2.17.2 (unstable):

Gtk:
* Containter: Avoid unnecessary warnings about an unimplemented remove vfunc 
  in custom container widget classes.
  (Daniel Elstner)
  
Gdk:
* Pixbuf: Added create_for_stream() and create_for_stream_at_scale()
  for reading pixbufs from Gio file streams.
  (Jonathan Jongsma)