Jeff has been maintaining it since, he just released 4.02.3 which is the latest available compiler http://psellos.com/2016/01/2016.01.the-minor-drag.html with iOS 9.2. Not that bad I'd say, that's pretty much bleeding edge. I don't know about swift because I don't know how to compile swift into an object file. Swift is not worth the hassle for me right now.

FWIW apparently it will be officially merged into the mainline compiler soon enough.