And oddly enough they are being phased out by GM in a number of 2016 models too as they've reached end of life and are being replaced. The E39/E39A have been a major pain for us never giving us a breather, so many OS updates (I think over 50 OS's) and used on so many different platforms and engine configurations they are a high maintenance ECM as far as R&D time goes.

Checking back it looks like around June/July 2010 was when we released support for the E39, so yeah the initial post here is a little out of date.