G:\perls>perldoc perldelta
NAME
    perldelta - what's new for perl v5.6.x

DESCRIPTION
    This document describes differences between the 5.005 release and the
    5.6.2 release.

Summary of changes between 5.6.1 and 5.6.2
    The 5.6.2 release is aimed at providing only a minimal update to perl
    5.6.1, which wasn't being compatible with some of the newest compilers
    (most notably gcc 3.x), libraries and operating systems that have
    appeared since 5.6.1 was released.

    Note also that perl no longer installs itself as /usr/bin/perl by
    default if it exists. (see the INSTALL file.)

    The following modules have been upgraded :

    Data::Dumper 2.121
    DB_File 1.806
    ExtUtils::MakeMaker 6.17
    File::Spec 0.86
    File::Temp 0.14
    Safe 2.10
    Test 1.24
    Test::Harness 2.30
    The following modules were added :

    Test::Builder 0.17
    Test::More 0.47
    Test::Simple 0.47
    if 0.03