Version 1.91 (GTK3) of the powerful terminal emulator Terminator was released yesterday, bringing a few enhancements, as well as numerous fixes fixes.
While the Terminator development is slow, the application is still actively improved, with version 1.91 being the second GTK3 pre-release.
According to Stephen Boddy, the main Terminator developer, the GTK3 branch is already much better than the old GTK2 Terminator version and is already used by some Linux distributions (including Ubuntu 17.04 Zesty Zapus).