Initial commit of OpenSPARC T2 architecture model.

[OpenSPARC-T2-SAM] / sam-t2 / devtools / v8plus / lib / perl5 / 5.8.8 / pod / perl588delta.pod

=head1 NAME

perldelta - what is new for perl v5.8.8

=head1 DESCRIPTION

This document describes differences between the 5.8.7 release and
the 5.8.8 release.

=head1 Incompatible Changes

There are no changes intentionally incompatible with 5.8.7. If any exist,
they are bugs and reports are welcome.

=head1 Core Enhancements

=over

=item *

C<chdir>, C<chmod> and C<chown> can now work on filehandles as well as
filenames, if the system supports respectively C<fchdir>, C<fchmod> and
C<fchown>, thanks to a patch provided by Gisle Aas.

=back

=head1 Modules and Pragmata

=over

=item *

C<Attribute::Handlers> upgraded to version 0.78_02

=over

=item *

Documentation typo fix

=back

=item *

C<attrs> upgraded to version 1.02

=over

=item *

Internal cleanup only

=back

=item *

C<autouse> upgraded to version 1.05

=over

=item *

Simplified implementation

=back

=item *

C<B> upgraded to version 1.09_01

=over

=item *

The inheritance hierarchy of the C<B::> modules has been corrected;
C<B::NV> now inherits from C<B::SV> (instead of C<B::IV>).

=back

=item *

C<blib> upgraded to version 1.03

=over

=item *

Documentation typo fix

=back

=item *

C<ByteLoader> upgraded to version 0.06

=over

=item *

Internal cleanup

=back

=item *

C<CGI> upgraded to version 3.15

=over

=item *

Extraneous "?" from C<self_url()> removed

=item *

C<scrolling_list()> select attribute fixed

=item *

C<virtual_port> now works properly with the https protocol

=item *

C<upload_hook()> and C<append()> now works in function-oriented mode

=item *

C<POST_MAX> doesn't cause the client to hang any more

=item *

Automatic tab indexes are now disabled and new C<-tabindex> pragma has
been added to turn automatic indexes back on

=item *

C<end_form()> doesn't emit empty (and non-validating) C<< <div> >>

=item *

C<CGI::Carp> works better in certain mod_perl configurations

=item *

Setting C<$CGI::TMPDIRECTORY> is now effective

=item *

Enhanced documentation

=back

=item *

C<charnames> upgraded to version 1.05

=over

=item *

C<viacode()> now accept hex strings and has been optimized.

=back

=item *

C<CPAN> upgraded to version 1.76_02

=over

=item *

1 minor bug fix for Win32

=back

=item *

C<Cwd> upgraded to version 3.12

=over

=item *

C<canonpath()> on Win32 now collapses F<foo\..> sections correctly.

=item *

Improved behaviour on Symbian OS.

=item *

Enhanced documentation and typo fixes

=item *

Internal cleanup

=back

=item *

C<Data::Dumper> upgraded to version 2.121_08

=over

=item *

A problem where C<Data::Dumper> would sometimes update the iterator state
of hashes has been fixed

=item *

Numeric labels now work

=item *

Internal cleanup

=back

=item *

C<DB> upgraded to version 1.01

=over

=item *

A problem where the state of the regexp engine would sometimes get clobbered when running
under the debugger has been fixed.

=back

=item *

C<DB_File> upgraded to version 1.814

=over

=item *

Adds support for Berkeley DB 4.4.

=back

=item *

C<Devel::DProf> upgraded to version 20050603.00

=over

=item *

Internal cleanup

=back

=item *

C<Devel::Peek> upgraded to version 1.03

=over

=item *

Internal cleanup

=back

=item *

C<Devel::PPPort> upgraded to version 3.06_01

=over

=item *

C<--compat-version> argument checking has been improved

=item *

Files passed on the command line are filtered by default

=item *

C<--nofilter> option to override the filtering has been added

=item *

Enhanced documentation

=back

=item *

C<diagnostics> upgraded to version 1.15

=over

=item *

Documentation typo fix

=back

=item *

C<Digest> upgraded to version 1.14

=over

=item *

The constructor now knows which module implements SHA-224

=item *

Documentation tweaks and typo fixes

=back

=item *

C<Digest::MD5> upgraded to version 2.36

=over

=item *

C<XSLoader> is now used for faster loading

=item *

Enhanced documentation including MD5 weaknesses discovered lately

=back

=item *

C<Dumpvalue> upgraded to version 1.12

=over

=item *

Documentation fix

=back

=item *

C<DynaLoader> upgraded but unfortunately we're not able to increment its version number :-(

=over

=item *

Implements C<dl_unload_file> on Win32

=item *

Internal cleanup

=item *

C<XSLoader> 0.06 incorporated; small optimisation for calling
C<bootstrap_inherit()> and documentation enhancements.

