In 2.1.0.124 at least, ngclient has only one stop button. It flashes skull icon by itself.
ngclient stop button + skull flash:
api/v1/task/32/stop
api/v1/notifications
[Warning-Duplicati.Library.Main.Operation.BackupHandler-CancellationRequested]: Cancellation was requested by user.
ngax stop button + Terminate:
api/v1/task/34/abort
api/v1/notifications
"Message": "A task was canceled."
Release: 2.1.0.120 (Canary) 2025-06-24 has some screenshots and replies to replies.
Since this topic is dedicated to the issue, it’s probably good to do the followups here…
EDIT 1:
On an ngclient backup that takes longer, the Stop button sends “stop” as before, but the skull icon hangs around long enough for me to click it, at which point it sends an “abort”.
EDIT 2:
I was wondering whether “abort” would message as ngax does, but in the end it got the
[Warning-Duplicati.Library.Main.Operation.BackupHandler-CancellationRequested]: Cancellation was requested by user."