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Sweep 06 Nov 2026 · 01:32Z Build v2.1.319 537 read Stable v2.1.311 Latest v2.1.319 Next v2.1.319 Feeds RSS JSON llms.txt llms-full.txt Unofficial
HomeDocsClaude Developer Platform 30 Oct 2026
One change · api

Create a Message Batch changedapi/beta/messages/batches/create

Nearest release: v2.1.315, published under an hour 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+13added
Lines−3removed
From line 135 where the diff opens
First seen 14 Aug 2026 this site's first read of the page
Recorded edits30to this page, all time

The whole hunk

from line 135, old and new numbered
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from line 135
135135 
136136 - `"analytics-usage-cost-2026-08-24"`
137137 
138 - `"experimental-claude-tag-2026-10-21"`
139 
138140- `"anthropic-user-profile-id": optional string`
139141 
140142 The user profile ID to attribute the requests in this batch to. Use when acting on behalf of a party other than your organization. Applies to every request in the batch; an individual request whose `user_profile_id` body field conflicts with this header is errored.
from line 1056
10541056 
10551057 - `BetaEncryptedCodeExecutionResultBlockParam object`
10561058 
1057 Code execution result with encrypted stdout for PFC + web_search results.
1059 The output and exit code of Python code that Claude ran with the code execution tool, with standard output in encrypted form, sent back in a later request.
10581060 
10591061 - `type: "encrypted_code_execution_result"`
10601062 
from line 1592
15901592 
15911593 - `BetaCodeExecutionTool20260120 object`
15921594 
1593 Code execution tool with REPL state persistence (daemon mode + gVisor checkpoint).
1595 A `tools` entry for the code execution tool, version `code_execution_20260120`. It adds REPL state persistence to version `code_execution_20250825`.
15941596 
1597 REPL state persistence applies with programmatic tool calling. With it, the Python interpreter state, such as variable bindings, persists across requests that reuse the container.
1598 
1599 See the [code execution tool guide](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool?sdk_languages=http#tool-versions) to learn what each tool version adds.
1600 
15951601 - `type: "code_execution_20260120"`
15961602 
15971603 - `name: "code_execution"`
from line 4244
42384244 
42394245 - `BetaCodeExecutionTool20260120 object`
42404246 
4241 Code execution tool with REPL state persistence (daemon mode + gVisor checkpoint).
4247 A `tools` entry for the code execution tool, version `code_execution_20260120`. It adds REPL state persistence to version `code_execution_20250825`.
4248 
4249 REPL state persistence applies with programmatic tool calling. With it, the Python interpreter state, such as variable bindings, persists across requests that reuse the container.
4250 
4251 See the [code execution tool guide](https://platform.claude.com/docs/en/agents-and-tools/tool-use/code-execution-tool?sdk_languages=http#tool-versions) to learn what each tool version adds.
42424252 
42434253 - `BetaCodeExecutionTool20260521 object`
42444254 
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