fleck 5810xtr2

I am looking to replace my gold series Culligan with something else. I am leaning towards Fleck but open to other options. Culligan came out and recommended to replace my current with an HE1 10". The pricing was just outrageous. I have been looking at the Fleck 5600SXT, 5810SXT and the 5810...

Different type of question.... Reference to another post I saw on this board ".... xtr2 controller (firmware version 1.7.1812)". I have a xtr2 with older firmware 1.3.7085. Question for dealers/distributors (or if a Fleck rep visits....) Is there a firmware upgrade path for the xtr2...