Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
4Signal: worth watching, 1 to 5
Session StateArea: what it touches
Internal ChangesKind: in v2.1.229,
What probably matters to youSection of the release
What
A large refactor across config writing, hooks, the status line, file suggestions, notifications and MCP elicitation: each now receives the session, its project root and cwd, or a storage handle as an argument instead of reading ambient globals, and the remaining shared state sits behind accessor objects. Groundwork for running more than one session correctly in a process.
Details
Covers the skills registry, teleport info, cached CLAUDE.md, sticky betas and cron tasks.
A root session now carries a host object built by a factory.
Evidence
backgroundHousekeeping
Strings lifted out of the shipped bundle, so the claim above can be checked against them.