Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Headless ModeArea: what it touches
Internal ChangesKind: in v2.1.300,
Internal ChangesSection of the release
What
A headless session is one where Claude Code runs without its interactive screen, for example when driven by another program. A turn is one exchange between you and Claude. In these sessions, Claude Code now runs a check on the program's memory use after every turn. The check is told whether the session is busy, how many turns have run and how many messages there are.
The summary Claude Code records when such a run ends also carries some extra fields.
Why
This adds tracking of how much memory headless and SDK sessions use as they go along.
