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Changelog · Kiro · AWS

Models: Claude Sonnet 5.5 now available in AWS GovCloud (US): Claude Sonnet 5.5 is available in the Kiro IDE and CLI across both AWS GovCloud (US) Regions.

Published Oct 9, 2026 (). Newer: IDE: Choose When Kiro Uses Workflows (Oct 22, 2026)

Official post ↗ Kiro changelog

Changelog

Models: Claude Sonnet 5.5 now available in AWS GovCloud (US): Claude Sonnet 5.5 is available in the Kiro IDE and CLI across both AWS GovCloud (US) Regions.

No release notes were published for this version.