People accustomed to using synaptic might want to begin considering alternative tools, because synaptic has been removed from buster.
More info: https://tracker.debian.org/news/1037065/synaptic-removed-from-testing/ https://tracker.debian.org/pkg/synaptic https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=818366#55 https://release.debian.org/buster/freeze_policy.html https://www.reddit.com/r/debian/comments/b7ylny/synaptic_no_longer_in_buster_should_i_start/