There is no v1.4a, so v1.4 is actually v1.4b as far i can tell.
Go try to find what Ubisoft pushed out there Updates.
There exist 1.0, 1.1, 1.2, 1.3 and v1.4b
https://www.silenthunteriii.com/uk/updates.php
This numbers have nothing todo with Starforce or not.