2.76.0 (stable):

Glib:
* Dispatcher: Don't warn when a Dispatcher is deleted while
  messages are pending.
  (Kjell Ahlstedt) Issue #108 (PBS)
* Dispatcher: Add const versions of emit() and operator()()
  and deprecate the non-const versions.
  (Kjell Ahlstedt) Issue #103 (PBS)

Gio:
* ListModel: Add get_typed_object()
  (Kjell Ahlstedt) See issue gtkmm#132