You'll noticeTier: how much it should matter to you
1Useful: my rating, 1 to 5
1Signal: worth watching, 1 to 5
AgentsArea: what it touches
ImprovementsKind: in v2.1.315,
ImprovementsSection of the release
What
The SDK is the toolkit for building your own programs on top of Claude Code. Using sessionStore together with persistSession: false produces an error. That error now advises passing CLAUDE_CONFIG_DIR in the environment, pointing at a new private folder, and deleting that folder afterwards. It used to suggest CLAUDE_CONFIG_DIR=/tmp.
Why
On a machine shared with other people, /tmp is open to every user, so following the old advice was unsafe.
