Intel's 3.0 X.Org Driver Has Now Been In Development For Two Years
This week marks two years since the first xf86-video-intel 3.0 development release with the leading changes being defaulting to SNA acceleration by default rather than UXA and enabling XMir support, but that compatibility with Ubuntu's next-gen display server was later dropped.
The current xf86-video-intel 3.0 development release is v2.99.917 and is now nine months old. As you can see from the Git log, there's still work routinely going into this DDX driver, which is largely maintained just by Chris Wilson at Intel. However, for whatever reason, they don't appear to be interested in pushing out v3.0.
Most Linux distributions have moved on to just shipping the xf86-video-intel 3.0 development Git code since it's needed for support with modern X.Org Servers, the latest Intel graphics hardware, and other modern functionality. Hopefully we'll see xf86-video-intel 3.0 get released before its development code turns three.