The 2014Q1 highlights are: Baytrail critical fixes and improvements, power domain reworks, HDMI 4k and HDMI stereo 3D support.
On last release, Baytrail had a critical issue where eDP panels weren’t detected causing hard blank screens. This issue has been solved along with many other fixes. Also a preliminary support for MIPI DSI has been added.
The next platform codnamed Broadwell is yet on development but initial support has already landed on this release on 2D and Media drivers and on Kernel under prelimiminary_hw_support flag.
Components of this stack are:
For more details read the full release notes: https://01.org/linuxgraphics/downloads/2014/2014q1-intel-graphics-stack-release