Hi, I'm the new upstream maintainer of GtkDatabox and we have released version 1.0.0 this year, which depends now on GTK3, please update it on Debian. The packages which depend on it are klavaro, xoscope and brp-pacu. >From those, the only upstream which still depends on old gtkdatabox is brp-pacu, but there is a fork which has done the upgrade to use the new GTK3 version at GitHub, see: https://github.com/matthew-dews/brp-pacu The problem is that they have not released this new version yet, but I could provide another fork and release, if that is the case. Thanks, Felipe Castro