Claude Code v2.1.84

March 25, 2026

Summary

- Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-referencepowershell-tool - Added ANTHROPICDEFAULT{OPUS,SONNET,HAIKU}MODELSUPPORTS env v...

Release Notes

- Added PowerShell tool for Windows as an opt-in preview. Learn more at https://code.claude.com/docs/en/tools-referencepowershell-tool - Added ANTHROPICDEFAULT{OPUS,SONNET,HAIKU}MODELSUPPORTS env vars to override effort/thinking capability detection for pinned default models for 3p (Bedrock, Vertex, Foundry), and MODELNAME/DESCRIPTION to customi

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Other Recent Claude Code Releases

• v2.1.158 (May 30, 2026)
• v2.1.157 (May 29, 2026)
• v2.1.156 (May 28, 2026)
• v2.1.154 (May 28, 2026)
• v2.1.153 (May 27, 2026)

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