=back

=item *

C<Encode> upgraded to version 2.12

=over

=item *

A coderef is now acceptable for C<CHECK>!

=item *

3 new characters added to the ISO-8859-7 encoding

=item *

New encoding C<MIME-Header-ISO_2022_JP> added

=item *

Problem with partial characters and C<< encoding(utf-8-strict) >> fixed.

=item *

Documentation enhancements and typo fixes

=back

=item *

C<English> upgraded to version 1.02

=over

=item *

the C<< $COMPILING >> variable has been added

=back

=item *

C<ExtUtils::Constant> upgraded to version 0.17

=over

=item *

Improved compatibility with older versions of perl

=back

=item *

C<ExtUtils::MakeMaker> upgraded to version 6.30 (was 6.17)

=over

=item *

Too much to list here;  see L<http://search.cpan.org/src/MSCHWERN/ExtUtils-MakeMaker-6.30/Changes>

=back

=item *

C<File::Basename> upgraded to version 2.74, with changes contributed by Michael Schwern.

=over

=item *

Documentation clarified and errors corrected.

=item *

C<basename> now strips trailing path separators before processing the name.

=item *

C<basename> now returns C</> for parameter C</>, to make C<basename>
consistent with the shell utility of the same name.

=item *

The suffix is no longer stripped if it is identical to the remaining characters
in the name, again for consistency with the shell utility.

=item *

Some internal code cleanup.

=back

=item *

C<File::Copy> upgraded to version 2.09

=over

=item *

Copying a file onto itself used to fail.

=item *

Moving a file between file systems now preserves the access and
modification time stamps

=back

=item *

C<File::Find> upgraded to version 1.10

=over

=item *

Win32 portability fixes

=item *

Enhanced documentation

=back

=item *

C<File::Glob> upgraded to version 1.05

=over

=item *

Internal cleanup

=back

=item *

C<File::Path> upgraded to version 1.08

=over

=item *

C<mkpath> now preserves C<errno> when C<mkdir> fails

=back

=item *

C<File::Spec> upgraded to version 3.12

=over

=item *

C<File::Spec->rootdir()> now returns C<\> on Win32, instead of C</>

=item *

C<$^O> could sometimes become tainted. This has been fixed.

=item *

C<canonpath> on Win32 now collapses C<foo/..> (or C<foo\..>) sections
correctly, rather than doing the "misguided" work it was previously doing.
Note that C<canonpath> on Unix still does B<not> collapse these sections, as
doing so would be incorrect.

=item *

Some documentation improvements

=item *

Some internal code cleanup

=back

=item *

C<FileCache> upgraded to version 1.06

=over

=item *

POD formatting errors in the documentation fixed

=back

=item *

C<Filter::Simple> upgraded to version 0.82

=item *

C<FindBin> upgraded to version 1.47

=over

=item *

Now works better with directories where access rights are more
restrictive than usual.

=back

=item *

C<GDBM_File> upgraded to version 1.08

=over

=item *

Internal cleanup

=back

=item *

C<Getopt::Long> upgraded to version 2.35

=over

=item *

C<prefix_pattern> has now been complemented by a new configuration
option C<long_prefix_pattern> that allows the user to specify what
prefix patterns should have long option style semantics applied.

=item *

Options can now take multiple values at once (experimental)

=item *

Various bug fixes

=back

=item *

C<if> upgraded to version 0.05

=over

=item *

Give more meaningful error messages from C<if> when invoked with a
condition in list context.

