Yes, it does. I just upgraded my PHP version to 5.3 recently, and there were no issues to speak of.

I've got wamp running on PHP5.3.9 hanging on installation @ install dashboard..... hm.... :-(

uploaded to my live server! loada issues iniset() has been disabled for security reasons I can undisable this but I run under phpsuexec as to kkep the server secure as possible.. with todays hackers... under 5.3.9 it fails also to find a few zend files?

What version of php5.3 has concrete5 been benchmarked & tested on???