Messages changedapi/compliance/apps/sessions/remote/messages
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7777 The version of the Claude API you want to use.
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79 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
79 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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8181- `"x-api-key": optional string`
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