3.21.4 (unstable):

Gtk:
* ApplicationWindow: Add a correct wrap() method, deprecating the
  incorrect one.
  (Kjell Ahlstedt) Bug #767951
* FlowBox, ListBox: Add bind_model() and bind_list_store().
  (Kjell Ahlstedt, Murray Cumming) #755149
* UIManager, ActionGroup, RadioAction, RecentAction, ToggleAction:
  Deprecated, as in the C GTK+ API.
  (Kjell Ahlstedt) Bug #768573.

Build:
* Fix silent builds
  (Kjell Ahlstedt) Bug #768797