
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it to perl5-security-report@perl.org. This points to a closed subscription
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unarchived mailing list, which includes all the core committers, who be able
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to help assess the impact of issues, figure out a resolution, and help
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co-ordinate the release of patches to mitigate or fix the problem across all
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platforms on which Perl is supported. Please only use this address for
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security issues in the Perl core, not for modules independently
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distributed on CPAN.
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=head1 SEE ALSO
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The F<Changes> file for an explanation of how to view exhaustive details
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on what changed.
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The F<INSTALL> file for how to build Perl.
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The F<README> file for general stuff.
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The F<Artistic> and F<Copying> files for copyright information.
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=cut
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