Remember: If you are rooted do not accept the update!
The last update just mysteriously appeared one night for me. No notification, nothing. I just awake in the morning to a message that I had been updated. Luckily, Voodoo OTA rootkeeper restored root.
That update made my WiFi connect reliably. So it was very welcome.
Is there a risk of a 'crash and burn' if an update like this shows up, and you are stock, rooted?
I guess I should take the time to learn how to turn off auto updates, since I hate not being given a choice.