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+.\" -*- mode: troff; coding: utf-8 -*-
+.\" Automatically generated by Pod::Man 5.01 (Pod::Simple 3.43)
+.\"
+.\" Standard preamble:
+.\" ========================================================================
+.de Sp \" Vertical space (when we can't use .PP)
+.if t .sp .5v
+.if n .sp
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+..
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+..
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+.\"
+.\" If the F register is >0, we'll generate index entries on stderr for
+.\" titles (.TH), headers (.SH), subsections (.SS), items (.Ip), and index
+.\" entries marked with X<> in POD. Of course, you'll have to process the
+.\" output yourself in some meaningful fashion.
+.\"
+.\" Avoid warning from groff about undefined register 'F'.
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+..
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+. if \nF \{\
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+..
+. if !\nF==2 \{\
+. nr % 0
+. nr F 2
+. \}
+. \}
+.\}
+.rr rF
+.\" ========================================================================
+.\"
+.IX Title "PERL5124DELTA 1"
+.TH PERL5124DELTA 1 2023-11-28 "perl v5.38.2" "Perl Programmers Reference Guide"
+.\" For nroff, turn off justification. Always turn off hyphenation; it makes
+.\" way too many mistakes in technical documents.
+.if n .ad l
+.nh
+.SH NAME
+perl5124delta \- what is new for perl v5.12.4
+.SH DESCRIPTION
+.IX Header "DESCRIPTION"
+This document describes differences between the 5.12.3 release and
+the 5.12.4 release.
+.PP
+If you are upgrading from an earlier release such as 5.12.2, first read
+perl5123delta, which describes differences between 5.12.2
+and 5.12.3. The major changes made in 5.12.0 are described in perl5120delta.
+.SH "Incompatible Changes"
+.IX Header "Incompatible Changes"
+There are no changes intentionally incompatible with 5.12.3. If any
+exist, they are bugs and reports are welcome.
+.SH "Selected Bug Fixes"
+.IX Header "Selected Bug Fixes"
+When strict "refs" mode is off, \f(CW\*(C`%{...}\*(C'\fR in rvalue context returns
+\&\f(CW\*(C`undef\*(C'\fR if its argument is undefined. An optimisation introduced in Perl
+5.12.0 to make \f(CW\*(C`keys %{...}\*(C'\fR faster when used as a boolean did not take
+this into account, causing \f(CW\*(C`keys %{+undef}\*(C'\fR (and \f(CW\*(C`keys %$foo\*(C'\fR when
+\&\f(CW$foo\fR is undefined) to be an error, which it should be so in strict
+mode only [perl #81750].
+.PP
+\&\f(CW\*(C`lc\*(C'\fR, \f(CW\*(C`uc\*(C'\fR, \f(CW\*(C`lcfirst\*(C'\fR, and \f(CW\*(C`ucfirst\*(C'\fR no longer return untainted strings
+when the argument is tainted. This has been broken since perl 5.8.9
+[perl #87336].
+.PP
+Fixed a case where it was possible that a freed buffer may have been read
+from when parsing a here document.
+.SH "Modules and Pragmata"
+.IX Header "Modules and Pragmata"
+Module::CoreList has been upgraded from version 2.43 to 2.50.
+.SH Testing
+.IX Header "Testing"
+The \fIcpan/CGI/t/http.t\fR test script has been fixed to work when the
+environment has HTTPS_* environment variables, such as HTTPS_PROXY.
+.SH Documentation
+.IX Header "Documentation"
+Updated the documentation for \fBrand()\fR in perlfunc to note that it is not
+cryptographically secure.
+.SH "Platform Specific Notes"
+.IX Header "Platform Specific Notes"
+.IP Linux 4
+.IX Item "Linux"
+Support Ubuntu 11.04's new multi-arch library layout.
+.SH Acknowledgements
+.IX Header "Acknowledgements"
+Perl 5.12.4 represents approximately 5 months of development since
+Perl 5.12.3 and contains approximately 200 lines of changes across
+11 files from 8 authors.
+.PP
+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 5.12.4:
+.PP
+Andy Dougherty, David Golden, David Leadbeater, Father Chrysostomos,
+Florian Ragwitz, Jesse Vincent, Leon Brocard, Zsbán Ambrus.
+.SH "Reporting Bugs"
+.IX Header "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.
+.PP
+If you believe you have an unreported bug, please run the \fBperlbug\fR
+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 \f(CW\*(C`perl \-V\*(C'\fR, will be sent off to perlbug@perl.org to be
+analysed by the Perl porting team.
+.PP
+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.
+.SH "SEE ALSO"
+.IX Header "SEE ALSO"
+The \fIChanges\fR file for an explanation of how to view exhaustive details
+on what changed.
+.PP
+The \fIINSTALL\fR file for how to build Perl.
+.PP
+The \fIREADME\fR file for general stuff.
+.PP
+The \fIArtistic\fR and \fICopying\fR files for copyright information.