Anthropic releases
Anthropic news, Claude releases and SDK updates. New features, breaking changes, security advisories and deprecations - each summarised in plain English and updated continuously.
Tracking 125 Anthropic releases · Updated
- Claude Code Releases sdkaigaengineer ·
Anthropic Claude Code v2.1.170: Fable 5, Session Fixes
Anthropic has released Claude Code version 2.1.170, introducing the new Mythos-class model Claude Fable 5, now safe for general use and exceeding previous model capabilities. This update also resolves an issue where sessions and transcripts were not saved or retrievable via `--resume` when launched from specific terminal environments. This patch is available now for all users.
feature patch - Claude Platform Release Notes aigapreviewdeprecation ·
Claude Platform Updates: Opus 4.8, Mid-conversation System Messages, and Tooling
Anthropic has launched Claude Opus 4.8, their most capable generally available model, featuring a 1M token context window and enhanced reasoning capabilities. The release also introduces mid-conversation system messages and publicly documents the `stop_details` field for refusal responses, benefiting developers integrating Claude into applications. Opus 4.8 is now available via Claude API, Amazon Bedrock, and Vertex AI.
feature patch - Claude Release Notes aigaengineer ·
Claude Opus 4.8 released with improved coding and reasoning
Anthropic has launched Claude Opus 4.8, an upgraded version of its powerful language model. This new iteration demonstrates enhanced capabilities in coding, agentic tasks, reasoning, and practical knowledge work compared to its predecessor, Opus 4.7. The update is available now and offers significant improvements for users engaged in complex problem-solving and development tasks.
feature patch - Claude Release Notes aigaengineer ·
Claude Opus 4.7 Generally Available
Anthropic's Claude Opus 4.7 model is now generally available, offering enhanced capabilities in software engineering and complex coding tasks. It also features improved vision for higher resolution image analysis. This update is relevant for developers and users working with advanced AI coding and visual processing.
feature announcement - Claude Release Notes aigaengineer ·
Claude Cowork now generally available on desktop
Claude Cowork is now generally available for macOS and Windows via the Claude Desktop app. This release expands functionality with new capabilities in the Analytics API for engagement and adoption data, usage analytics for Team and Enterprise plans, and OpenTelemetry support for monitoring activity. These updates are available now and cater to users of Claude Enterprise.
feature announcement