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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
One change · api

Models changedapi/beta/models

Nearest release: v2.1.296, published an hour after this site recorded the change. Shown because the two are within 24 hours of each other. Nothing here says the release caused the edit.

Recorded here
Lines+12added
Lines−0removed
From line 45 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits22to this page, all time

The whole hunk

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4545 
4646### Headers
4747 
48- `"anthropic-version": optional string`
49 
50 The version of the Claude API you want to use.
51 
52 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
53 
4854- `"anthropic-beta": optional array of AnthropicBeta`
4955 
5056 Optional header to specify the beta version(s) you want to use.
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510516 Model identifier or alias.
511517 
512518### Headers
519 
520- `"anthropic-version": optional string`
521 
522 The version of the Claude API you want to use.
523 
524 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning).
513525 
514526- `"anthropic-beta": optional array of AnthropicBeta`
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