The July updates have been released and can be downloaded from here.
For details of what is included in the patches can be found here http://support.microsoft.com/?kbid=968802 along with installation details.
A few people have mentioned issues with the latest update but this appears to be because the OCS2009 DBUpgrade hasn’t been applied. This needs to be applied separately for a good description of how to apply this patch there are a number of blog entries such as the one on msunified.
Update 30 July
I left off the other updates below when I initially posted this