Claude Release Notes

Cowork research preview expanded to Pro plans

Cowork is now available to Pro plan users on Claude Desktop (macOS only).

Claude Code access added to Team plan Standard seats

We’re now including Claude Code access with every Team plan standard seat. Refer to this article for more information: Purchasing and managing seats on Team plans.

Opus 4 and 4.1 deprecated from Claude and Claude Code

We’ve removed Claude Opus 4 and 4.1 from the Claude model selector and Claude Code. Refer to this article for further details and recommendations: Adapting to new model personas after deprecations.

Cowork research preview on Claude Desktop (macOS only) for Max plans

Cowork brings Claude Code's agentic capabilities to the Claude desktop app for knowledge work beyond coding. It runs locally on your computer in an isolated VM, enabling direct access to local files and MCP integrations.

Refer to this article to learn more: Getting Started with Cowork.

Health and fitness data on Claude Mobile

Claude can now read and analyze your health and fitness data on iOS and Android. Ask Claude about your activity patterns, workout trends, sleep quality, and more—Claude will provide insights and visualizations using native charts.

Health features are available on Pro and Max plans and currently limited to users in the US. On Android, Health Connect and Android 14 or later are required.

See the following articles for more information:

• Using Claude with iOS Apps

• Using Claude with Android Apps

HIPAA-ready Enterprise plans

We now offer a HIPAA-ready version of Claude that is available for organizations with Enterprise plans that choose to process protected health information (PHI) through Claude.

See HIPAA-Ready Enterprise Plans for more information.

Skills for organizations, partners, and the ecosystem

In October, we introduced skills—a way to teach Claude repeatable workflows tailored to how you work. Skills are now easier to deploy, discover, and build with organization-wide management for Team and Enterprise plans, a directory of partner-built skills, and an open standard (Agent Skills) so skills work across AI platforms.

Claude Opus 4.5 launch

We released our most powerful frontier model to date. Read our blog post for more information: Introducing Claude Opus 4.5.

Claude in Excel beta release

Claude in Excel is now available in beta to all Max, Team, and Enterprise users. We’ve added some additional capabilities, such as support for pivot tables, charts and file uploads, plus a shortcut to quickly open the full Claude app from Excel (ctrl+option+c). We've also made overall improvements to performance, speed, context management, and the general user experience. See Claude in Excel.

Context window compaction

We’ve changed our context window functionality to enable infinite-length conversations (with some exceptions) and significantly reduce length limit errors by summarizing earlier messages when a chat approaches its context limit. Read more here: Understanding Usage and Length Limits.

Claude’s memory on Max and Pro plans

Max plan users can now access Claude’s memory capabilities. This feature will roll out to Pro plans gradually over the next two weeks.

Claude Haiku 4.5 launch

We released our fastest, most cost-efficient model – Claude Haiku 4.5. Our latest small model matches Sonnet 4’s performance on coding, computer use, and agent tasks.

Claude Sonnet 4.5 launch

We released our newest model, Sonnet 4.5. This is the best model in the world for real-world agents, coding, and computer use. Read our blog post here: Claude Sonnet 4.5.

Creating and editing files with Claude for Pro plans and mobile

Pro users can now leverage Claude’s file creation and editing capabilities, and users on all paid plans can access these features on Claude for iOS or Android. See this updated article for more information: Create and edit files with Claude.

Claude’s memory on Enterprise plans

Users on Enterprise plans can leverage memory; Claude can now remember relevant context from your chats and generate a memory summary. Incognito chats give you a way to exclude conversations from Claude’s memory. Refer to the following articles for more information:

• Using Claude’s chat search and memory to build on previous context

• Importing and exporting your memory from Claude

• Using incognito chats

Claude’s memory on Team plans and incognito chats for free, Pro, Max, and Team plans

Claude can now remember relevant context from your chats and will generate a memory summary. Incognito chats give you a way to exclude conversations from Claude’s memory. Refer to the following new articles for more information:

• Using Claude’s chat search and memory to build on previous context

• Importing and exporting your memory from Claude

• Using incognito chats

Creating and editing files with Claude

Claude can now create and edit Excel spreadsheets, PowerPoint slide decks, documents, and PDFs directly in the Claude app. Refer to the following two articles for more information:

• Create and edit files with Claude

• Create and edit files with Claude to eliminate hours of busy work