2.91.3 (unstable): Gtk: * Assistant: Added next_page() and previous_page(). * Box: Added a public constructor. * RecentInfo: Added create_app_info(). * Scrollable: Added get/set_h/vscroll_policy(). * Widget: Added in_destruction(). (Murray Cumming) * Style: Correct the reference counting when deriving. (José Alburquerque)