From gtkmm3 to gtkmm4
@kjellahl
Submitted by Kjell Ahlstedt Link to original bug (#773642)
Description
This bug report is intended to be a place for discussing the upgrade from gtkmm 3 to gtkmm 4. Gtk+ has announced a new versioning scheme: https://blog.gtk.org/2016/09/01/versioning-and-long-term-stability-promise-in-gtk
To be compatible with future gtk+ versions and branches, gtkmm will have to stick to the same, or a very similar, versioning scheme and branching scheme. This has been discussed on the gtkmm-list. A bug report is a good place to continue the discussion.
Version: 3.91.x