Forum Moderators: coopster
Some of the key new features include: namespaces, late static binding, closures, optional garbage collection for cyclic references, new extensions (like ext/phar, ext/intl and ext/fileinfo), over 140 bug fixes and much more.
ChangeLog [php.net]
haven't had a chance to pick through it yet
I am dumping the idea of testing 5.3 on a Windows platform for now. I guess I should have tested some of the release candidates so I could have offered feedback during development!