September Security update, Android 12L - Pixels, FP4

CalyxOS 3.9.0 - Android 12L is now available for all supported Pixels, i.e. Pixel 3 - 6a, and the Fairphone 4

Work on Android 13 continues!


Pixel 3a:

Android 13

Work is in progress and going well.

You can follow it at

The aim is to get some builds out ASAP for the Google supported Pixels, i.e. Pixel 4 - 6a, and then we will spend some time looking at the Pixel 3, 3a and Fairphone 4, see what is possible and post an update.


Warning The Android 13 update for Pixel 6, Pixel 6 Pro, and the Pixel 6a contains a bootloader update that increments the anti-roll back version. After flashing an Android 13 build on these devices you will not be able to install CalyxOS until our Android 13 update is released.

Please keep this in mind if you have a Pixel 6, 6 Pro or 6a. If you update to 13 at all, either on the stock OS or a custom ROM you should stick to it and avoid trying to downgrade. Doing so will brick your device, rendering it non functional.