Part 2/2:

A lot of issues remain to be found and solved, especially on macOS and Windows, so the next release (1.4) will still use GTK3.

For those who'd like to play around with the new version that will power all releases after that, join our developer chat (building Inkscape's development branch requires a very up-to-date system, though!):

https://chat.inkscape.org

#inkscape #development