perl582delta
(1)
Name
perl582delta - what is new for perl v5.8.2
Synopsis
Please see following description for synopsis
Description
Perl Programmers Reference Guide PERL582DELTA(1)
NAME
perl582delta - what is new for perl v5.8.2
DESCRIPTION
This document describes differences between the 5.8.1
release and the 5.8.2 release.
If you are upgrading from an earlier release such as 5.6.1,
first read the perl58delta, which describes differences
between 5.6.0 and 5.8.0, and the perl581delta, which
describes differences between 5.8.0 and 5.8.1.
Incompatible Changes
For threaded builds for modules calling certain re-entrant
system calls, binary compatibility was accidentally lost
between 5.8.0 and 5.8.1. Binary compatibility with 5.8.0
has been restored in 5.8.2, which necessitates breaking
compatibility with 5.8.1. We see this as the lesser of two
evils.
This will only affect people who have a threaded perl 5.8.1,
and compiled modules which use these calls, and now attempt
to run the compiled modules with 5.8.2. The fix is to re-
compile and re-install the modules using 5.8.2.
Core Enhancements
Hash Randomisation
The hash randomisation introduced with 5.8.1 has been
amended. It transpired that although the implementation
introduced in 5.8.1 was source compatible with 5.8.0, it was
not binary compatible in certain cases. 5.8.2 contains an
improved implementation which is both source and binary
compatible with both 5.8.0 and 5.8.1, and remains robust
against the form of attack which prompted the change for
5.8.1.
We are grateful to the Debian project for their input in
this area. See "Algorithmic Complexity Attacks" in perlsec
for the original rationale behind this change.
Threading
Several memory leaks associated with variables shared
between threads have been fixed.
Modules and Pragmata
Updated Modules And Pragmata
The following modules and pragmata have been updated since
Perl 5.8.1:
Devel::PPPort
Digest::MD5
I18N::LangTags
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Perl Programmers Reference Guide PERL582DELTA(1)
libnet
MIME::Base64
Pod::Perldoc
strict
Documentation improved
Tie::Hash
Documentation improved
Time::HiRes
Unicode::Collate
Unicode::Normalize
UNIVERSAL
Documentation improved
Selected Bug Fixes
Some syntax errors involving unrecognized filetest operators
are now handled correctly by the parser.
Changed Internals
Interpreter initialization is more complete when
-DMULTIPLICITY is off. This should resolve problems with
initializing and destroying the Perl interpreter more than
once in a single process.
Platform Specific Problems
Dynamic linker flags have been tweaked for Solaris and OS X,
which should solve problems seen while building some XS
modules.
Bugs in OS/2 sockets and tmpfile have been fixed.
In OS X "setreuid" and friends are troublesome - perl will
now work around their problems as best possible.
Future Directions
Starting with 5.8.3 we intend to make more frequent
maintenance releases, with a smaller number of changes in
each. The intent is to propagate bug fixes out to stable
releases more rapidly and make upgrading stable releases
less of an upheaval. This should give end users more
flexibility in their choice of upgrade timing, and allow
them easier assessment of the impact of upgrades. The
current plan is for code freezes as follows
o 5.8.3 23:59:59 GMT, Wednesday December 31st 2003
o 5.8.4 23:59:59 GMT, Wednesday March 31st 2004
o 5.8.5 23:59:59 GMT, Wednesday June 30th 2004
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Perl Programmers Reference Guide PERL582DELTA(1)
with the release following soon after, when testing is
complete.
See "Future Directions" in perl581delta for more
soothsaying.
Reporting Bugs
If you find what you think is a bug, you might check the
articles recently posted to the comp.lang.perl.misc
newsgroup and the perl bug database at
http://bugs.perl.org/. There may also be information at
http://www.perl.com/, the Perl Home Page.
If you believe you have an unreported bug, please run the
perlbug program included with your release. Be sure to trim
your bug down to a tiny but sufficient test case. Your bug
report, along with the output of "perl -V", will be sent off
to perlbug@perl.org to be analysed by the Perl porting team.
You can browse and search the Perl 5 bugs at
http://bugs.perl.org/
ATTRIBUTES
See attributes(5) for descriptions of the following
attributes:
+---------------+------------------+
|ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+---------------+------------------+
|Availability | runtime/perl-512 |
+---------------+------------------+
|Stability | Uncommitted |
+---------------+------------------+
SEE ALSO
The Changes file for exhaustive details on what changed.
The INSTALL file for how to build Perl.
The README file for general stuff.
The Artistic and Copying files for copyright information.
NOTES
This software was built from source available at
https://java.net/projects/solaris-userland. The original
community source was downloaded from
http://www.cpan.org/src/5.0/perl-5.12.5.tar.bz2
Further information about this software can be found on the
open source community website at http://www.perl.org/.
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