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Dec 10 6 tweets 2 min read Read on X
We're releasing more upgrades to Claude Code CLI:

- Async subagents
- Instant compact
- Customer session names
- Usage stats Image
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.
Claude now compacts context exponentially faster.

Compacting takes only seconds so you don’t get interrupted.
You can also now rename sessions to make them easier to find & resume later.

Type /rename to give any previous session a custom name.

We’ve also added keyboard shortcuts to the /resume screen. Hit ‘R’ to rename a session or ‘P’ to preview a session. Image
Lastly, we’ve shipped a new command: /stats

/stats generates a visualization of your daily Claude Code usage and provides data on your sessions, usage streaks, and favorite models.
All features are available in today’s Claude Code build. Run `claude update` for the latest.

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More from @claudeai

Dec 11
Today we’re shipping 3 more updates for Claude Code:

- Claude Code on Android
- Hotkey model switcher
- Context window info in status lines Image
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…
Next, we’re fixing a common papercut and making it easier to switch models mid-prompt via hotkey.

Hit `alt+P` (Windows) or `option+P` (MacOS) to switch model.

Note: Option key combinations on macOS may require configuring your terminal to use Option as a meta/escape key.
Read 5 tweets
Dec 9
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 Image
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.
The Agent SDK now supports sandboxing. You can configure both filesystem and network isolation to give production agents an extra layer of safety.

See the docs for configuration instructions: platform.claude.com/docs/en/agent-…
Read 5 tweets
Nov 24
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. Image
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."
We’re also releasing new product features across our model line-up.

For Claude app users, long conversations no longer hit a wall.

Claude automatically summarizes earlier context as necessary, so you can keep the chat going indefinitely.
Read 8 tweets
Oct 31
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. Image showing various scripts for installing Claude Code.
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
If you’re already using Claude Code, you can migrate to the new installer:

- Close all Claude Code sessions
- Run `claude install` in your terminal

For Alpine and musl/uClibc-based distributions, see our full docs below before updating.
Read 4 tweets
Oct 30
An early look at what people are building with Claude Skills:
Turn content into a personalized, interactive course
Apply custom branding to reports that you generate
Read 7 tweets
Oct 15
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. Chart showing Claude Sonnet 4.5 leads software engineering performance on SWE-bench Verified with 77.2% accuracy, followed by Haiku 4.5 at 73.3%.
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.
Sonnet 4.5 remains the best coding model in the world. Haiku 4.5 gives you near-frontier performance with greater cost-efficiency.

Use them together: Sonnet can build multi-step plans, then orchestrate a team of Haikus to complete subtasks in parallel.
Read 4 tweets

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