You should hear anytime. After today, there have been 4 working days since the 9th. It takes a while for them to get it in the mail and then the mail takes a while, etc.
If you want, you could always call up and ask them about what the change in status means and what you are supposed to do, etc. That will at least put a little 'salve' on the anxious heart we all get.
Good luck.