Sweep 22 Sep 2026 · 17:19Z Build v2.1.280 501 read Stable v2.1.267 Latest v2.1.280 Next v2.1.280 Feeds RSS JSON llms.txt Unofficial
One change · api

List Session Thread Events changed

api/beta/sessions/threads/events/list

Nearest release: v2.1.258, 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−2removed
From line 30 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits11to this page, all time

The whole hunk

from line 30, old and new numbered
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lines
from line 30
3030 
3131 - `string`
3232 
33 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 38 more`
33 - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 41 more`
3434 
3535 - `"message-batches-2024-09-24"`
3636 
from line 114
114114 
115115 - `"ce-user-management-2026-07-13"`
116116 
117 - `"mid-conversation-output-config-2026-07-01"`
118 
119 - `"thinking-binding-controls-2026-08-01"`
120 
121 - `"mid-conversation-system-clear-at-2026-08-21"`
122 
117123## Returns
118124 
119125- `data: optional array of BetaManagedAgentsSessionEvent`
from line 1592
15861592 
15871593 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
15881594 
1589 - `"claude-sonnet-5" or "claude-fable-5" or "claude-opus-5" or 10 more`
1595 - `"claude-fable-5-1" or "claude-sonnet-5" or "claude-fable-5" or 11 more`
15901596 
15911597 The model that will power your agent.
15921598 
15931599 See [models](https://docs.anthropic.com/en/docs/models-overview) for additional details and options.
1600 
1601 - `"claude-fable-5-1"`
1602 
1603 Frontier intelligence for ambitious tasks across coding, scientific discovery, and enterprise workflows
15941604 
15951605 - `"claude-sonnet-5"`
15961606