Mir 2.30.0

• New upstream release 2.30.0

  • ABI summary:

    • miral ABI unchanged at 8
    • mircommon ABI unchanged at 13
    • mircore ABI unchanged at 3
    • miroil ABI unchanged at 10
    • mirplatform ABI unchanged at 35
    • mirserver ABI bumped to 69
    • mirwayland ABI unchanged at 7
    • mirplatformgraphics ABI unchanged at 24
    • mirinputplatform ABI unchanged at 11

  • Enhancements:

    • [Wayland] Add wl_fixes support #5193 (@andogq's first contribution!)
    • Add a typed wrapper for wl_array #5194 (@yashsolctl's first contribution!)
    • workshop: add run nest <shell> #5089
    • Require Rust when building Mir and package the Rust evdev input platform #5185
    • Build with libxml++ 5.0 where available, with a libxml++ 2.6 fallback for older distributions #5182, #5201

  • Bugs fixed:

    • Fix horizontal scroll-speed configuration #5151
    • Do not treat attached surfaces, such as on-screen keyboards, as kiosk windows #5157
    • Report wl_surface role conflicts using the correct Wayland protocol error #5005
    • Ensure pointer enter and leave events see the final surface geometry after window-management changes #5165
    • Safely handle unmanaged surfaces in window_at() #5187
    • Set the cursor role on hidden cursor surfaces #5168
    • Reuse the screen-shooter renderer and handle output resizing correctly #5119
    • Fix GBM/KMS multi-display configurations that do not use clone mode #5126

  • Documentation:

    • Clarify input-trigger protocol descriptions #5074
    • Add a project roadmap #5179
    • Document the release-burning process #5211
    • Update the supported environments for release testing #5140