Kristian Høgsberg released version 1.2.2 of the Weston reference compositor today for Wayland. The new releases are mainly to iron out some unexpected bugs that landed in the recent Weston 1.2.1
release from last week. Wayland meanwhile is still at version 1.2.1.
Weston 1.2.2 fixes a crash upon fast click on the titlebar, a header file issue, a 32-bit test suite / client issue, and an evdev problem. These are the four main fixes for Weston 1.2.2 while no critical bugs warrant a Wayland 1.2.2 release.
More details on these 1.2.1 regression fixes warranting the Weston compositor 1.2.2 release can be found via the mailing list announcement