Not cool Shimano, not cool.
Effective next Thursday, Hammerhead will remove all Di2 functionality from the Hammerhead Karoo series, via firmware update. This is at the request/demand of Shimano, who according to Hammerhead, now sees them as a competitor. This means all Di2-related functionality including Di2 battery status, gear indicators, page changes via Di2 hood buttons, and shifter mode, will all be removed. More at DC Rainmaker.