When someone writes that a “new” device is not supported, the first place I look is the app store. To check if there is a test version, you just have to type /test after the URL. In this case, however, I read it on Slack.
A very comfortable solution is to use the App Version Checker app from @Adrian_Rockall (thanks for that). This app checks once a day if there is a new app version (final and test) available from the apps you have installed on Homey. But this app is only available in the community app store.
