{"schema_version":"kingy-change-evidence-v1","event":{"id":"ct-452ad604e4b7ca9ca73ec3c5","vendor":"Anthropic","category":"deprecation","type":"documented_source_change","title":"Claude model deprecations documentation changed","source_id":"anthropic-deprecations","source_url":"https://platform.claude.com/docs/en/about-claude/model-deprecations.md","observed_at":"2026-10-21T20:55:11Z","last_unchanged_at":"2026-10-21T18:50:10Z","before_snapshot":"snap-0500ca431ebc75e553cae3cc6585","after_snapshot":"snap-3763bc2941c4c855724f38edb76a","before_hash":"fb53cf4635688718bf50ae5878acc880e24be8b60b7276bbc5934f5397fb3d47","after_hash":"ce0d97cc92ff8004f0a0ec16016520f48d1042dea39c4ee51511deb86158ecab","before_excerpt":"* **Legacy:** The model will no longer receive updates and may be deprecated in the future. * **Retired:** The model is no longer available for use. Requests to retired models will fail. For specific instructions on migrating to the latest Claude models, see the [Migration guide](https://platform.claude.com/docs/en/about-claude/models/migration-guide). To help identify usage of deprecated models, customers can access an audit of their API usage. Follow these steps: This audit will help you locate any instances where your application is still using deprecated models, allowing you to prioritize updates to newer models before …","after_excerpt":"* **Legacy:** The model will no longer receive updates and might be deprecated in the future. * **Retired:** The model is no longer available for use. Requests to retired models fail. For specific instructions on migrating to the latest Claude models, see [Migration guides](https://platform.claude.com/docs/en/about-claude/models/migration-guide). To help identify usage of deprecated models, you can access an audit of your API usage. Follow these steps: This audit helps you locate any instances where your application is still using deprecated models, allowing you to prioritize updates to newer models before the retirement date. …","status":"published","scope":"Published documentation; runtime behavior and legal interpretation not established.","before_capture":{"http_status":200,"resolved_url":"https://platform.claude.com/docs/en/about-claude/model-deprecations.md","etag":"","last_modified":"","response_date":"Wed, 21 Oct 2026 18:50:10 GMT","source_id":"anthropic-deprecations","source_url":"https://platform.claude.com/docs/en/about-claude/model-deprecations.md","captured_at":"2026-10-21T18:50:10Z","raw_sha256":"fb53cf4635688718bf50ae5878acc880e24be8b60b7276bbc5934f5397fb3d47","normalized_sha256":"151a42cc4c817ea64899142fcd4bbf28adf03f729a184cf48f92df50cea0fd9a","collector_version":"1.0.0","normalizer_version":"1.1","locale":"en-US","collection_region":"existing hosting; account-independent public request","id":"snap-0500ca431ebc75e553cae3cc6585"},"after_capture":{"http_status":200,"resolved_url":"https://platform.claude.com/docs/en/about-claude/model-deprecations.md","etag":"","last_modified":"","response_date":"Wed, 21 Oct 2026 20:55:11 GMT","source_id":"anthropic-deprecations","source_url":"https://platform.claude.com/docs/en/about-claude/model-deprecations.md","captured_at":"2026-10-21T20:55:11Z","raw_sha256":"ce0d97cc92ff8004f0a0ec16016520f48d1042dea39c4ee51511deb86158ecab","normalized_sha256":"9a003ff0d95ee0f429bc1cef522c39a28e511af95cc209cc41d01507e5111e71","collector_version":"1.0.0","normalizer_version":"1.1","locale":"en-US","collection_region":"existing hosting; account-independent public request","id":"snap-3763bc2941c4c855724f38edb76a"},"display_normalizer_version":"1.1","display_before_sha256":"151a42cc4c817ea64899142fcd4bbf28adf03f729a184cf48f92df50cea0fd9a","display_after_sha256":"9a003ff0d95ee0f429bc1cef522c39a28e511af95cc209cc41d01507e5111e71"},"content_scope":"Changed excerpts and retained capture metadata; complete raw responses archived privately"}