Anthropic Python SDK v1.6.0

Anthropic Python SDK releases published Anthropic Python SDK v1.6.0. This automated release-watch entry was generated from the project's official GitHub release feed and is kept separate from human-reviewed editorial analysis. Release notes: 1.6.0 (2026-09-15) Full Changelog: v1.5.0...v1.6.0 Features api: add auto mode tool permissions for Managed Agents ( 909d92f ) api: add compaction parameter and signed compaction blocks (beta) ( 8689179 ) api: add enum types for workspace data-residency geo fields ( 3dc6dbf ) api: add thinking mismatch allowed entries to input transformations (beta) ( 14d1792 ) api: add url sources to the web fetch tool ( 4ba7115 ) api: add workspace id parameter to user profiles methods ( 1c359b2 ) client: support async credential token providers ( 95e93f7 ) Bug Fixes api: mark usage iteration model as nullable ( 520d000 ) api: use one input transformation type for message and delta event ( ae86d7d ) client: honor Retry-After values above 60 seconds ( 2d03ba2 ) client: ignore invalid Retry-After values and validate maxRetries ( 909d92f ) client: retry connection errors in the async client and stop…

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• Check compatibility, migration, and security notes against your current agent stack.
• Run focused regression tests before production rollout.