Google has just released a new version of Android: 4.4.3. After Sprint totally jumped the gun by announcing the update in April, Google has finally pushed 4.4.3 to the Nexus Factory Image page. T-Mobile has a changelog for the update, which is wildly descriptive:

Improvements Security enhancements

Various bug fixes

Google is hosting 4.4.3 images for the Nexus 5, both Nexus 7s, Nexus 10, and Nexus 4. These are full images that must be manually applied and will erase everything on your device. Users interested in not losing their data should wait for the OTA update, which is slowly rolling out to devices now. And if you're the type of person interested in seeing the code, the AOSP code drop is going on right now, too.