Create Session changedapi/beta/sessions/create
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.
Recorded here
Lines+5added
Lines−1removed
From line
13
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
from line 13, old and new numbered
/
from line 13
1313
1414- `"anthropic-version": optional string`
1515
16 The version of the Claude API you want to use.
17
18 Read more about versioning and our version history [here](https://platform.claude.com/docs/en/api/versioning?sdk_languages=http).
19
1620- `"anthropic-beta": optional array of AnthropicBeta`
1721
18 Optional header to specify the beta version(s) you want to use.
22 This endpoint is in beta: requests must send `managed-agents-2026-04-01` in this header.
1923
2024 - `string`
2125
No line in this hunk matches that.