=item *

Restore backwards compatibility with earlier versions of perl

=back

=item *

C<IO> upgraded to version 1.22

=over

=item *

Enhanced documentation

=item *

Internal cleanup

=back

=item *

C<IPC::Open2> upgraded to version 1.02

=over

=item *

Enhanced documentation

=back

=item *

C<IPC::Open3> upgraded to version 1.02

=over

=item *

Enhanced documentation

=back

=item *

C<List::Util> upgraded to version 1.18 (was 1.14)

=over

=item *

Fix pure-perl version of C<refaddr> to avoid blessing an un-blessed reference

=item *

Use C<XSLoader> for faster loading

=item *

Fixed various memory leaks

=item *

Internal cleanup and portability fixes

=back

=item *

C<Math::Complex> upgraded to version 1.35

=over

=item *

C<atan2(0, i)> now works, as do all the (computable) complex argument cases

=item *

Fixes for certain bugs in C<make> and C<emake>

=item *

Support returning the I<k>th root directly

=item *

Support C<[2,-3pi/8]> in C<emake>

=item *

Support C<inf> for C<make>/C<emake>

=item *

Document C<make>/C<emake> more visibly

=back

=item *

C<Math::Trig> upgraded to version 1.03

=over

=item *

Add more great circle routines: C<great_circle_waypoint> and
C<great_circle_destination>

=back

=item *

C<MIME::Base64> upgraded to version 3.07

=over

=item *

Use C<XSLoader> for faster loading

=item *

Enhanced documentation

=item *

Internal cleanup

=back

=item *

C<NDBM_File> upgraded to version 1.06

=over

=item *

Enhanced documentation

=back

=item *

C<ODBM_File> upgraded to version 1.06

=over

=item *

Documentation typo fixed

=item *

Internal cleanup

=back

=item *

C<Opcode> upgraded to version 1.06

=over

=item *

Enhanced documentation

=item *

Internal cleanup

=back

=item *

C<open> upgraded to version 1.05

=over

=item *

Enhanced documentation

=back

=item *

C<overload> upgraded to version 1.04

=over

=item *

Enhanced documentation

=back

=item *

C<PerlIO> upgraded to version 1.04

=over

=item *

C<PerlIO::via> iterate over layers properly now

=item *

C<PerlIO::scalar> understands C<< $/ = "" >> now

=item *

C<encoding(utf-8-strict)> with partial characters now works

=item *

Enhanced documentation

=item *

Internal cleanup

=back

=item *

C<Pod::Functions> upgraded to version 1.03

=over

=item *

Documentation typos fixed

=back

=item *

C<Pod::Html> upgraded to version 1.0504

=over

=item *

HTML output will now correctly link
to C<=item>s on the same page, and should be valid XHTML.

=item *

Variable names are recognized as intended

=item *

Documentation typos fixed

=back

=item *

C<Pod::Parser> upgraded to version 1.32

=over

=item *

Allow files that start with C<=head> on the first line

=item *

Win32 portability fix

=item *

Exit status of C<pod2usage> fixed

=item *

New C<-noperldoc> switch for C<pod2usage>

=item *

Arbitrary URL schemes now allowed

=item *

Documentation typos fixed

=back

=item *

C<POSIX> upgraded to version 1.09

=over

=item *

Documentation typos fixed

=item *

Internal cleanup

=back

=item *

C<re> upgraded to version 0.05

=over

=item *

Documentation typo fixed

=back

=item *

C<Safe> upgraded to version 2.12

=over

=item *

Minor documentation enhancement

=back

=item *

C<SDBM_File> upgraded to version 1.05

=over

=item *

Documentation typo fixed

=item *

Internal cleanup

=back

=item *

C<Socket> upgraded to version 1.78

=over

=item *

Internal cleanup

=back

=item *

C<Storable> upgraded to version 2.15

=over

=item *

This includes the C<STORABLE_attach> hook functionality added by
Adam Kennedy, and more frugal memory requirements when storing under C<ithreads>, by
using the C<ithreads> cloning tracking code.

=back

=item *

C<Switch> upgraded to version 2.10_01

=over

=item *

Documentation typos fixed

=back

=item *

C<Sys::Syslog> upgraded to version 0.13

=over

=item *

Now provides numeric macros and meaningful C<Exporter> tags.

=item *

No longer uses C<Sys::Hostname> as it may provide useless values in
unconfigured network environments, so instead uses C<INADDR_LOOPBACK> directly.

=item *

C<syslog()> now uses local timestamp.

=item *

C<setlogmask()> now behaves like its C counterpart.

=item *

C<setlogsock()> will now C<croak()> as documented.

=item *

Improved error and warnings messages.

=item *

Improved documentation.

=back

=item *

C<Term::ANSIColor> upgraded to version 1.10

=over

=item *

Fixes a bug in C<colored> when C<$EACHLINE> is set that caused it to not color
lines consisting solely of 0 (literal zero).

