the release plan for GTK 4. It is noted that bringing GTK 4 to the proper state will require about another year (GTK 4 from summer 2016). By the end of 2019, another experimental release of the GTK 3.9x series is planned, and in the spring of 2020, a final test release of GTK 3.99 will be proposed, including all the intended functionality. The release of GTK 4 is expected in early autumn 2020, simultaneously with GNOME 3.38. Before the final release, five planned functional changes must be completed, including replacing fixed widgets with scalable views, a new API for animating and translating effects and progress indicators, finalizing the overhaul of the popup menu system (developing ideas related to nested submenus and dropdown menus), replacing the old hotkey system with event handlers, and refining the new API for Drag&Drop operations.
Among the optional features that we hope to add before the release of GTK 4 are the 'UI designer' widget, improved upper panel splitting tools, and a widget repository through which experimental widgets can be delivered without integration into the main GTK framework. Development of tools for porting applications to GTK4 is also mentioned, such as preparing corresponding versions of the GtkSourceView, vte, and webkitgtk libraries, as well as ensuring platform support. For example, the rendering system based on OpenGL works well on Linux, while the Vulkan-based system requires further development. On Windows, the Cairo library is used for rendering, but an alternative implementation based on (a layer for translating OpenGL ES calls into OpenGL, Direct3D 9/11, Desktop GL, and Vulkan) is in development. A fully functional rendering backend is still absent for macOS.
A plan for the formation of the GTK 4 release is scheduled. 🥇GTK 4 is expected in the autumn of next year | ProHoster
Source: opennet.ru
