Hi,
Happy St Paddy's day!
I'm sorry you've had trouble with the module. You are indeed correct, the simulator no longer works with 2.22, which is what versions 3.6.1 and below support.
Protx introduced the new protocol with a whole 4 days notice, all of which I was on holiday for so I had no chance to update the module for 2.23 in time!
Version 3.8.0 is complete and due for release tomorrow. However I can send you a version now if you contact me privately.
Lol, I'm afraid just changing the number won't work, some of the fundamentals of the protocol have changed.
As I said, you can get in contact with me for the new version, wait for the new version, or simply carry out your testing using the Test server instead of the Simulator as it is backwards compatible with 2.22 (and will be for some time reassuringly)!
Once again, sorry you encountered these problems, it's impossible to write software for a protocol if the company doesn't inform you it's going to change, with sufficient notice!
All the best...
Conor
Ceon