This software update is to fix an issue with the gear pulse flow meter. The issue was that the flow would (correctly) appear to be not counted when the liquid was not flowing and the flow switch was not engaged. However, once liquid returned and the flow switch activated, the flow accumulation would not begin where it left off. The flow accumulation jumped as if it were erroneously counting some of the air flowing through while liquid was absent.
The display software for this will remain at A2.