Experimental releases for the Pixel 8 and Pixel 8 Pro are now available. Fingerprint unlock support isn't working yet and other features may be missing. It likely won't be necessary to reinstall to move to future production releases.
If you want to get the releases and help with testing, please come to https://app.element.io/#/room/#testing:grapheneos.org to find instructions and related information.
If you do and notice any bugs, please report them in that room, so that we can have a centralized place for this, instead of separate reports spanning multiple channels.