The web installer on the production site has been switched to using the Alpha channel for the Pixel 10, Pixel 10 Pro, Pixel 10 XL and Pixel 10 Pro Fold to avoid issues due to the anti-rollback counter update blocking installing a release with older firmware. This will avoid this issue for people using the web installer but not CLI install unless they download the Stable channel release.
Unfortunately, there are Wi-Fi issues with the Pixel 8a and Pixel 9a with the new release which draws into question whether it should be moved forward to Beta and Stable despite no issues noticed on other devices yet. We'll need to decide if it makes sense to move the release all the way to Stable for other devices without those 2. The main blocker is that it indicates there may be issues elsewhere even though there are no reports of it and no symptoms on our test devices.