According to Gregory Arkin's blog, Bim Boom Autodesk has just announced the end of ADT/ACA. Autodesk will no longer continue to produce it as a stand-alone product.
I remember distinctly fearing exactly the opposite when Autodesk bought my "beloved" Revit back in 2002, worried instead that it would vanish. Times change, though I guess we could say that the writing was "on the wall".
Not good news to ADT/ACA fans worldwide and I can empathize with their concerns. I'm glad I bet on the "correct horse", for once.
P.S. Did you notice the date...again? A mean but good one, Greg!