Today PR1.3 was made officially available and it is making the rounds on update availability to you guys.This seems generally more to streamline and polish your N9 experience.
The developer page isn’t really a changelog as such despite the mention of over 1000 quality improvements. That’s all really that it says
Change log of the Nokia N9 40.2012.21-3 (PR 1.3) firmware release (release date: 2.7.2012):Advertisements
- Over 1000 quality improvements including Mail, Facebook, Twitter, minor network & connectivity improvements.
Here’s an extended version – I think user generated.
- video decoding got improved (1) (2) (3)
- UI feels alot smoother now (1) (2) (3)
- Beep profile has an Icon on status bar (1)
- It seems that wireless networks are found much faster than before. In addition the device sees more networks than with PR1.2 (1)
- Fix for GNOME Bug 662125 – Sharing uses 100% CPU if a client requests a lot of small slices from a media file, most visible symptom is choppy video playback (1)
- Compatibility fix for XBox360 (GNOME Bug 664184): Previously showed a single song up to 5 times in the “All Songs” list (1)
- better NFC support with C7 (1)
- Inception 0.1 security hole got fixed (but there is Inception 0.2 already) (1)
Thanks Mariano for the tip!