You'll noticeTier: how much it should matter to you
2Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SpinnerArea: what it touches
ImprovementsKind: in v2.1.318,
ImprovementsSection of the release
What
The spinner is the animated indicator shown while Claude is working. It can now display a waiting line as its message, as long as no other message has taken its place. While that line is set, Claude Code treats the response as being held.
Why
In practice you may see a new status message in the spinner when Claude Code is waiting on something.