yes, Angelo, 211.
I am familiar with upgrading firmwares since the early days (two Xerun 60A's and a 120A later...)
I also have all the earlier versions, and I can "downgrade" if needed...
Edit: I also use 211 in the xerun 60A, in my other bike (KP10), with a Trinity Duo2 17.5T motor and exactly the same gearing.
I have not switched motors, though.