- Drop support for Gtk2
- Make glibtop an optional dependency ("About System" tab)
- about: Add system info tab
- about: Hide system tab conditionally
- dialogs: Use symbolic window-close icon
- Fix Window not visible when grabbing keyboard (Bug #16054)
- Do not use gdk_screen_get_monitor_at_point (Bug #15781)
- Replace gtk_show_uri (Bug #15781)
- Replace gdk_display_get_screen (Bug #15781)
- Replace gdk_keymap_get_default (Bug #15781)
- Replace deprecated device functions (Bug #15781)
- Replace gdk_error_trap_* and gdk_flush (Bug #15781)
- Ignore what is hard to replace (Bug #15781)
- Bump gtk to 3.22 (Bug #15781)
- Add a dialog to confirm closure of multiple tabs (bug #15873)
- Translation Updates:
  Bulgarian, Chinese (China), Chinese (Taiwan), Croatian, Czech, Danish,
  Dutch, English (United Kingdom), Finnish, French, Galician, German,
  Hungarian, Interlingue, Italian, Japanese, Korean, Norwegian Bokmål,
  Norwegian Nynorsk, Polish, Portuguese, Portuguese (Brazil), Russian,
  Serbian, Slovak, Slovenian, Spanish, Turkish