Yesterday was a relatively big day for Android, at least compared to our regularly scheduled programming - Google sent us a gift in the form of the 4.4.3 update, available immediately via factory images and in AOSP. The problem with factory images, however, is that they require an unlocked bootloader to flash, so many of you opt in to wait for the respective OTAs.
The first such OTA has just arrived - it's for the 2013 Nexus 7 Wi-Fi (not for LTE yet), also known as Razor.
Note: You have to be on Android 4.4.2 (KOT49H) for this OTA to succeed.
File size: 73.8MB
If you're not familiar with the manual installation process, proceed to this guide for an earlier update, and you'll be set up with Android 4.4.3 in no time. I just flashed my N7 from 4.4.2 to 4.4.3 all in about 5 minutes.