3.17.3 (unstable):

Gdk:
* Deprecate open_default_libgtk_only() and supports_composite().
  (Kjell Ahlstedt)
* Window: Deprecate get/set_composited(), set_static_gravities() and flush().
  (Kjell Ahlstedt)

Gtk:
* Actionable: Add keep_return to the _WRAP_VFUNC() for get_action_name.
  (Kjell Ahlstedt) Bug #705124.
* Adjustment: Deprecate changed() and value_changed().
  (Murray Cumming)
* CellRendererPixbuf: Deprecate property_follow_state().
  (Kjell Ahlstedt)
* Add ModelButton.
  (Kjell Ahlstedt)
* Popover: Wrap the pointing-to property.
  (Kjell Ahlstedt) Bug #723394
* Add PopoverMenu.
  (Kjell Ahlstedt)
* Scrollable: Add get_border() and ScrolledWindow::signal_edge_reached()
  (Kjell Ahlstedt)
* ScrolledWindow: Add signal_edge_reached().
  (Kjell Ahlstedt)
* SearchEntry: Add handle_event() and new signals
  (Kjell Ahlstedt)

Documentation:
* Demo:
  - Show data files in extra tabs in the Gtk::Notebook.
  - Remove the last traces of the UIManager and stock browser demos.
  - Add Builder demo.
  - Use resource files for the source code and data files.


Build:
* Missing GTKMM_API for CellLayout.
  (Mikhail Titov) Bug #748720
* Demo:  Use getc() if HAVE_GETC_UNLOCKED is not defined.
  (Mikhail Titov) Bug #748657


3.16:

API additions since 3.14:

Gdk:
* Device: Add get_vendor_id() and get_product_id().
  (Murray Cumming)

Gtk:
* CssProvider: Add CssProviderError and signal_parsing_error()
  (Kjell Ahlstedt)
* Add CssSection.
  (Kjell Ahlstedt)
* Dialog: Add constructors with DialogFlags,
  for instance to create a dialog with a header bar.
  (Kjell Ahlstedt) Bug #738513.
* Grid: Add attach_next_to() without the 'sibling' parameter.
  (Kjell Ahlstedt)  Bug #739340.
* Label: Add get/set_xalign/yalign() and properties.
  (Murray Cumming)
* ScaleButton: Add a constructor without the icons.
  (Murray Cumming)
* ScrolledWindow: Add get/set_overlay_scrolling() and property.
  (Juan R. García Blanco)
* SearchEntry: Add the search_changed signal
  (Kjell Ahlstedt)
* Stack: Add hhomogeneous and vhomogeneous properties.
  (Juan R. García Blanco)
* Add StackSidebar.
  (Kjell Ahlstedt)
* StackSwitcher: Add unset_stack().
  (Kjell Ahlstedt)
* Added StyleProperty
  (Mark Vender) Bug #673317.
* TextTag: Add fallback, fallback-set, letter-spacing, and
  letter-spacing-set properties.
  (Juan R. García Blanco)
* TextBuffer:
  - Add insert_markup().
  - Add the copy_target_list and paste_target_list properties.
  - Wrap the serialize()/deserialize() methods.
  (Kjell Ahlstedt)
* TextView: Add monospace property.
  (Juan R. García Blanco)
* Widget: Added get_action_group() and list_action_prefixes().
  (Murray Cumming)