"Developer Preview" does mean a lot of things in Teams. In this case it means developer preview in the client, not the devPreview schema
Thanks @cagdasdavulcu for the test contributions to this new version - found a few things while running the integration tests that now is fixed. Running full integration testing now takes 1-3 hours :-)
Hello @wictorwilen , thank you too! I would suggest to integrate the integration tests into build pipeline, there by we don't have to run it and wait for it for 3h. Are you planing to setup a new call for discussing next steps?