Complete the step later and the task closes with it; put it off again and the same task moves, rather than a second one appearing behind you.
Two switches sit under a running checklist’s progress bar, both off until you turn them on. Read steps aloud speaks each step with Apple’s on-device voice, with no microphone and no network. Answer by voice, offered once the first is on, listens for about eight seconds after a step is read for Checked, Fail, Defer, Skip, Back or Repeat, recognizes your words on the device, and saves nothing; on a Number or Text step it takes Checked, Skip, Defer or Back, and the reading itself is typed. The buttons keep working as before; an engine or a crowded cockpit can garble speech, so it does not replace looking at the screen.
A shipped checklist you edit is marked Edited and can be restored to the original; one you write is marked Mine and can be deleted; a Manage checklists menu restores every edited one, or deletes every one of yours, in one go.