OFFICIAL SOURCE · AI-ASSISTED BRIEF
Anthropic Releases API Version 2026-10-21 With Breaking Changes
Source publication · YYSI publication
Anthropic published API version 2026-10-21, which the vendor says is available on the Claude API, Claude Platform on AWS, Claude Models on Google Cloud, Microsoft Foundry, and on Amazon Bedrock for Claude 4.7 and later models. The release removes the temperature, top_p, and top_k request parameters, returning 400 errors when sent, and changes several Admin API and Claude Enterprise Analytics API response fields.
Source & context
platform.claude.com · Read the original announcement ↗
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