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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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Work changedapi/beta/environments/work

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Recorded edits17to this page, all time

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2525 
2626 The version of the Claude API you want to use.
2727 
28 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
28 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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3030- `"anthropic-beta": optional array of AnthropicBeta`
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287287 
288288 The version of the Claude API you want to use.
289289 
290 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
290 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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292292- `"anthropic-beta": optional array of AnthropicBeta`
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535535 
536536 The version of the Claude API you want to use.
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538 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
538 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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540540- `"anthropic-beta": optional array of AnthropicBeta`
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790790 
791791 The version of the Claude API you want to use.
792792 
793 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
793 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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795795- `"anthropic-beta": optional array of AnthropicBeta`
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978978 
979979 The version of the Claude API you want to use.
980980 
981 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
981 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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983983- `"anthropic-beta": optional array of AnthropicBeta`
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12481248 
12491249 The version of the Claude API you want to use.
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1251 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
1251 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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12531253- `"anthropic-beta": optional array of AnthropicBeta`
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15011501 
15021502 The version of the Claude API you want to use.
15031503 
1504 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
1504 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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15061506- `"anthropic-beta": optional array of AnthropicBeta`
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17591759 
17601760 The version of the Claude API you want to use.
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1762 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
1762 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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17641764- `"anthropic-beta": optional array of AnthropicBeta`
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