LaunchDevelopersAugust 19, 2026

Claude Code 2.1.236 adds ANTHROPIC_DEFAULT_MODEL variable

Claude Code 2.1.236 introduces the ANTHROPIC_DEFAULT_MODEL env var, letting users set the model new sessions start on, and adds notify_when_idle for cross-session SendMessage. It also fixes clipboard copy, fullscreen renderer crashes, and sandbox wildcard read-deny rules on macOS.

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