ClaudeCodeChanges

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Claude docs changes for January 30th, 2026 [diff]

Executive Summary

  • New version 2.1.25: Fixed beta header validation for Bedrock/Vertex gateway users
  • Structured outputs graduated from beta to GA with output_format renamed to output_config.format across all SDKs
  • Analytics documentation rewritten for Teams/Enterprise dashboards with GitHub contribution metrics

New Claude Code versions

2.1.25

Major bug fixes

  • Fixed beta header validation error for gateway users on Bedrock and Vertex, ensuring CLAUDE_CODE_DISABLE_EXPERIMENTAL_BETAS=1 avoids the error

Claude Code changes

Changed documents

Analytics [Source]

  • Complete rewrite of analytics documentation with new structure for Teams/Enterprise and API customers. [lines 1-10] [Source]
  • Added documentation for Teams and Enterprise dashboard including usage metrics, contribution metrics with GitHub integration, leaderboard, and data export capabilities. [lines 12-17] [Source]
  • Added detailed setup instructions for enabling contribution metrics through GitHub app integration. [lines 19-51] [Source]

MCP [Source]

  • Added Granola MCP server for AI notepad for meetings. [lines 79-83] [Source]
  • Updated Atlassian transport from SSE to HTTP. [line 183] [Source]
  • Added Smartsheet MCP server for analyzing and managing Smartsheet data. [lines 417-421] [Source]
  • Added Supabase MCP server for managing databases, authentication, and storage. [lines 439-443] [Source]

Settings [Source]

  • Added spinnerVerbs configuration option to customize action verbs shown in spinner and turn duration messages. [line 163] [Source]

Setup [Source]

  • Updated Windows operating system requirements to specify Windows 10 1809+ / Windows Server 2019+. [line 3] [Source]

API changes

New Documents

Agent SDK - Stream responses in real-time [Source]

New comprehensive documentation for streaming responses in the Agent SDK. Covers enabling streaming output with include_partial_messages / includePartialMessages, understanding StreamEvent message types, streaming text responses, streaming tool calls, building streaming UIs, and known limitations with extended thinking and structured outputs. Includes detailed examples for handling content_block_delta events, tracking tool execution progress, and creating cohesive streaming interfaces.

Changed documents

Remote MCP servers [Source]

Beta [Source]

  • Removed structured outputs beta header requirement and updated parameter name from output_format to output_config.format. [throughout file]

Beta - Messages [Source]

  • Updated structured outputs parameter from output_format to output_config.format in examples. [throughout file]

Beta - Messages - Batches [Source]

  • Updated structured outputs parameter references from output_format to output_config.format. [throughout file]

Beta - Messages - Batches - Create [Source]

  • Updated structured outputs parameter from output_format to output_config.format throughout API reference. [throughout file]

Beta - Messages - Batches - Results [Source]

  • Updated structured outputs parameter references in API response documentation. [throughout file]

Beta - Messages - Count tokens [Source]

  • Updated structured outputs parameter from output_format to output_config.format. [throughout file]

Beta - Messages - Create [Source]

  • Added output_config parameter with nested format object for structured outputs configuration. [lines 1816-1832] [Source]
  • Added strict parameter to Tool objects for schema validation guarantee. [lines 2244-2246] [Source]
  • Added request_too_large error code to WebSearchToolRequestError. [line 1655] [Source]

Completions - Create [Source]

  • Updated structured outputs parameter references from output_format to output_config.format. [throughout file]

Go - Beta [Source]

  • Updated Go SDK examples to use new output_config.format parameter instead of output_format. [throughout file]

Go - Beta - Messages [Source]

  • Updated Go SDK structured outputs examples with new parameter structure. [throughout file]

Go - Beta - Messages - Batches [Source]

  • Updated Go SDK batch API examples with new structured outputs parameter. [throughout file]

Go - Beta - Messages - Batches - Create [Source]

  • Updated structured outputs parameter in Go SDK batch create examples. [throughout file]

Go - Beta - Messages - Batches - Results [Source]

  • Updated Go SDK batch results documentation with new parameter structure. [throughout file]

Go - Beta - Messages - Count tokens [Source]

  • Updated Go SDK token counting examples with new structured outputs parameter. [throughout file]

Go - Beta - Messages - Create [Source]

  • Updated Go SDK message creation examples with output_config.format parameter. [throughout file]

Go - Messages [Source]

  • Updated Go SDK messages documentation with new structured outputs parameter. [throughout file]

Go - Messages - Batches [Source]

  • Updated Go SDK batch messages with new parameter structure. [throughout file]

Go - Messages - Batches - Create [Source]

Go - Messages - Batches - Results [Source]

Go - Messages - Count tokens [Source]

Go - Messages - Create [Source]

  • Updated Go SDK message creation with new structured outputs parameter. [throughout file]

Java - Beta [Source]

  • Updated Java SDK examples with new output_config.format parameter. [throughout file]

Java - Beta - Messages [Source]

  • Updated Java SDK messages examples with new parameter structure. [throughout file]

Java - Beta - Messages - Batches [Source]

Java - Beta - Messages - Batches - Create [Source]

Java - Beta - Messages - Batches - Results [Source]

Java - Beta - Messages - Count tokens [Source]

Java - Beta - Messages - Create [Source]

  • Updated Java SDK message creation examples with new parameter. [throughout file]

