| 1 | =encoding utf8 |
| 2 | |
| 3 | =head1 NAME |
| 4 | |
| 5 | perl5184delta - what is new for perl v5.18.4 |
| 6 | |
| 7 | =head1 DESCRIPTION |
| 8 | |
| 9 | This document describes differences between the 5.18.4 release and the 5.18.2 |
| 10 | release. B<Please note:> This document ignores perl 5.18.3, a broken release |
| 11 | which existed for a few hours only. |
| 12 | |
| 13 | If you are upgrading from an earlier release such as 5.18.1, first read |
| 14 | L<perl5182delta>, which describes differences between 5.18.1 and 5.18.2. |
| 15 | |
| 16 | =head1 Modules and Pragmata |
| 17 | |
| 18 | =head2 Updated Modules and Pragmata |
| 19 | |
| 20 | =over 4 |
| 21 | |
| 22 | =item * |
| 23 | |
| 24 | L<Digest::SHA> has been upgraded from 5.84_01 to 5.84_02. |
| 25 | |
| 26 | =item * |
| 27 | |
| 28 | L<perl5db.pl> has been upgraded from version 1.39_10 to 1.39_11. |
| 29 | |
| 30 | This fixes a crash in tab completion, where available. [perl #120827] Also, |
| 31 | filehandle information is properly reset after a pager is run. [perl #121456] |
| 32 | |
| 33 | =back |
| 34 | |
| 35 | =head1 Platform Support |
| 36 | |
| 37 | =head2 Platform-Specific Notes |
| 38 | |
| 39 | =over 4 |
| 40 | |
| 41 | =item Win32 |
| 42 | |
| 43 | =over 4 |
| 44 | |
| 45 | =item * |
| 46 | |
| 47 | Introduced by |
| 48 | L<perl #113536|https://rt.perl.org/Public/Bug/Display.html?id=113536>, a memory |
| 49 | leak on every call to C<system> and backticks (C< `` >), on most Win32 Perls |
| 50 | starting from 5.18.0 has been fixed. The memory leak only occurred if you |
| 51 | enabled psuedo-fork in your build of Win32 Perl, and were running that build on |
| 52 | Server 2003 R2 or newer OS. The leak does not appear on WinXP SP3. |
| 53 | [L<perl #121676|https://rt.perl.org/Public/Bug/Display.html?id=121676>] |
| 54 | |
| 55 | =back |
| 56 | |
| 57 | =back |
| 58 | |
| 59 | =head1 Selected Bug Fixes |
| 60 | |
| 61 | =over 4 |
| 62 | |
| 63 | =item * |
| 64 | |
| 65 | The debugger now properly resets filehandles as needed. [perl #121456] |
| 66 | |
| 67 | =item * |
| 68 | |
| 69 | A segfault in Digest::SHA has been addressed. [perl #121421] |
| 70 | |
| 71 | =item * |
| 72 | |
| 73 | perl can again be built with USE_64_BIT_INT, with Visual C 2003, 32 bit. |
| 74 | [perl #120925] |
| 75 | |
| 76 | =item * |
| 77 | |
| 78 | A leading { (brace) in formats is properly parsed again. [perl #119973] |
| 79 | |
| 80 | =item * |
| 81 | |
| 82 | Copy the values used to perturb hash iteration when cloning an |
| 83 | interpreter. This was fairly harmless but caused C<valgrind> to |
| 84 | complain. [perl #121336] |
| 85 | |
| 86 | =item * |
| 87 | |
| 88 | In Perl v5.18 C<undef *_; goto &sub> and C<local *_; goto &sub> started |
| 89 | crashing. This has been fixed. [perl #119949] |
| 90 | |
| 91 | =back |
| 92 | |
| 93 | =head1 Acknowledgements |
| 94 | |
| 95 | Perl 5.18.4 represents approximately 9 months of development since Perl 5.18.2 |
| 96 | and contains approximately 2,000 lines of changes across 53 files from 13 |
| 97 | authors. |
| 98 | |
| 99 | Perl continues to flourish into its third decade thanks to a vibrant community |
| 100 | of users and developers. The following people are known to have contributed the |
| 101 | improvements that became Perl 5.18.4: |
| 102 | |
| 103 | Daniel Dragan, David Mitchell, Doug Bell, Father Chrysostomos, Hiroo Hayashi, |
| 104 | James E Keenan, Karl Williamson, Mark Shelor, Ricardo Signes, Shlomi Fish, |
| 105 | Smylers, Steve Hay, Tony Cook. |
| 106 | |
| 107 | The list above is almost certainly incomplete as it is automatically generated |
| 108 | from version control history. In particular, it does not include the names of |
| 109 | the (very much appreciated) contributors who reported issues to the Perl bug |
| 110 | tracker. |
| 111 | |
| 112 | Many of the changes included in this version originated in the CPAN modules |
| 113 | included in Perl's core. We're grateful to the entire CPAN community for |
| 114 | helping Perl to flourish. |
| 115 | |
| 116 | For a more complete list of all of Perl's historical contributors, please see |
| 117 | the F<AUTHORS> file in the Perl source distribution. |
| 118 | |
| 119 | =head1 Reporting Bugs |
| 120 | |
| 121 | If you find what you think is a bug, you might check the articles recently |
| 122 | posted to the comp.lang.perl.misc newsgroup and the perl bug database at |
| 123 | http://rt.perl.org/perlbug/ . There may also be information at |
| 124 | http://www.perl.org/ , the Perl Home Page. |
| 125 | |
| 126 | If you believe you have an unreported bug, please run the L<perlbug> program |
| 127 | included with your release. Be sure to trim your bug down to a tiny but |
| 128 | sufficient test case. Your bug report, along with the output of C<perl -V>, |
| 129 | will be sent off to perlbug@perl.org to be analysed by the Perl porting team. |
| 130 | |
| 131 | If the bug you are reporting has security implications, which make it |
| 132 | inappropriate to send to a publicly archived mailing list, then please send it |
| 133 | to perl5-security-report@perl.org. This points to a closed subscription |
| 134 | unarchived mailing list, which includes all the core committers, who will be |
| 135 | able to help assess the impact of issues, figure out a resolution, and help |
| 136 | co-ordinate the release of patches to mitigate or fix the problem across all |
| 137 | platforms on which Perl is supported. Please only use this address for |
| 138 | security issues in the Perl core, not for modules independently distributed on |
| 139 | CPAN. |
| 140 | |
| 141 | =head1 SEE ALSO |
| 142 | |
| 143 | The F<Changes> file for an explanation of how to view exhaustive details on |
| 144 | what changed. |
| 145 | |
| 146 | The F<INSTALL> file for how to build Perl. |
| 147 | |
| 148 | The F<README> file for general stuff. |
| 149 | |
| 150 | The F<Artistic> and F<Copying> files for copyright information. |
| 151 | |
| 152 | =cut |
| 153 | |