What's new in the WebKitGTK 2.31.90 release? ============================================ - Add permission request API for MediaKeySystem access. - Fix rendering when using opacity filters on hardware accelerated layers. - Fix flatpak-spawn subsandbox to not clear environment variables. - Ensure a URI scheme handler can't be registered multiple times. - Fix several crashes and rendering issues. - The minimum required GStreamer version is now 1.14. - CEA-608 closed captions support (requires WEBKIT_GST_USE_PLAYBIN3=1 environment variable). - Advertise CBCS decryption and VP9 support in Thunder. - Advertise DASH as supported in the media player. - Improved support for playbin3. - Translation updates: Ukrainian.