Just did system update and forgot I had TWRP and root and now the updates changes havent taken affect! Help! I have just installed the Android 4.3 update on my Nexus 7 which is rooted with a vanilla kernel with TWRP installed. It rebooted after the update and it booted straight into TWRP so I rebooted again and then it booted into Android as normal but the OS is still on 4.2.2 and not 4.3. I have tried going into About This Tablet then pressing Update and its saying its not on the latest version...
Help!
The best way to 4.3 may be unrooting and flashing the stock recovery image.

I used the Nexus Root Toolkit 1.6.4 to install 4.3 on a Galaxy Nexus having some minor problems. I would suggest waiting for NRT 1.6.6 which will have full support for 4.3