Android 13 is already rolling out to Google’s Pixel phones, however, if you flash the update onto your Pixel 6, Pixel 6 Pro, or Pixel 6A with the company’s Tensor chip, you won’t be able to flash back to Android 12 due to a bootloader change, according to a note on Google’s developer website.

“Warning: The Android 13 update for Pixel 6, Pixel 6 Pro, and the Pixel 6a contains a bootloader update that increments the anti-rollback version,” the notice reads. “After flashing an Android 13 build on these devices you will not be able to flash older Android 12 builds.”

In addition, if you’re a member of the Android 13 beta testing group and you’d like to depart the cycle of rapid updates without wiping your device — which is normally required to leave the queue — now is the time to do so. Once your device has been updated to the most recent version of Android, you can unenroll by visiting Google’s beta site. Alternatively, if you remain in the beta group, you will get early access to test releases of upcoming Feature Drops for Android 13.