TEXA typically releases 3-4 major updates per year. This is their version 48 updates. Updates now include more functionality for Allison, Cummins, E-One, Freightliner, International body controllers, MaxxForce engines, Mack Trucks, Volvo Trucks, Kenworth, Peterbilt, Sterling, Western Star, and much more.
This PDF gives more details: https://blog.diesellaptops.com/wp-content/uploads/2019/10/Release-Notes_TRUCK_48_NA.pdf