Due to two high-priority issues, this new release isn't coming six months after 1.11.0, which is normally the timed cycle for the point releases. Assuming nothing major comes up, xorg-server 1.11.2 will go back to the six-week release cycle.
The two committed changes to this release come from NVIDIA's Aaron Plattner. It turns out the extension ABI had to be bumped, but wasn't done so after the respective breaking commit. The other is an fb change.
Read more in the X.Org Server 1.11.1 release announcement.