The amazing WordPress Team have now updated both of these products.
Today we have two security-related releases available for both users of our main 2.2 branch and the legacy 2.0 branch. As these releases include only security and minor bugfixes they should not cause any plugin or theme compatibility issues, so you have no good excuse not to upgrade.
I had a look at the swatted bugs list, and I think I found one that would encourage me to upgrade ASAP: including a fix for Rich Text Edit of comments .
There are a couple of security issues (aren’t there always?) that have been fixed. Overall, I’d recommend upgrading asap, esp. now that the process is much easier than before. So go ahead, upgrade… why wait!