I'm seeing lots of OutOfMemory errors that I was not previously seeing. Both Heap Space and PermGen memory. I know our build is very intensive, but I do bump up the memory usage in the individual build configurations (-Xmx1536m -XX:PermSize=32M -XX:MaxPermSize=512M) and this seems to have been fine. With this latest (and perhaps 1611...don't recall exactly when it started and they came out very close to each other), I've been seeing lots of memory errors.
It's hard to tell where they are coming from. I've tried beefing up the memory available to the agents and server and will see if that works.