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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
One change · api

Groups changedapi/compliance/groups

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3535 
3636 The version of the Claude API you want to use.
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38 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
38 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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4040- `"x-api-key": optional string`
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135135 The version of the Claude API you want to use.
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137 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
137 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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139139- `"x-api-key": optional string`
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308308 The version of the Claude API you want to use.
309309 
310 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
310 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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312312- `"x-api-key": optional string`
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