1PERL5124DELTA(1) Perl Programmers Reference Guide PERL5124DELTA(1)
2
3
4
6 perl5124delta - what is new for perl v5.12.4
7
9 This document describes differences between the 5.12.3 release and the
10 5.12.4 release.
11
12 If you are upgrading from an earlier release such as 5.12.2, first read
13 perl5123delta, which describes differences between 5.12.2 and 5.12.3.
14 The major changes made in 5.12.0 are described in perl5120delta.
15
17 There are no changes intentionally incompatible with 5.12.3. If any
18 exist, they are bugs and reports are welcome.
19
21 When strict "refs" mode is off, "%{...}" in rvalue context returns
22 "undef" if its argument is undefined. An optimisation introduced in
23 Perl 5.12.0 to make "keys %{...}" faster when used as a boolean did not
24 take this into account, causing "keys %{+undef}" (and "keys %$foo" when
25 $foo is undefined) to be an error, which it should be so in strict mode
26 only [perl #81750].
27
28 "lc", "uc", "lcfirst", and "ucfirst" no longer return untainted strings
29 when the argument is tainted. This has been broken since perl 5.8.9
30 [perl #87336].
31
32 Fixed a case where it was possible that a freed buffer may have been
33 read from when parsing a here document.
34
36 Module::CoreList has been upgraded from version 2.43 to 2.50.
37
39 The cpan/CGI/t/http.t test script has been fixed to work when the
40 environment has HTTPS_* environment variables, such as HTTPS_PROXY.
41
43 Updated the documentation for rand() in perlfunc to note that it is not
44 cryptographically secure.
45
47 Linux
48 Support Ubuntu 11.04's new multi-arch library layout.
49
51 Perl 5.12.4 represents approximately 5 months of development since Perl
52 5.12.3 and contains approximately 200 lines of changes across 11 files
53 from 8 authors.
54
55 Perl continues to flourish into its third decade thanks to a vibrant
56 community of users and developers. The following people are known to
57 have contributed the improvements that became Perl 5.12.4:
58
59 Andy Dougherty, David Golden, David Leadbeater, Father Chrysostomos,
60 Florian Ragwitz, Jesse Vincent, Leon Brocard, Zsban Ambrus.
61
63 If you find what you think is a bug, you might check the articles
64 recently posted to the comp.lang.perl.misc newsgroup and the perl bug
65 database at http://rt.perl.org/perlbug/ . There may also be
66 information at http://www.perl.org/ , the Perl Home Page.
67
68 If you believe you have an unreported bug, please run the perlbug
69 program included with your release. Be sure to trim your bug down to a
70 tiny but sufficient test case. Your bug report, along with the output
71 of "perl -V", will be sent off to perlbug@perl.org to be analysed by
72 the Perl porting team.
73
74 If the bug you are reporting has security implications, which make it
75 inappropriate to send to a publicly archived mailing list, then please
76 send it to perl5-security-report@perl.org. This points to a closed
77 subscription unarchived mailing list, which includes all the core
78 committers, who be able to help assess the impact of issues, figure out
79 a resolution, and help co-ordinate the release of patches to mitigate
80 or fix the problem across all platforms on which Perl is supported.
81 Please only use this address for security issues in the Perl core, not
82 for modules independently distributed on CPAN.
83
85 The Changes file for an explanation of how to view exhaustive details
86 on what changed.
87
88 The INSTALL file for how to build Perl.
89
90 The README file for general stuff.
91
92 The Artistic and Copying files for copyright information.
93
94
95
96perl v5.36.0 2022-08-30 PERL5124DELTA(1)