I left one thing undone in Thinstation 2.2.1 (Production).
It still says 2.2.1rc4 on your replimenu etc......
I am uploading a new version with that change.
If you have already downloaded, don't worry it is an easy fix. Just edit
packages/base/etc/thinstation.env and change the TS_VERION value on line
8 to 2.2.1
Sorry for the inconvenience.