3.6.0 (unstable):

Gtk:
* ComboBox: Add set_active_id(), deprecating get_active_id(string).
  (Murray Cumming) Bug #685801 (Phil Wolff)
* TargetList: Add some add_*_targets() methods.
  (Murray Cumming)
* WindowGroup: Add list_windows() and get_current_grab().
  (Murray Cumming)