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Kiro — Workflows, Safer Untrusted Workspaces, and Enterprise Sign-In Controls
Claude Sonnet 5.5 is now available with experimental support across the Kiro IDE, CLI, Crew, and Web for Pro, Pro+, Pro Max, and Power customers in us-east-1 (IAD) and eu-central-1 (FRA); the Oct 2, 2026 changelog update also ships Workflows, safer untrusted workspaces, and enterprise sign-in controls.