This software update is to fix an issue caused by the bug fix in version 1.1.1. The issue was that the carrier flow would accumulate only during certain conditions. If the system was configured with the mass meter, then operation should be normal with version 1.1.1. However, if the system was configured with the geared pulse flow meter, then the carrier flow would only accumulate if the product flow sensor was engaged. The correct handling is for the carrier flow to be accumulated at all times, only dependent on the carrier flow itself.
This version expects display version of A3. Display version A3 was introduced with controller softer version 1.1.0.