What's new in the WebKitGTK 2.40.2 release?
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  - Fix scrollbar jumping to top when drag released outside window in GTK4.
  - Fix video rendering when GL is disabled.
  - Fix flickering on looped videos when starting again.
  - Fix CPU usage on autoplaying videos.
  - Choose amount of painting threads depending on available CPU cores on GTK4.
  - Fix several crashes and rendering issues.