Re: Spring cleaning time
"Another solution is to work out which the last binary driver supported your card, and back-level the package to that, or even add the repository for the earlier release and back level, and then freeze those packages. But this later option can sometimes lead to strange booting effects, especially if the KMS support for the cards has changed."
And this is assuming the old drivers CAN be backported. Many old drivers break against new kernels that changed things beyond their understanding, and recall we're transitioning to the v4.x kernel series which already has a few major changes in it vs. v3.x (and pray you don't require a driver that was last used on a v2.x kernel).