# Builder 43.alpha0 This release is not intended for end-users. This is our first release of the GTK 4 port of GNOME Builder. It contains a significantly redesigned interface and foundry. Given the size of the Builder project this port is not yet complete. It is far enough along to get testing from distributions and enthusiastic users alike. However, expect missing features and please don't overwhelm upstream with issue reports on that. First check the GTK 4 port issue to see if it is already known at https://gitlab.gnome.org/GNOME/gnome-builder/-/issues/1675 Developer builds of Builder now use org.gnome.Builder.Devel as the application identifier so that we can allow parallel installing of nightly/stable Flatpaks. While Builder still supports plugins written in Python, there are no more Python-based plugins bundled with Builder. We've stopped using the bindings ourselves due to instability. We may change our scripting language but that is for another time. Thanks to everyone who has contributed to the GTK 4 port, it's been a full out scramble to port such a gigantic project in one cycle. -- Christian