{
    "mode": "man",
    "parameter": "perl5182delta",
    "section": "1",
    "url": "https://www.chedong.com/phpMan.php/man/perl5182delta/1/json",
    "generated": "2026-06-16T06:23:18Z",
    "sections": {
        "NAME": {
            "content": "perl5182delta - what is new for perl v5.18.2\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "This document describes differences between the 5.18.1 release and the 5.18.2 release.\n\nIf you are upgrading from an earlier release such as 5.18.0, first read perl5181delta, which\ndescribes differences between 5.18.0 and 5.18.1.\n",
            "subsections": [
                {
                    "name": "Modules and Pragmata",
                    "content": ""
                },
                {
                    "name": "Updated Modules and Pragmata",
                    "content": "•   B has been upgraded from version 1.4201 to 1.4202.\n\nThe fix for [perl #118525] introduced a regression in the behaviour of \"B::CV::GV\",\nchanging the return value from a \"B::SPECIAL\" object on a \"NULL\" \"CvGV\" to \"undef\".\n\"B::CV::GV\" again returns a \"B::SPECIAL\" object in this case.  [perl #119413]\n\n•   B::Concise has been upgraded from version 0.95 to 0.9501.\n\nThis fixes a bug in dumping unexpected SPECIALs.\n\n•   English has been upgraded from version 1.06 to 1.0601.  This fixes an error about the\nperformance of \"$`\", $&, and \"$'\".\n\n•   File::Glob has been upgraded from version 1.20 to 1.2001.\n"
                }
            ]
        },
        "Documentation": {
            "content": "",
            "subsections": [
                {
                    "name": "Changes to Existing Documentation",
                    "content": "•   perlrepository has been restored with a pointer to more useful pages.\n\n•   perlhack has been updated with the latest changes from blead.\n"
                },
                {
                    "name": "Selected Bug Fixes",
                    "content": "•   Perl 5.18.1 introduced a regression along with a bugfix for lexical subs.  Some\nB::SPECIAL results from B::CV::GV became undefs instead.  This broke Devel::Cover among\nother libraries.  This has been fixed.  [perl #119351]\n\n•   Perl 5.18.0 introduced a regression whereby \"[:^ascii:]\", if used in the same character\nclass as other qualifiers, would fail to match characters in the Latin-1 block.  This has\nbeen fixed.  [perl #120799]\n\n•   Perl 5.18.0 introduced a regression when using ->SUPER::method with AUTOLOAD by looking\nup AUTOLOAD from the current package, rather than the current package’s superclass.  This\nhas been fixed. [perl #120694]\n\n•   Perl 5.18.0 introduced a regression whereby \"-bareword\" was no longer permitted under the\n\"strict\" and \"integer\" pragmata when used together.  This has been fixed.  [perl #120288]\n\n•   Previously PerlIOBasedup didn't check if pushing the new layer succeeded before\n(optionally) setting the utf8 flag. This could cause segfaults-by-nullpointer.  This has\nbeen fixed.\n\n•   A buffer overflow with very long identifiers has been fixed.\n\n•   A regression from 5.16 in the handling of padranges led to assertion failures if a\nkeyword plugin declined to handle the second ‘my’, but only after creating a padop.\n\nThis affected, at least, Devel::CallParser under threaded builds.\n\nThis has been fixed.\n\n•   The construct \"$r=qr/.../; /$r/p\" is now handled properly, an issue which had been\nworsened by changes 5.18.0. [perl #118213]\n"
                }
            ]
        },
        "Acknowledgements": {
            "content": "Perl 5.18.2 represents approximately 3 months of development since Perl 5.18.1 and contains\napproximately 980 lines of changes across 39 files from 4 authors.\n\nPerl continues to flourish into its third decade thanks to a vibrant community of users and\ndevelopers. The following people are known to have contributed the improvements that became\nPerl 5.18.2:\n\nCraig A. Berry, David Mitchell, Ricardo Signes, Tony Cook.\n\nThe list above is almost certainly incomplete as it is automatically generated from version\ncontrol history. In particular, it does not include the names of the (very much appreciated)\ncontributors who reported issues to the Perl bug tracker.\n\nMany of the changes included in this version originated in the CPAN modules included in\nPerl's core. We're grateful to the entire CPAN community for helping Perl to flourish.\n\nFor a more complete list of all of Perl's historical contributors, please see the AUTHORS\nfile in the Perl source distribution.\n",
            "subsections": [
                {
                    "name": "Reporting Bugs",
                    "content": "If you find what you think is a bug, you might check the articles recently posted to the\ncomp.lang.perl.misc newsgroup and the perl bug database at http://rt.perl.org/perlbug/ .\nThere may also be information at http://www.perl.org/ , the Perl Home Page.\n\nIf you believe you have an unreported bug, please run the perlbug program included with your\nrelease.  Be sure to trim your bug down to a tiny but sufficient test case.  Your bug report,\nalong with the output of \"perl -V\", will be sent off to perlbug@perl.org to be analysed by\nthe Perl porting team.\n\nIf the bug you are reporting has security implications, which make it inappropriate to send\nto a publicly archived mailing list, then please send it to perl5-security-report@perl.org.\nThis points to a closed subscription unarchived mailing list, which includes all the core\ncommitters, who will be able to help assess the impact of issues, figure out a resolution,\nand help co-ordinate the release of patches to mitigate or fix the problem across all\nplatforms on which Perl is supported.  Please only use this address for security issues in\nthe Perl core, not for modules independently distributed on CPAN.\n"
                }
            ]
        },
        "SEE ALSO": {
            "content": "The Changes file for an explanation of how to view exhaustive details on what changed.\n\nThe INSTALL file for how to build Perl.\n\nThe README file for general stuff.\n\nThe Artistic and Copying files for copyright information.\n\n\n\nperl v5.34.0                                 2025-07-25                             PERL5182DELTA(1)",
            "subsections": []
        }
    },
    "summary": "perl5182delta - what is new for perl v5.18.2",
    "flags": [],
    "examples": [],
    "see_also": []
}