Under the hoodTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
Auto ModeArea: what it touches
Internal ChangesKind: in v2.1.278,
Internal ChangesSection of the release
What
Claude Code's internal per-session state object gained new tracking for the auto-mode server classifier fallback:
which inference gateway was observed for the session
whether a fallback choice was made when the server-side classifier is unavailable, and what that choice was
a one-shot flag for announcing that fallback to the user (so the announcement only happens once)
whether the third-party server classifier was refused for this session
Why
This gives the new server-classifier fallback and billing-notice features a place to remember what's already happened in a session, so users aren't shown the same fallback notice repeatedly or asked to re-decide something already settled.