LaunchDevelopersAugust 19, 2026

Claude Code 2.1.236 adds ANTHROPIC_DEFAULT_MODEL variable

The new env var sets the model new sessions start on and persists across restarts, unlike ANTHROPIC_MODEL. Also adds notify_when_idle to cross-session SendMessage and lets macOS sandbox wildcard read-deny rules (e.g. **/.env) override allowed read regions.

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Claude Code 2.1.236 adds ANTHROPIC_DEFAULT_MODEL variable — AIBriefs