I've got a 2019 Kona Mountain Bike with the Bosch Purion / 500wh battery / Performance Line CX (20mph) drivetrain - just bought last week (last years model / great deal!!) and determined I was several firmware revisions behind of each of the 3 components. Searched and searched on Google, this forum, and Bosch website for firmware revision history so I can see what changed but can't find any information other than what I captured in this screenshot below. Does Bosch provide any details with what changes are made in each revision?