Today i upgraded my wordpress from 2.9.1 to 2.9.2 The upgrade process was pretty smooth. At first i had some trouble using the automatic update, so i ended up manually updating.
How to Manual Update:
The manual update process is quite simple. The wordpress website has full details on their website as to how to do this update. (http://codex.wordpress.org/Upgrading_WordPress) I will just go over the basics really fast.