Apache has been patched to work with some third party mods (e.g. mod_dav and Frontpage extensions) correctly. There are many version updates in general. A bug with the MySQL install script has been fixed.
Apache, PHP, MySQL, and PostgreSQL have been updated. There are fixes in mod_jk, mod_dtcl, mod_roaming, and several others. The ability to build PHP as a CGI program has been added. Support has been added for mod_cvs, mod_fortress, and suPHP.