Version 239 is live on Google Play and I've updated the links in the first post. It includes bugfixes but not in the registration part.
I want to apologize to F-Droid users because you won't see a beta for this release. Releasing a beta on F-Droid requires me to create a release tag, which I don't want to do because this is a "special beta" for internal testing only. Besides, releasing a beta just for updating it would mean that you couldn't try the new registration method without deleting your account, so the need for a different apk/application id.