Waking a background session to send it a new prompt now supports queuing that message so it's delivered once the session next starts, rather than requiring the session to be immediately available. Claude Code also warns if the flags passed for the wake don't match the flags the session was originally started with.
claude attach-style background wake now preserves/queues prompts
Waking a background session can queue your prompt for delivery, and warns if the wake flags differ from the original ones.
Use it nowTier: how much it should matter to you
5Useful: my rating, 1 to 5
3Signal: worth watching, 1 to 5
SessionsArea: what it touches
ImprovementsKind: in v2.1.257,
What probably matters to youSection of the release