Last Updated: November 8th, 2013
Android 4.4 is out, and that means developers and tinkerers have already started digging through the code and various APKs in hopes of porting as many updated apps as possible for use with existing devices. The first and easiest app to extract is, unsurprisingly, the clock, which also acts as an alarm, timer, and stopwatch. I've installed it on my Galaxy Nexus without any issues and only had to clear data to get rid of the pesky force close, which is completely undestandable.
Last Updated: September 10th, 2013
A Google Play Music update v5.2 just popped up in the Play Store, though it's being slowly rolled out, as is the case with many big Google apps nowadays. The previous version is 5.1, and indeed I'm seeing quite a few changes inside that would warrant a point release.
Update 9/10/13 4:00pm PT: the official changelog has been posted:
* All Access Genre Radio is here!