10.6.4 - Go For It

I have been running the 10.6.4 update since release, while keeping an eye on MacFixIt and Macintouch to see who is having problems. The good news is, none for me and few for others. Apparently it does downgrade your Flash installation, though, so before you download the 10.6.4 Combo Update (huge!) get Flash 10.1.53.64 or newer from Adobe so you can install immediately after updating the OS.