perl586delta
(1)
Name
perl586delta - what is new for perl v5.8.6
Synopsis
Please see following description for synopsis
Description
Perl Programmers Reference Guide PERL586DELTA(1)
NAME
perl586delta - what is new for perl v5.8.6
DESCRIPTION
This document describes differences between the 5.8.5
release and the 5.8.6 release.
Incompatible Changes
There are no changes incompatible with 5.8.5.
Core Enhancements
The perl interpreter is now more tolerant of UTF-16-encoded
scripts.
On Win32, Perl can now use non-IFS compatible LSPs, which
allows Perl to work in conjunction with firewalls such as
McAfee Guardian. For full details see the file README.win32,
particularly if you're running Win95.
Modules and Pragmata
o With the "base" pragma, an intermediate class with no
fields used to messes up private fields in the base
class. This has been fixed.
o Cwd upgraded to version 3.01 (as part of the new
PathTools distribution)
o Devel::PPPort upgraded to version 3.03
o File::Spec upgraded to version 3.01 (as part of the new
PathTools distribution)
o Encode upgraded to version 2.08
o ExtUtils::MakeMaker remains at version 6.17, as later
stable releases currently available on CPAN have some
issues with core modules on some core platforms.
o I18N::LangTags upgraded to version 0.35
o Math::BigInt upgraded to version 1.73
o Math::BigRat upgraded to version 0.13
o MIME::Base64 upgraded to version 3.05
o POSIX::sigprocmask function can now retrieve the current
signal mask without also setting it.
o Time::HiRes upgraded to version 1.65
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Perl Programmers Reference Guide PERL586DELTA(1)
Utility Changes
Perl has a new -dt command-line flag, which enables threads
support in the debugger.
Performance Enhancements
"reverse sort ..." is now optimized to sort in reverse,
avoiding the generation of a temporary intermediate list.
"for (reverse @foo)" now iterates in reverse, avoiding the
generation of a temporary reversed list.
Selected Bug Fixes
The regexp engine is now more robust when given invalid utf8
input, as is sometimes generated by buggy XS modules.
"foreach" on threads::shared array used to be able to crash
Perl. This bug has now been fixed.
A regexp in "STDOUT"'s destructor used to coredump, because
the regexp pad was already freed. This has been fixed.
"goto &" is now more robust - bugs in deep recursion and
chained "goto &" have been fixed.
Using "delete" on an array no longer leaks memory. A "pop"
of an item from a shared array reference no longer causes a
leak.
"eval_sv()" failing a taint test could corrupt the stack -
this has been fixed.
On platforms with 64 bit pointers numeric comparison
operators used to erroneously compare the addresses of
references that are overloaded, rather than using the
overloaded values. This has been fixed.
"read" into a UTF8-encoded buffer with an offset off the end
of the buffer no longer mis-calculates buffer lengths.
Although Perl has promised since version 5.8 that "sort()"
would be stable, the two cases "sort {$b cmp $a}" and "sort
{$b <=> $a}" could produce non-stable sorts. This is
corrected in perl5.8.6.
Localising $^D no longer generates a diagnostic message
about valid -D flags.
New or Changed Diagnostics
For -t and -T,
Too late for "-T" option has been changed to the more
informative
"-T" is on the #! line, it must also be used on the
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Perl Programmers Reference Guide PERL586DELTA(1)
command line
Changed Internals
From now on all applications embedding perl will behave as
if perl were compiled with -DPERL_USE_SAFE_PUTENV. See
"Environment access" in the INSTALL file for details.
Most "C" source files now have comments at the top
explaining their purpose, which should help anyone wishing
to get an overview of the implementation.
New Tests
There are significantly more tests for the "B" suite of
modules.
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.org, 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 [email protected] 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.
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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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