Interesting. I was under the impression that Telsa uses the Bosch iBooster braking system. Same as what GM was/is using. Which would allow them to do regen on brakes if they wanted to (they don't). I didn't think the brakes were physically any different between the Bolt and the Tesla, just how the companies decide to actuate them in relation to regen.
From what I understand the Bolt will have the braking tech components of the 2017 Volt. Software will be different. If you've driven a Volt, you will know it's different than a Tesla system. It's not subtle.