I think Scott suggested switching to a 2.2 stream to be able to continue working, while 2.1 will be the "stable" version (in case we need to put any more updates into it for trial-3). I just created that "etoys2.2" stream, and also published a first update.
To switch your image to the new version do "SystemVersion setVersion" and enter "etoys2.2". Then load updates, you should get update 1665.
- Bert -