Two issues still happen exactly the same as they used to.
When streaming to Apple TV 2 (only one I could try) every episode hangs around 30 seconds before the end. This is with subtitles and tracktv scrobble activated. Now streaming from a NAS the problem is exactly the same. If upon hanging you switch back to iPhone / iPad screen you can see the last 30 seconds. It happens on absolutely every show I play, be it mkv, m4v. I think it might have something to do with the moment when it reports to tracktv but it’s just a guess.
When selecting a video, downloading subtitles and then switching to Airplay, the default selection is for bold subs. You have to switch to normal every time, this is not saved as a preference which is annoying and time consuming since upon resuming play you have to wait a while before it re streams to atv.
Also, no way of sending rating of a show to tracktv if you are reading from a NAS. Not a bug but a suggestion for a subsequent update.