5.8.4 is a maintenance release for perl 5.8, incorporating various minor bugfixes and optimisations. This release updates Perl to the Unicode
Character Database, Version 4.0.1, and fixes some minor errors in Perl's UTF8 handling. It provides optimisations for Unicode case conversion
functions, map and sort, and on most platforms now provides protection against memory wrapping attacks. Please see the perldelta for the full details.
April 23, 2004