I've done a little testing and everything seems to be working okay, somewhat. If you see anything dramatically out of place … like things or functions not working. Then please let me know. You can write it here or in the "bug" section of the forum.
The only quirk I had was trying to load the site again. I couldn't get in until I cleared my browser's cache. I think it had something to do with a security key, that I've changed along with the upgrade. Once the cache was cleared and reset, the site loaded up quickly again.