What's new in the WebKitGTK 2.52.4 release?
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  - Add support for half-width fonts.
  - Improve content filter compilation by avoiding file copies.
  - Improve handling of out of disk space conditions when the NetworkProcess
    tried to write data in caches.
  - Improve how the CMake build system checks whether libatomic is required.
  - Fix painting scrollbars when their width changes.
  - Fix playback of certain YouTube videos with low frame rates.
  - Fix webkit://gpu not working in systems where neither libGL.so.1
    nor libOpenGL.so.0 are available.
  - Fix the build with librice 0.4 or newer when the GStreamer WebRTC
    backend is enabled at build configuration time.
  - Fix the build with USE_GSTREAMER_WEBRTC=OFF.
  - Fix the build with USE_GBM=OFF.
  - Fix several crashes and rendering issues.