3.40.0 - 2021-03-19 ------------------- * GTK 4 compatibility fixes :mr:`148` :mr:`159` :mr:`144` :mr:`145` * Python 3.9 and 3.10 compatibility fixes :mr:`152` :mr:`156` * New minimal dependency requirements due to dropping support for Ubuntu 16.04 :mr:`151` * Python 3.6+ * glib 2.56+ * gobject-introspection 1.56+ * pycairo 1.16+