Doubt it. I've not heard of any changes in that department that require additional modules. However, 2.6.26 broke so much stuff (wifi card driver, modem driver, entire tty_driver struct re-worked ) for me I
ran back to 2.6.25.11. Drm was one of the things that
didn't give me trouble (82845G/GL[Brookdale-G]), ironically. It will be interesting to see what the major distros do once this kernel starts getting picked up.
Likely you've discovered the joy of owning your very own 2.6.26.x.