What year did the HVS Suspension and wider tracks first appear on the M4 Medium Tank.?

Was this suspension system similar to the Hotchkiss type suspension on French and the Aussie Sentinel tanks? Cheers John.

The first HVSS with wide track M4A3 and M4A1 tanks appeared on the battlefield in December 1944 just in time for the Ardennes offensive. And no, it really had no relationship to the earlier Hotchkiss types.