Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Session StateArea: what it touches
Internal ChangesKind: in v2.1.227,
Internal ChangesSection of the release
What
Session state is now built by a factory with a nested project group, and many long-lived caches (git availability, plugin agents, ripgrep availability and file counts, footer-link regexes, team-artifact scanning, temp directory resolution, marketplace loads, messaging socket state) became classes with an explicit reset. Per-session state is cleared as a unit rather than cache by cache; behaviour is meant to be unchanged.
Evidence
project: { originalCwd: e, projectRoot: e, cwd: e },
Strings lifted out of the shipped bundle, so the claim above can be checked against them.