Over on the Collabora blog, Marius Vlad has an overview of Weston 15.0, which was released on February 19. Weston is the reference implementation of a Wayland compositor. The new release comes with a new shell that can be programmed using the Lua language, a new, experimental Vulkan renderer, smoother media playback, color-management additions, and more. One of Weston's fundamental pillars has always been making the most efficient use of display hardware. Over time, all the work we did to track and offload as much work as possible to this efficient fixed-function hardware has come at the cost of eating CPU time. In the last couple of release cycles, we've focused really hard on improving performance on even the most low-end of devices, so not only do we make the most efficient use of the GPU and display hardware, but we're also really kind on your CPU now. As part of that and to improve our tooling, Weston 15 now comes with support for the Perfetto profiler.