Introducing Code Review, a new feature for Claude Code.

When a PR opens, Claude dispatches a team of agents to hunt for bugs. Agents search for bugs in parallel, verify each bug to reduce false positives, and rank bugs by severity.

You get one high-signal summary comment plus inline flags.

Introducing Cowork and plugin updates that help enterprises customize Claude for better collaboration with every team. Admins can create private plugin marketplaces to distribute them across the org.

A unified "Customize" menu also gives you more control over plugins, skills, and connectors in one place.

Our latest Claude Code hackathon is officially a wrap.

500 builders spent a week exploring what they could do with Opus 4.6 and Claude Code.

Meet the winners: 🥇CrossBeam by Mike Brown

California builders lose months navigating permit corrections.

CrossBeam speeds up California's permitting process by giving builders and municipalities faster tools for code compliance and plan review.

Claude Code on desktop can now preview your running apps, review your code, and handle CI failures and PRs in the background.

Here’s what's new: Server previews: Claude can now start dev servers and preview your running app right in the desktop interface.

It reads console logs, catches errors, and keeps iterating.

This is Claude Sonnet 4.6: our most capable Sonnet model yet.

It’s a full upgrade across coding, computer use, long-context reasoning, agent planning, knowledge work, and design.

It also features a 1M token context window in beta. Sonnet 4.6 has improved on benchmarks across the board.

It approaches Opus-level intelligence at a price point that makes it practical for far more tasks.

Our teams have been building with a 2.5x-faster version of Claude Opus 4.6.

We’re now making it available as an early experiment via Claude Code and our API. Fast mode is more expensive to run. It’s for urgent, high-stakes projects, combining impressive speed with Opus-level intelligence.

Read more: code.claude.com/docs/en/fast-m…

Introducing Claude Opus 4.6. Our smartest model got an upgrade.

Opus 4.6 plans more carefully, sustains agentic tasks for longer, operates reliably in massive codebases, and catches its own mistakes.

It’s also our first Opus-class model with 1M token context in beta. Opus 4.6 is state-of-the-art on several evaluations including agentic coding, multi-discipline reasoning, knowledge work, and agentic search.

We're also shipping new features across Claude in Excel, Claude in PowerPoint, Claude Code, and our API to let Opus 4.6 do even more.

Ads are coming to AI. But not to Claude. Keep thinking.

Your work tools are now interactive in Claude.

Draft Slack messages, visualize ideas as Figma diagrams, or build and see Asana timelines. Search and preview your @box files, then ask Claude about what's inside.

Introducing Cowork: Claude Code for the rest of your work.

Cowork lets you complete non-technical tasks much like how developers use Claude Code. In Cowork, you give Claude access to a folder on your computer. Claude can then read, edit, or create files in that folder.

Try it to create a spreadsheet from a pile of screenshots, or produce a first draft from scattered notes.

Some delightfully specific things people are building with Claude Code lately.

https://x.com/d33v33d0/status/2006221407340867881

Claude in Chrome is now available to all paid plans.

We’ve also shipped an integration with Claude Code. Using the extension, Claude Code can test code directly in the browser to validate its work. Claude can also see client-side errors via console logs.

Try it out by running /chrome in the latest version of Claude Code.

We’ve shipped more updates for Claude Code:

- Syntax highlighting for diffs
- Prompt suggestions
- First-party plugins marketplace
- Shareable guest passes We’ve added syntax highlighting to diffs in Claude Code, making it easier to scan Claude’s proposed changes within the terminal view.

The syntax highlighting engine has improved themes, knows more languages, and is available in our native build.

Today we’re shipping 3 more updates for Claude Code:

- Claude Code on Android
- Hotkey model switcher
- Context window info in status lines You can now run Claude Code tasks from the Claude Android app, in research preview.

Kick off cloud-based tasks from your phone, let Claude run, then pick them up later to review and merge work.

Download Claude for Android: play.google.com/store/apps/det…

We're releasing more upgrades to Claude Code CLI:

- Async subagents
- Instant compact
- Customer session names
- Usage stats Tasks can now spawn async subagents that move to the background and continue working independently, even if the main agent finishes its task and becomes inactive.

This lets subagents handle long-running tasks, great for monitoring logs or waiting for builds.

We’ve shipped three new updates for Claude Agent SDK to make it easier to build custom agents:

- Support for 1M context windows
- Sandboxing
- V2 of our TypeScript interface You can now use the Agent SDK with the 1M context window version of Claude Sonnet 4.5.

Use it to build agents for data-intensive use cases, like processing hundreds of documents or loading entire codebases.

Introducing Claude Opus 4.5: the best model in the world for coding, agents, and computer use.

Opus 4.5 is a step forward in what AI systems can do, and a preview of larger changes to how work gets done. Our engineers have found that Opus 4.5 handles ambiguity and reasons about tradeoffs without hand-holding.

When pointed at a complex, multi-system bug, it figures out the fix.

Overall, Opus 4.5 just "gets it."

Claude Code's native installer is now generally available.

It's simpler, more stable, and doesn't require Node.js. We recommend this as the default installation method for all Claude Code users going forward. What’s improved with the native installer:

- The auto-updater is now more stable: users should run into fewer failed updates and bricked installs
- Claude Code is a single, self-contained executable, and no longer has a Node.js dependency

An early look at what people are building with Claude Skills: Turn content into a personalized, interactive course

https://x.com/apollonator3000/status/1981166676659077504

Introducing Claude Haiku 4.5: our latest small model.

Five months ago, Claude Sonnet 4 was state-of-the-art. Today, Haiku 4.5 matches its coding performance at one-third the cost and more than twice the speed. Haiku 4.5 surpasses Sonnet 4 on computer use tasks, making Claude for Chrome even faster.

In Claude Code, it makes multi-agent projects and rapid prototyping markedly more responsive.

This morning we announced several upgrades to Claude Code.

We also launched two new features for managing context on the Claude Developer Platform.

Here’s what’s new: The Claude Agent SDK gives you access to the same core tools, context management systems, and permissions frameworks that power Claude Code.

Read how devs are building agents with the SDK:
anthropic.com/engineering/bu…