I'm trying to upgrade to 2.2.3 from 2.0.13 but after uploading and following all of the instruction in the patch I get:

Fatal error: Class xoopsmysqldatabase: Cannot inherit from undefined class xoopsdatabase in /mysqldatabase.php on line 55

Line 55 has:

class XoopsMySQLDatabase extends XoopsDatabase

I've searched the forums and seen others having same issue, but no resolution...