Anthropic Release notes and new features

San Francisco, US · 233 releases · 10 this month

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Anthropic releases

November 2026 digest

3 releases

Claude Platform

Claude API input_transformations adds thinking_mismatch_allowed entries in beta

Under the thinking-binding-controls-2026-08-01 beta header, input_transformations can report thinking_mismatch_allowed for thinking blocks that failed an unenforced prefix check. Logging these entries helps find conversation history edits in production traffic.

BetaSep 14

Claude Code

Claude Code 2.1.271

What's changed Added fast mode in Claude Code Remote sessions (cloud and self-hosted runners): the host's fast-mode setting or /fast typed in the session applies where your organization allows it Added mouse support to the /config panel in fullscreen mode: the wheel scrolls the settings list, a click on a setting's value changes it, and the row under the...

UpdateSep 14

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About and activity

Anthropic, PBC is an American artificial intelligence (AI) public benefit corporation headquartered in San Francisco, California. Its flagship product is Claude, a series of proprietary large language models (LLMs).

Company profile

Releases per month

11Jun 29Jul 31Aug 73Sep 79Oct 10Nov

Official release-notes pages 10

Release-notes page	Site	Feed
Claude apps release notes support.claude.com	support.claude.com	None
Claude Code changelog github.com	github.com	None
Claude Code changelog (docs) code.claude.com	code.claude.com	None
Claude Code releases github.com	github.com	RSS
Claude Platform release notes platform.claude.com	platform.claude.com	None
Claude Agent SDK (Python) releases github.com	github.com	RSS
Claude Agent SDK (TS) releases github.com	github.com	RSS
Python SDK releases github.com	github.com	RSS
System prompts release notes platform.claude.com	platform.claude.com	None
TypeScript SDK releases github.com	github.com	RSS