Hi Ray,
Just to clarify something. Your announcement of issuing 2.1.9(9) was on August 22, 2021 at 6:36 pm (the first post). In the same post you say: * Allows program’s interval day to be as small as 1 (previously the minimum is 2). This is NOT fully available yet because it still requires UI/app changes to go with it, which we will complete in a few days.
After that there is no new release of the firmware and that is why I am wondering whether changes were implemented in UI.