=item *

Improved tests.

=back

=item *

C<Term::ReadLine> upgraded to version 1.02

=over

=item *

Documentation tweaks

=back

=item *

C<Test::Harness> upgraded to version 2.56 (was 2.48)

=over

=item *

The C<Test::Harness> timer is now off by default.

=item *

Now shows elapsed time in milliseconds.

=item *

Various bug fixes

=back

=item *

C<Test::Simple> upgraded to version 0.62 (was 0.54)

=over

=item *

C<is_deeply()> no longer fails to work for many cases

=item *

Various minor bug fixes

=item *

Documentation enhancements

=back

=item *

C<Text::Tabs> upgraded to version 2005.0824

=over

=item *

Provides a faster implementation of C<expand>

=back

=item *

C<Text::Wrap> upgraded to version 2005.082401

=over

=item *

Adds C<$Text::Wrap::separator2>, which allows you to preserve existing newlines
but add line-breaks with some other string.

=back

=item *

C<threads> upgraded to version 1.07

=over

=item *

C<threads> will now honour C<no warnings 'threads'>

=item *

A thread's interpreter is now freed after C<< $t->join() >> rather than after
C<undef $t>, which should fix some C<ithreads> memory leaks. (Fixed by Dave
Mitchell)

=item *

Some documentation typo fixes.

=back

=item *

C<threads::shared> upgraded to version 0.94

=over

=item *

Documentation changes only

=item *

Note: An improved implementation of C<threads::shared> is available on
CPAN - this will be merged into 5.8.9 if it proves stable.

=back

=item *

C<Tie::Hash> upgraded to version 1.02

=over

=item *

Documentation typo fixed

=back

=item *

C<Time::HiRes> upgraded to version 1.86 (was 1.66)

=over

=item *

C<clock_nanosleep()> and C<clock()> functions added

=item *

Support for the POSIX C<clock_gettime()> and C<clock_getres()> has been added

=item *

Return C<undef> or an empty list if the C C<gettimeofday()> function fails

=item *

Improved C<nanosleep> detection

=item *

Internal cleanup

=item *

Enhanced documentation

=back

=item *

C<Unicode::Collate> upgraded to version 0.52

=over

=item *

Now implements UCA Revision 14 (based on Unicode 4.1.0).

=item *

C<Unicode::Collate->new> method no longer overwrites user's C<$_>

=item *

Enhanced documentation

=back

=item *

C<Unicode::UCD> upgraded to version 0.24

=over

=item *

Documentation typos fixed

=back

=item *

C<User::grent> upgraded to version 1.01

=over

=item *

Documentation typo fixed

=back

=item *

C<utf8> upgraded to version 1.06

=over

=item *

Documentation typos fixed

=back

=item *

C<vmsish> upgraded to version 1.02

=over

=item *

Documentation typos fixed

=back

=item *

C<warnings> upgraded to version 1.05

=over

=item *

Gentler messing with C<Carp::> internals

=item *

Internal cleanup

=item *

Documentation update

=back

=item *

C<Win32> upgraded to version 0.2601

=for cynics And how many perl 5.8.x versions can I release ahead of Vista?

=over

=item *

Provides Windows Vista support to C<Win32::GetOSName>

=item *

Documentation enhancements

=back

=item *

C<XS::Typemap> upgraded to version 0.02

=over

=item *

Internal cleanup

=back

=back

=head1 Utility Changes

=head2 C<h2xs> enhancements

C<h2xs> implements new option C<--use-xsloader> to force use of
C<XSLoader> even in backwards compatible modules.

The handling of authors' names that had apostrophes has been fixed.

Any enums with negative values are now skipped.

=head2 C<perlivp> enhancements

C<perlivp> implements new option C<-a> and will not check for F<*.ph>
files by default any more.  Use the C<-a> option to run I<all> tests.

=head1 New Documentation

The L<perlglossary> manpage is a glossary of terms used in the Perl
documentation, technical and otherwise, kindly provided by O'Reilly Media,
inc.

=head1 Performance Enhancements

=over 4

=item *

Weak reference creation is now I<O(1)> rather than I<O(n)>, courtesy of
Nicholas Clark. Weak reference deletion remains I<O(n)>, but if deletion only
happens at program exit, it may be skipped completely.

=item *