KitKat 4.4 Official Release for Nexus 7 (2013)

I know that a download exists to get a jump on the official release thanks to Paranoid Android:

http://global.christianpost.com/news/nexus-7-nexus-4-android-4-4-kitkat-update-now-available-107908/

However, how long has it historically taken to release the official updates? Does anyone recall? Weeks? Months? I've been eager to put it on my tablet...