Java - Messages [Source]

Java - Messages - Batches [Source]

Java - Messages - Batches - Create [Source]

Java - Messages - Batches - Results [Source]

Java - Messages - Count tokens [Source]

Java - Messages - Create [Source]

  • Updated Java SDK message creation with new structured outputs parameter. [throughout file]

Messages [Source]

  • Updated Messages API examples with new output_config.format parameter. [throughout file]

Messages - Batches [Source]

  • Updated batch API examples with new parameter structure. [throughout file]

Messages - Batches - Create [Source]

  • Updated batch create documentation with new structured outputs parameter. [throughout file]

Messages - Batches - Results [Source]

Messages - Count tokens [Source]

  • Updated token counting documentation with new parameter. [throughout file]

Messages - Create [Source]

  • Added output_config parameter with nested format object for structured outputs configuration. [lines 1816-1832] [Source]
  • Added strict parameter to Tool objects for guaranteed schema validation on tool names and inputs. [lines 2244-2246] [Source]
  • Added request_too_large error code to WebSearchToolRequestError enum. [line 1655] [Source]

Python - Beta [Source]

  • Updated Python SDK examples to use output_config.format and removed beta header requirements. [throughout file]

Python - Beta - Messages [Source]

  • Updated Python SDK messages examples with new parameter structure. [throughout file]

Python - Beta - Messages - Batches [Source]

Python - Beta - Messages - Batches - Create [Source]

Python - Beta - Messages - Batches - Results [Source]

Python - Beta - Messages - Count tokens [Source]

Python - Beta - Messages - Create [Source]

  • Updated Python SDK message creation examples with new parameter and moved from client.beta.messages to client.messages. [throughout file]

Python - Completions [Source]

Python - Completions - Create [Source]

Python - Messages [Source]

  • Updated Python SDK messages documentation with new structured outputs parameter. [throughout file]

Python - Messages - Batches [Source]

Python - Messages - Batches - Create [Source]

Python - Messages - Batches - Results [Source]

Python - Messages - Count tokens [Source]

Python - Messages - Create [Source]

  • Updated Python SDK message creation with new structured outputs parameter. [throughout file]

Ruby - Beta [Source]

  • Updated Ruby SDK examples with new output_config.format parameter. [throughout file]

Ruby - Beta - Messages [Source]

Ruby - Beta - Messages - Batches [Source]

Ruby - Beta - Messages - Batches - Create [Source]

Ruby - Beta - Messages - Batches - Results [Source]

Ruby - Beta - Messages - Count tokens [Source]

Ruby - Beta - Messages - Create [Source]

  • Updated Ruby SDK message creation examples with new parameter. [throughout file]

Ruby - Messages [Source]

Ruby - Messages - Batches [Source]

Ruby - Messages - Batches - Create [Source]

Ruby - Messages - Batches - Results [Source]

Ruby - Messages - Count tokens [Source]

Ruby - Messages - Create [Source]

  • Updated Ruby SDK message creation with new structured outputs parameter. [throughout file]

TypeScript - Beta [Source]

  • Updated TypeScript SDK examples with new output_config.format parameter. [throughout file]

TypeScript - Beta - Files - Download [Source]

TypeScript - Beta - Messages [Source]

TypeScript - Beta - Messages - Batches [Source]

TypeScript - Beta - Messages - Batches - Create [Source]

TypeScript - Beta - Messages - Batches - Results [Source]

TypeScript - Beta - Messages - Count tokens [Source]

TypeScript - Beta - Messages - Create [Source]

  • Updated TypeScript SDK message creation examples with new parameter. [throughout file]

TypeScript - Messages [Source]

TypeScript - Messages - Batches [Source]

TypeScript - Messages - Batches - Create [Source]

TypeScript - Messages - Batches - Results [Source]

TypeScript - Messages - Count tokens [Source]

TypeScript - Messages - Create [Source]

  • Updated TypeScript SDK message creation with new structured outputs parameter. [throughout file]

Citations [Source]

  • Updated incompatibility note to reference new output_config.format parameter instead of output_format. [line 125] [Source]

Extended thinking [Source]

  • Updated sales team contact link from obfuscated email to direct mailto link. [line 98] [Source]

Files [Source]

  • Updated contact link for higher rate limits from obfuscated email to direct mailto link. [line 284] [Source]

Overview [Source]

  • Updated structured outputs availability to include Amazon Bedrock (Beta) and changed from "Claude API (Beta)" to "Claude API" to reflect GA status. [line 23] [Source]
  • Removed Opus 4.1 from supported models list for structured outputs. [line 23] [Source]

Structured outputs [Source]

  • Changed from beta to GA status - removed beta header requirement and updated parameter from output_format to output_config.format. [lines 1-13] [Source]
  • Added migration note explaining that old beta header and parameter will continue working during transition period. [lines 14-15] [Source]
  • Updated all examples throughout the document to use new parameter structure. [throughout file]
  • Updated Python SDK examples to use client.messages instead of client.beta.messages. [lines 129-162] [Source]
  • Removed Opus 4.1 from supported models. [line 11] [Source]

Release notes - Overview [Source]

  • Added January 29, 2026 release note announcing structured outputs GA with expanded schema support, improved grammar compilation latency, and simplified integration. [lines 9-11] [Source]