As you know, Nokia has officially announced the availability of PR 1.3 firmware update for N9 and its now roll-out. The update brings over 1000 quality improvements, including Mail, Facebook, and Twitter, as well as several small network and connectivity improvements.

Nokia has only published a bit of changelog and has not mentioned about these 1000 quality improvements. But folks over Maemo/MeeGo community at Maemo.org has published user reported changelog for PR1.3 update:

 Official Nokia changelog:

• Over 1000 quality improvements including Mail, Facebook, Twitter, minor network & connectivity improvements. Version 40.2012-21.3 (Official changelog)
• Twitter (1.3.50+0m8)
• Nokia Store (3.24.010+0m8)
• Nokia Music (0.4.5-1+0m8)
• Nokia Link (0.1.2+0m8)
• Maps (4.2.55+0m8)
• Facebook (1.3.2+0m8)
• Drive (2.0.8+0m8)
• AccuWeather (1.0.19+0m8)

User reported changelog:

• file upload now seems to work using the default browser (1)
• video decoding got improved (1) (2) (3)
• UI feels alot smoother now (1) (2) (3)
• Beep profile has an Icon on status bar and standby screen (1) (2)
• 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)
• Swipe resistance fix for RSS reader app (1)
• “Fenix not responding” message was renamed to “Mail not responding” (1)
• certificate-based access in MfE works now (1)
• Swype keyboard works again properly in terminal (was broken on pr1.2) (1)
• The browser top sites selection seems to be less laggy coming up (1)
• Camera improvements (out of centre focusing and improved autofocus in low light) (1)
• New fonts again (1)
• Nokia Maps positioning is a lot faster when in indoor (1)
• Twitter app now support timeline & mentions streaming (1)
• The weather widget background on the notification screen is now transparent (1) (2)
• Copy/Paste text is more precise now to select (1)
• Nokia Music store payment bug fixed (1)
• Various minor performance and layouting fixes were made for the application icons and folders (1)
• Bookmarks were opened using the previous default browser after changing the default browser (1)
• Application icons were sometimes incorrectly shown after unsuccessful application installation (1)
• Some default application names were truncated in some languages (1)
• Notification timestamps were incorrect in certain scenarios (1)
• Profile selection did not work after using headset (1)
• Lock screen did not update when connected to a TV (1)

PR1.3 demo on Nokia N9 via MyNokiaBlog: 

[Changelog Via]