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Sweep 28 Aug 2026 · 00:00Z Build v2.1.250 478 read Stable v2.1.236 Latest v2.1.250 Next v2.1.251 Feeds RSS JSON llms.txt
Reading a new release v2.1.251 Analysing changes · 2/5 Deeper second pass · 0/5 agents 427 findings $12.75 so far

DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

One change

Resources

api/beta/sessions/resources

first seen The page's own history The capture it came from

Nearest release: v2.1.238, published under 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.

api/beta/sessions/resources Changed · +15 / -5 lines

from line 23
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
from line 69
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 185
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
from line 231
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 422
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
from line 468
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 638
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
from line 684
 
     - `"user-profiles-2026-03-24"`
 
+    - `"user-profiles-2026-08-18"`
+
     - `"advisor-tool-2026-03-01"`
 
     - `"managed-agents-2026-04-01"`
from line 864
 
   - `string`
 
-  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 30 more`
+  - `"message-batches-2024-09-24" or "prompt-caching-2024-07-31" or "computer-use-2024-10-22" or 31 more`
 
     - `"message-batches-2024-09-24"`
from line 909
     - `"output-300k-2026-03-24"`
 
     - `"user-profiles-2026-03-24"`
+
+    - `"user-profiles-2026-08-18"`
 
     - `"advisor-tool-2026-03-01"`