NAME¶
perl5124delta - what is new for perl v5.12.4
DESCRIPTION¶
This document describes differences between the 5.12.3 release and the 5.12.4
release.
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.
Incompatible Changes¶
There are no changes intentionally incompatible with 5.12.3. If any exist, they
are bugs and reports are welcome.
Selected Bug Fixes¶
When strict "refs" mode is off, "%{...}" in rvalue context
returns "undef" if its argument is undefined. An optimisation
introduced in Perl 5.12.0 to make "keys %{...}" faster when used as
a boolean did not take this into account, causing "keys %{+undef}"
(and "keys %$foo" when $foo is undefined) to be an error, which it
should be so in strict mode only [perl #81750].
"lc", "uc", "lcfirst", and "ucfirst" no
longer return untainted strings when the argument is tainted. This has been
broken since perl 5.8.9 [perl #87336].
Fixed a case where it was possible that a freed buffer may have been read from
when parsing a here document.
Modules and Pragmata¶
Module::CoreList has been upgraded from version 2.43 to 2.50.
Testing¶
The
cpan/CGI/t/http.t test script has been fixed to work when the
environment has HTTPS_* environment variables, such as HTTPS_PROXY.
Documentation¶
Updated the documentation for
rand() in perlfunc to note that it is not
cryptographically secure.
- Linux
- Support Ubuntu 11.04's new multi-arch library layout.
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.
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:
Andy Dougherty, David Golden, David Leadbeater, Father Chrysostomos, Florian
Ragwitz, Jesse Vincent, Leon Brocard, Zsban Ambrus.
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
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 "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.
SEE ALSO¶
The
Changes file for an explanation of how to view exhaustive details on
what changed.
The
INSTALL file for how to build Perl.
The
README file for general stuff.
The
Artistic and
Copying files for copyright information.