I just updated to 2.9.7 on Mac OS 10.8.3.
When using Outlook 2011 14.3.2 it often locks up. If I am writing a letter, sometimes I am unable to enter the cursor into the email or the cursor disappears. The only way to get it back it to quit Outlook and then restart.
This has happened on rare occasions before but has been quite frequent (had to restart Outlook 4 times today) since updating.