It's still the last update on the website. .23 on the ST 16. Check your versions with the controller settings window to see where you are. If it's flying fine and you're happy I'd leave it alone as a lot of us experienced problems after the last firmware updates and do hope the new rumored firmware here is ready soon, properly tested, and more stable. I like the camera settings added to the trim controls so I am using the latest firmware. I have a new TH coming today so I'm hoping that it behaves and if it is, I'm jumping on a second for the new price.
Thanks for the response. It was delivered this afternoon so I have not fired up the ST 16 yet, I just checked make sure the whole order was there. I purchased it from Best Buy who had to have it shipped since there weren't any in our area.