Available first interim release of a toolkit for creating a graphical user interface – GTK 4.0.1 , which offers a large batch of minor fixes to address bugs found since GTK 4.0 was released last month. The new version also includes improved documentation and improvements to the design theme. Testing of GTK, pango and gdk-pixbuf assemblies for macOS in the continuous integration system has been established.
Significant changes include the translation of the gstreamer multimedia backend to use OpenGL textures, which made it possible to get rid of unnecessary frame transfer between GPU and CPU when using hardware video decoding acceleration , for example, using VAAPI.
It is also noted that the GtkVideo widget is still experimental and has not yet been brought to the functionality of full-fledged video players. For example, GtkVideo can be used to play video from a file or from a URL, but it does not support features such as multi-channel audio, image overlay, and output selection.