This release brings in almost all of AA2 other than artifact detectors - the biggest change is the full integration of AA2's weather system. So there are now more weathers and better transitions. It also adds a number of hud, breath, and mask effects from Rulix, Smurth, and AMK. Rulix's AI pack is also now integrated for 1.4.1. There're new options in the AMK Options menu in-game, so do check that out. There are too many changes in this release so no patch from 2.x, sorry. More detailed list of changes below.