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1 | =encoding utf8 |
2 | ||
3 | =head1 NAME | |
4 | ||
5 | perl5182delta - what is new for perl v5.18.2 | |
6 | ||
7 | =head1 DESCRIPTION | |
8 | ||
9 | This document describes differences between the 5.18.1 release and the 5.18.2 | |
10 | release. | |
11 | ||
12 | If you are upgrading from an earlier release such as 5.18.0, first read | |
13 | L<perl5181delta>, which describes differences between 5.18.0 and 5.18.1. | |
14 | ||
15 | =head1 Modules and Pragmata | |
16 | ||
17 | =head2 Updated Modules and Pragmata | |
18 | ||
19 | =over 4 | |
20 | ||
21 | =item * | |
22 | ||
23 | L<B> has been upgraded from version 1.42_01 to 1.42_02. | |
24 | ||
25 | The fix for [perl #118525] introduced a regression in the behaviour of | |
26 | C<B::CV::GV>, changing the return value from a C<B::SPECIAL> object on | |
27 | a C<NULL> C<CvGV> to C<undef>. C<B::CV::GV> again returns a | |
28 | C<B::SPECIAL> object in this case. [perl #119413] | |
29 | ||
30 | =item * | |
31 | ||
32 | L<B::Concise> has been upgraded from version 0.95 to 0.95_01. | |
33 | ||
34 | This fixes a bug in dumping unexpected SPECIALs. | |
35 | ||
36 | =item * | |
37 | ||
38 | L<English> has been upgraded from version 1.06 to 1.06_01. This fixes an | |
2e061f0f | 39 | error about the performance of C<$`>, C<$&>, and C<$'>. |
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40 | |
41 | =item * | |
42 | ||
43 | L<File::Glob> has been upgraded from version 1.20 to 1.20_01. | |
44 | ||
45 | =back | |
46 | ||
47 | =head1 Documentation | |
48 | ||
49 | =head2 Changes to Existing Documentation | |
50 | ||
51 | =over 4 | |
52 | ||
53 | =item * | |
54 | ||
55 | L<perlrepository> has been restored with a pointer to more useful pages. | |
56 | ||
57 | =item * | |
58 | ||
59 | L<perlhack> has been updated with the latest changes from blead. | |
60 | ||
61 | =back | |
62 | ||
63 | =head1 Selected Bug Fixes | |
64 | ||
65 | =over 4 | |
66 | ||
67 | =item * | |
68 | ||
69 | Perl 5.18.1 introduced a regression along with a bugfix for lexical subs. | |
70 | Some B::SPECIAL results from B::CV::GV became undefs instead. This broke | |
71 | Devel::Cover among other libraries. This has been fixed. [perl #119351] | |
72 | ||
73 | =item * | |
74 | ||
75 | Perl 5.18.0 introduced a regression whereby C<[:^ascii:]>, if used in the same | |
76 | character class as other qualifiers, would fail to match characters in the | |
77 | Latin-1 block. This has been fixed. [perl #120799] | |
78 | ||
79 | =item * | |
80 | ||
81 | Perl 5.18.0 introduced a regression when using ->SUPER::method with AUTOLOAD | |
82 | by looking up AUTOLOAD from the current package, rather than the current | |
83 | package’s superclass. This has been fixed. [perl #120694] | |
84 | ||
85 | =item * | |
86 | ||
87 | Perl 5.18.0 introduced a regression whereby C<-bareword> was no longer | |
88 | permitted under the C<strict> and C<integer> pragmata when used together. This | |
89 | has been fixed. [perl #120288] | |
90 | ||
91 | =item * | |
92 | ||
93 | Previously PerlIOBase_dup didn't check if pushing the new layer succeeded | |
94 | before (optionally) setting the utf8 flag. This could cause | |
95 | segfaults-by-nullpointer. This has been fixed. | |
96 | ||
97 | =item * | |
98 | ||
99 | A buffer overflow with very long identifiers has been fixed. | |
100 | ||
101 | =item * | |
102 | ||
103 | A regression from 5.16 in the handling of padranges led to assertion failures | |
104 | if a keyword plugin declined to handle the second ‘my’, but only after creating | |
105 | a padop. | |
106 | ||
107 | This affected, at least, Devel::CallParser under threaded builds. | |
108 | ||
2e061f0f | 109 | This has been fixed. |
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110 | |
111 | =item * | |
112 | ||
113 | The construct C<< $r=qr/.../; /$r/p >> is now handled properly, an issue which | |
114 | had been worsened by changes 5.18.0. [perl #118213] | |
115 | ||
116 | =back | |
117 | ||
118 | =head1 Acknowledgements | |
119 | ||
120 | Perl 5.18.2 represents approximately 3 months of development since Perl | |
121 | 5.18.1 and contains approximately 980 lines of changes across 39 files from 4 | |
122 | authors. | |
123 | ||
124 | Perl continues to flourish into its third decade thanks to a vibrant | |
125 | community of users and developers. The following people are known to have | |
126 | contributed the improvements that became Perl 5.18.2: | |
127 | ||
128 | Craig A. Berry, David Mitchell, Ricardo Signes, Tony Cook. | |
129 | ||
130 | The list above is almost certainly incomplete as it is automatically | |
131 | generated from version control history. In particular, it does not include | |
132 | the names of the (very much appreciated) contributors who reported issues to | |
133 | the Perl bug tracker. | |
134 | ||
135 | Many of the changes included in this version originated in the CPAN modules | |
136 | included in Perl's core. We're grateful to the entire CPAN community for | |
137 | helping Perl to flourish. | |
138 | ||
139 | For a more complete list of all of Perl's historical contributors, please see | |
140 | the F<AUTHORS> file in the Perl source distribution. | |
141 | ||
142 | =head1 Reporting Bugs | |
143 | ||
144 | If you find what you think is a bug, you might check the articles recently | |
145 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at | |
146 | http://rt.perl.org/perlbug/ . There may also be information at | |
147 | http://www.perl.org/ , the Perl Home Page. | |
148 | ||
149 | If you believe you have an unreported bug, please run the L<perlbug> program | |
150 | included with your release. Be sure to trim your bug down to a tiny but | |
151 | sufficient test case. Your bug report, along with the output of C<perl -V>, | |
152 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. | |
153 | ||
154 | If the bug you are reporting has security implications, which make it | |
155 | inappropriate to send to a publicly archived mailing list, then please send it | |
156 | to perl5-security-report@perl.org. This points to a closed subscription | |
157 | unarchived mailing list, which includes all the core committers, who will be | |
158 | able to help assess the impact of issues, figure out a resolution, and help | |
159 | co-ordinate the release of patches to mitigate or fix the problem across all | |
160 | platforms on which Perl is supported. Please only use this address for | |
161 | security issues in the Perl core, not for modules independently distributed on | |
162 | CPAN. | |
163 | ||
164 | =head1 SEE ALSO | |
165 | ||
166 | The F<Changes> file for an explanation of how to view exhaustive details on | |
167 | what changed. | |
168 | ||
169 | The F<INSTALL> file for how to build Perl. | |
170 | ||
171 | The F<README> file for general stuff. | |
172 | ||
173 | The F<Artistic> and F<Copying> files for copyright information. | |
174 | ||
175 | =cut |