Under the hoodTier: how much it should matter to you
2Useful: my rating, 1 to 5
2Signal: worth watching, 1 to 5
Environment VariablesArea: what it touches
Internal ChangesKind: in v2.1.228,
Internal ChangesSection of the release
What
Several hand-written environment variable readers were replaced by typed accessors. CLAUDE_CODE_MAX_TOOL_USE_CONCURRENCY still defaults to 10 and is now declared with a minimum of 1, so a non-positive value falls back to the default as before.
Details
The project UUID reader no longer trims its own value, and the Datadog flush interval reader no longer parses the raw string.
A messaging token string variable was added to the same registry module, next to the existing messaging socket variable.