Summary
The release adds ANTHROPIC_DEFAULT_MODEL for new sessions and a one-shot notify_when_idle option for cross-session SendMessage on macOS and Linux. It also tightens macOS sandbox deny rules, improves auto-mode command review, and adds screen-reader support for transcript events in VS Code.
Why it matters
The update improves repeatability, coordination, security, and accessibility for terminal-based coding-agent workflows.
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