Google Stadia has had a rocky launch to say the least, but in some positive news, Google have dropped a firmware update to enable the service on all Chromecast Ultra devices.
If you have access to Stadia already, we have some good news to share. We have rolled out an update to existing Chromecast Ultras that allow them to work with Stadia. Grab your Stadia Controller, sync it to any Chromecast Ultra & start playing on an additional TV in your house.
— Stadia (@GoogleStadia) December 18, 2019
Stadia was only available on the Chromecast Ultra devices that came with the Premier Edition bundle. This is great for anyone who wants to use Stadia on more than one TV without having to move their exisiting Chromecast.
Stadia is also available on Chromebooks and Google Pixel devices, with the promise to support more devices next year.