{
    "mode": "man",
    "parameter": "perl582delta",
    "section": "1",
    "url": "https://www.chedong.com/phpMan.php/man/perl582delta/1/json",
    "generated": "2026-05-30T05:16:05Z",
    "sections": {
        "NAME": {
            "content": "perl582delta - what is new for perl v5.8.2\n",
            "subsections": []
        },
        "DESCRIPTION": {
            "content": "This document describes differences between the 5.8.1 release and the 5.8.2 release.\n\nIf you are upgrading from an earlier release such as 5.6.1, first read the perl58delta, which\ndescribes differences between 5.6.0 and 5.8.0, and the perl581delta, which describes\ndifferences between 5.8.0 and 5.8.1.\n",
            "subsections": [
                {
                    "name": "Incompatible Changes",
                    "content": "For threaded builds for modules calling certain re-entrant system calls, binary compatibility\nwas accidentally lost between 5.8.0 and 5.8.1.  Binary compatibility with 5.8.0 has been\nrestored in 5.8.2, which necessitates breaking compatibility with 5.8.1. We see this as the\nlesser of two evils.\n\nThis will only affect people who have a threaded perl 5.8.1, and compiled modules which use\nthese calls, and now attempt to run the compiled modules with 5.8.2. The fix is to re-compile\nand re-install the modules using 5.8.2.\n"
                },
                {
                    "name": "Core Enhancements",
                    "content": ""
                },
                {
                    "name": "Hash Randomisation",
                    "content": "The hash randomisation introduced with 5.8.1 has been amended. It transpired that although\nthe implementation introduced in 5.8.1 was source compatible with 5.8.0, it was not binary\ncompatible in certain cases. 5.8.2 contains an improved implementation which is both source\nand binary compatible with both 5.8.0 and 5.8.1, and remains robust against the form of\nattack which prompted the change for 5.8.1.\n\nWe are grateful to the Debian project for their input in this area.  See \"Algorithmic\nComplexity Attacks\" in perlsec for the original rationale behind this change.\n"
                },
                {
                    "name": "Threading",
                    "content": "Several memory leaks associated with variables shared between threads have been fixed.\n"
                },
                {
                    "name": "Modules and Pragmata",
                    "content": ""
                },
                {
                    "name": "Updated Modules And Pragmata",
                    "content": "The following modules and pragmata have been updated since Perl 5.8.1:\n\nDevel::PPPort\nDigest::MD5\nI18N::LangTags\nlibnet\nMIME::Base64\nPod::Perldoc\nstrict\nDocumentation improved\n\nTie::Hash\nDocumentation improved\n\nTime::HiRes\nUnicode::Collate\nUnicode::Normalize\nUNIVERSAL\nDocumentation improved\n"
                },
                {
                    "name": "Selected Bug Fixes",
                    "content": "Some syntax errors involving unrecognized filetest operators are now handled correctly by the\nparser.\n"
                },
                {
                    "name": "Changed Internals",
                    "content": "Interpreter initialization is more complete when -DMULTIPLICITY is off.  This should resolve\nproblems with initializing and destroying the Perl interpreter more than once in a single\nprocess.\n"
                },
                {
                    "name": "Platform Specific Problems",
                    "content": "Dynamic linker flags have been tweaked for Solaris and OS X, which should solve problems seen\nwhile building some XS modules.\n\nBugs in OS/2 sockets and tmpfile have been fixed.\n\nIn OS X \"setreuid\" and friends are troublesome - perl will now work around their problems as\nbest possible.\n"
                },
                {
                    "name": "Future Directions",
                    "content": "Starting with 5.8.3 we intend to make more frequent maintenance releases, with a smaller\nnumber of changes in each. The intent is to propagate bug fixes out to stable releases more\nrapidly and make upgrading stable releases less of an upheaval. This should give end users\nmore flexibility in their choice of upgrade timing, and allow them easier assessment of the\nimpact of upgrades. The current plan is for code freezes as follows\n\n•   5.8.3 23:59:59 GMT, Wednesday December 31st 2003\n\n•   5.8.4 23:59:59 GMT, Wednesday March 31st 2004\n\n•   5.8.5 23:59:59 GMT, Wednesday June 30th 2004\n\nwith the release following soon after, when testing is complete.\n\nSee \"Future Directions\" in perl581delta for more soothsaying.\n"
                },
                {
                    "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://bugs.perl.org/.  There may\nalso be information at http://www.perl.com/, 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.  You can browse and search the Perl 5 bugs at http://bugs.perl.org/\n"
                }
            ]
        },
        "SEE ALSO": {
            "content": "The Changes file for 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                              PERL582DELTA(1)",
            "subsections": []
        }
    },
    "summary": "perl582delta - what is new for perl v5.8.2",
    "flags": [],
    "examples": [],
    "see_also": []
}