What's new in the WebKitGTK 2.52.2 release?
===========================================

  - Improve handling of real-time threads.
  - Fix scrollbar rendering glitches visible in some GPU configurations.
  - Fix V4L2 hardware accelerated media codecs now working due to overly
    restrictive sandbox device access rules.
  - Fix leak of bitmap images in webkit_favicon_database_get_favicon_finish().
  - Fix the build with USE_GTK4=OFF.
  - Partially fix the build in BSD and other non-Linux Unix systems.
  - Fix several crashes and rendering issues.