Snapcraft release uses commas:- snapcraft release foo 1 candidate,beta Snapcraft close does not:- root@snapcrafters:~# snapcraft close warzone2100 beta,candidate Could not close channel: Not a valid channel: beta,candidate root@snapcrafters:~# snapcraft close warzone2100 beta candidate Track Arch Channel Version Revision latest amd64 stable 3.2.3 12 candidate ^ ^ beta ^ ^ edge 3.2.3 14 armhf stable 3.2.3 10 candidate ^ ^ beta ^ ^ edge 3.2.3 13 i386 stable 3.2.3 11 candidate ^ ^ beta ^ ^ edge 3.2.3 15 The beta and candidate channels are now closed. This feels inconsistent.