I just had my first freeze yesterday, two days after updating to 1308 which means the freezing/restart issue has not been addressed yet, 7 whole months after Lumia 920 was released and after TWO major updates.
Also the Store update notification bug, is also not fixed. The Store does not check for updates, it simply doesn't.
Third and less important, the Bing image lockscreen bug which displays "yesterday's" Bing Image on my lockscreen has not been fixed as well.
Very disappointed especially with the first two issues. At this point I have raised the "Yellow Card" for this device, no matter how much I like both Windows Phone and the 920's hardware. Next card is Red and immediately move to another device, it all depends on my mod, (and what Google will bring on table with the Android 5 and next Nexus) but I am loosing patient badly with all this unacceptable "child diseases".