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Cloud Changelog
Claude Platform changelog 2025
49 announcements, 2025
All Claude Platform changes · 139 announcements since January 2025 · 10 GA · 10 previews · 2 price changes · 28 deprecations
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December 20252
November 20255
Claude Opus 4.5 launched, with programmatic tool calling and tool search in beta
Search result content blocks on Amazon Bedrock need no beta header
Documentation moves to platform.claude.com/docs, alongside the Claude Console
Claude available in Microsoft Foundry with Azure billing and OAuth
Structured outputs in beta for Claude Sonnet 4.5 and Claude Opus 4.1
October 20253
September 20258
Claude Sonnet 4.5 launched, with memory tool and context editing in beta
Tool helpers in beta for Python and TypeScript SDKs, with a tool runner
Developer offerings renamed under Claude brand; console.anthropic.com redirects from Jan 12, 2026
Console Usage page adds rate limit charts for API usage and caching rates
Code Execution Tool v2 in beta, with Bash commands and file manipulation
August 20259
Higher rate limits for Claude Sonnet 4 1M context; now available on Vertex AI
Usage & Cost API released, plus new Admin API organization info endpoint
Claude Sonnet 3.5 models deprecated, retiring October 28, 2025Deprecation
1M token context window in beta for Claude Sonnet 4 on Claude API and Bedrock
API returns 429 rate_limit_error instead of 529 after sharp usage increases
Search result content blocks generally available on Claude API and Vertex AI
July 20255
June 20253
May 20254
April 20251
March 20251
February 20253
January 20255
Citations added to the API, with plain text and custom content documents
Claude 2, Claude 2.1 and Claude Sonnet 3 models deprecatedDeprecation
Prompt caching reads longest cached prefix automatically; Claude can be prefilled with tools
Prompt caching optimized in the Message Batches API for better cache hit rate