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Sweep 22 Oct 2026 · 04:32Z Build v2.1.308 527 read Stable v2.1.308 Latest v2.1.308 Next v2.1.308 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 12 Oct 2026
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1818 The version of the Claude API you want to use.
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20 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
20 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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2222- `"anthropic-beta": optional array of AnthropicBeta`
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273273 The version of the Claude API you want to use.
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275 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
275 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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507507 The version of the Claude API you want to use.
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509 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
509 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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647647 The version of the Claude API you want to use.
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649 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
649 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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870870 The version of the Claude API you want to use.
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872 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
872 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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