Hi - I believe the current plan is to release the 2014-Q4 stack for Ubuntu 14.10,
so we're not going to try and land Mesa 10.4 on Ubuntu 14.04.
The general policy is that we try and release the most recent Intel Graphics stack
for the most recent release of a supported distribution that will benefit from it (the
last release, for example, could have been targeted at 14.10, but 14.10 was already
pretty much at the same point as the 2014-Q3 release, so we went for 14.04 instead).
This time around, the Intel stack has moved on enough that it's worthwhile targeting
14.10, so that's where we're aiming this time.
When Mesa 10.4 will be available for 14.04?