Just about a month ago Intel had released the xf86-video-intel 2.4.0 driver
for their IGP graphics graphics hardware running X.Org. This update brought Intel GMA X4500HD
support, Intel 965 EXA RENDER extension improvements, HDMI support, and much more. Today though Intel has issued its first bug-fix release for this open-source driver.
The xf86-video-intel 2.4.1 driver takes care of a few regressions and bug-fixes until the GEM-enabled xf86-video-intel 2.5.0 driver
with a new X acceleration architecture
is released later this year. Some of these updates include man page typo fixes, avoiding a segmentation fault with the Intel GMA graphics on the Mac Mini, reorganizing the video BIOS code, add in handling for a few quirks, fix SDVO HDMI encoding detection, and disable clock gating for the GMA 4-Series Chipsets are among the changes.
The xf86-video-intel 2.4.1 announcement written by Intel's Zhenyu Wang can be read on the X.Org mailing list