1. Larger MCPCB with dedicated screws holes: All 4 optic legs are intact in the D4 v2.
2. 7 auxiliary LED colors options which is selectable through config UI, as well as the voltage indication function.
3. Knurling on the tube, magnet option in the tailcap, lanyard hole added.
4. Anduril UI
5. Couple of other small improvements
