Anthropic / update detail

Claude Platform release notes — October 21, 2026

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Anthropic·Oct 21, 2026, 12:00 AMFeatureMay break your integrationAI-assisted summary

Summary

API version 2026-10-21 released; new SDKs (Python 2.0.0, TypeScript 1.0.0, C# 13.0.0, Go 2.0.0, Java 3.0.0, PHP 1.0.0, Ruby 2.0.0) and ant CLI 2.0.0 now default to this version.
SDK and CLI updates introduce breaking changes and switch licensing from MIT to Apache 2.0.
User profiles gain enforcement_status and enforcement_actions fields with a filter to list profiles under restriction or ban.

featurebreakingsource healthy

Official source Last checked Nov 11, 2026, 4:00 PM

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AI-assisted summarysource healthyLast checked Nov 11, 2026, 4:00 PM

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