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+=head1 NAME
+
+perl573delta - what's new for perl v5.7.3
+
+=head1 DESCRIPTION
+
+This document describes differences between the 5.7.2 release and the
+5.7.3 release.  
+
+(To view the differences between the 5.6.0 release and the 5.7.0
+release, see L<perl570delta>.  To view the differences between the
+5.7.0 release and the 5.7.1 release, see L<perl571delta>.  To view
+the differences between the 5.7.1 release and the 5.7.2 release,
+see L<perl572delta>.)
+
+=head1 Changes
+
+This is just a selected list of some of the more notable changes.
+The numbers refer to the Perl repository change numbers; see
+L<Changes58> (or L<Changes> in Perl 5.8.1).  In addition to these
+changes, lots of work took place in integrating threads, PerlIO, and
+Unicode; general code cleanup; and last but not least porting to
+non-UNIX lands such as Win32, VMS, Cygwin, DJGPP, VOS, MacOS Classic,
+and EBCDIC.
+
+=over 4
+
+=item 11362
+
+add LC_MESSAGES to POSIX :locale_h export tag
+
+=item 11371
+
+add DEL to [:cntrl:]
+
+=item 11375
+
+make h2ph understand constants like 1234L and 5678LL
+
+=item 11405
+
+Win32: fix bugs in handling of the virtualized environment
+
+=item 11410
+
+fix a bug in the security taint checking of open()
+
+=item 11423
+
+make perl fork() safe even on platforms that don't have pthread_atfork()
+
+=item 11459
+
+make switching optimization and debugging levels during Perl builds
+easier via the OPTIMIZE environment variable
+
+=item 11475
+
+make split()'s unused captures to be undef, not ''
+
+=item 11485
+
+Search::Dict: allow transforming lines before comparing 
+
+=item 11490
+
+allow installing extra modules or bundles when building Perl
+
+=item 11516
+
+add -Wall in cflags when compiling with gcc to weed out dubious
+C practices
+
+=item 11541
+
+pluggable optimizer
+
+=item 11549
+
+WinCE: integrate the port
+
+=item 11589
+
+Win32: 4-arg select was broken
+
+=item 11594
+
+introduce the perlivp utility for verifying the Perl installation
+(IVP = Installation Verification Procedure)
+
+=item 11623
+
+rename lib/unicode to lib/unicore to avoid case-insensitivity problems
+with lib/Unicode
+
+=item 111631
+
+remove Time::Piece
+
+=item 11643
+
+document that use utf8 is not the right way most of the time
+
+=item 11656
+
+allow building perl with -DUSE_UTF8_SCRIPTS which makes UTF-8
+the default script encoding (not the default since that would
+break all scripts having legacy eight-bit data in them)
+
+=item 11725
+
+division preserving 64-bit integers
+
+=item 11743
+
+document the coderef-in-@INC feature
+
+=item 11794
+
+modulo (%) preserving 64-bit integers
+
+=item 11825
+
+update to Unicode 3.1.1
+
+=item 11865
+
+add the \[$@%&*] prototype support
+
+=item 11874
+
+oct() and hex() in glorious 64 bit
+
+=item 11877
+
+Class::Struct: allow recursive classes
+
+=item 11993
+
+fix unpack U to be the reverse of pack U
+
+=item 12056
+
+VMS: waitpid enhancements
+
+=item 12180
+
+unpack("Z*Z*", pack("Z*Z*", ..)) was broken
+
+=item 12243
+
+Devel::Peek: display UTF-8 SVs also as \x{...}
+
+=item 12288
+
+Data::Dumper: option to sort hashes
+
+=item 12542
+
+add perlpodspec
+
+=item 12652
+
+threadsafe DynaLoader, re, Opcode, File::Glob, and B
+
+=item 12756
+
+support BeOS better
+
+=item 12874
+
+read-only hashes (user-level interface is Hash::Util)
+
+=item 13162
+
+add Devel::PPPort
+
+=item 13179
+
+add the sort pragma
+
+=item 13326
+
+VMS: fix perl -P
+
+=item 13358
+
+add perlpacktut
+
+=item 13452
+
+SUPER-UX: add hints file
+
+=item 13575
+
+Win32: non-blocking waitpid(-1,WNOHANG)
+
+=item 13684
+
+introduce the -t option for gentler taint checking
+
+=item 14694
+
+add the if pragma
+
+=item 14832
+
+implement IV/UV/NV/long double un/packing with j/J/F/D
+
+=item 14854
+
+document the new taint behaviour of exec LIST and system LIST
+
+=back
+
+=head1 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 B<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 C<perl -V>, will be sent off to perlbug@perl.org to be
+analysed by the Perl porting team.
+
+=head1 SEE ALSO
+
+The F<Changes> file for exhaustive details on what changed.
+
+The F<INSTALL> file for how to build Perl.
+
+The F<README> file for general stuff.
+
+The F<Artistic> and F<Copying> files for copyright information.
+
+=head1 HISTORY
+
+Written by Jarkko Hietaniemi <F<jhi@iki.fi>>, with many contributions
+from The Perl Porters and Perl Users submitting feedback and patches.
+
+Send omissions or corrections to <F<perlbug@perl.org>>.
+
+=cut