Claude Code 2.1.236
By Steven Van ·
Added ANTHROPIC_DEFAULT_MODEL environment variable: sets the model new sessions start on, while a /model pick still overrides it and persists across…
Claude Code 2.1.236 adds a new ANTHROPIC_DEFAULT_MODEL environment variable, which sets the model new sessions start on. Picking a model with /model still overrides it and, unlike ANTHROPIC_MODEL, that choice persists across restarts. The release also adds an opt-in, one-shot notify_when_idle option to cross-session SendMessage, so one Claude Code session on a machine can ask another to send a single notice when it next goes idle, without polling, on macOS and Linux.
- On macOS, sandbox wildcard read-deny rules (for example **/.env) now take precedence inside allowed read regions, cover the contents of matched directories, and can't be bypassed by renaming the denied file.
- Fixed clipboard copy, background housekeeping, background sessions, and local MCP logs breaking after the directory a session had switched into was removed, a regression since 2.1.229.
- Fixed the fullscreen renderer failing permanently after a single failed start: it now falls back to the classic renderer instead of exiting on every later launch.
- Fixed the /model picker rendering taller than the terminal: it now shows only as many models as fit the window, with the rest reachable by scrolling.
- Fixed SendMessage calls being rejected when a malformed closing tag left the message text inside the summary field.
Full details are in the changelog.
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