List Events changedapi/beta/sessions/events/list
Nearest release: v2.1.301, published 11 hours before this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.
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Lines−1removed
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145
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First seen
14 Aug 2026
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Recorded edits24to this page, all time
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146146- `"anthropic-version": optional string`
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148 The version of the Claude API you want to use.
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150 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
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148152- `"anthropic-beta": optional array of AnthropicBeta`
149153
150 Optional header to specify the beta version(s) you want to use.
154 This endpoint is in beta: requests must send `managed-agents-2026-04-01` in this header.
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152156 - `string`
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