$ snapcraft release gitlptools 23 candidate Track Arch Channel Version Revision latest amd64 stable 388db20 21                  candidate f2701d3 23                  beta ^ ^                  edge f2701d3 23 The 'candidate' channel is now open. $ snapcraft close gitlptools edge Track Arch Channel Version Revision latest amd64 stable 388db20 21                  candidate f2701d3 23                  beta f2701d3 23                  edge ^ ^ The edge channel is now closed. --- Note how it's 'candidate' in single quotes but edge is not quoted $ snapcraft version snapcraft, version 2.41