Got my update this morning too, at 4am apparently. The SH2 lost connectivity until I rebooted it at 8am.
It could be coincidental, but wireless performance seems to be improved (5GHz) with faster, more stable, throughput from both my laptop and desktop (I switched to a 5GHz wireless adapter for my desktop after a pretty dire homeplug experience).
Here's a 'before and after' look at the update. My TBB graph looks a bit more settled.
