# WSL 3.0: what's new and how to update the Linux subsystem on Windows

> AI Release · @ai_release1 · https://ai-release.net/guides/wsl-3-0-windows_en.html

WSL 3.0 is the new version of Windows Subsystem for Linux, the Microsoft toolkit that runs Linux applications on a Windows machine. The main news in this branch is support for Linux containers, which is a first for the tool.

## TL;DR

- WSL 3.0 is a new branch of Windows Subsystem for Linux published by Microsoft.
- The key new capability is support for Linux containers.
- WSL lets you run Linux applications directly in Windows.
- The update targets users who want Linux tooling and Windows on one machine.
- Containers make it easier to keep Linux workloads separate from the host system.

## What Windows Subsystem for Linux is

Windows Subsystem for Linux is a Microsoft tool that lets you run Linux applications in Windows. You do not need a second computer or a separate Linux machine to work in a Linux environment.

WSL 3.0 is a new branch of that tool. Microsoft presents it as the next version of the subsystem, not a small patch to the previous one.

The practical benefit is simple: Linux apps and Windows apps live on the same desktop. You keep your Windows files, drivers and hardware support, and still get a Linux environment when you need one.

## What is new in WSL 3.0: Linux containers

The headline change in WSL 3.0 is Linux container support. Containers are a standard way to package and run Linux software, and this branch brings them into the subsystem.

Earlier the tool was known for running Linux applications on Windows. WSL 3.0 extends that to Linux containers, and the announcement describes this as a novelty for the tool.

For users this means one environment can serve both everyday Linux apps and container-based workloads. Linux software packaged as a container can be started from the same Windows machine, without a second system.

This feature is the reason the release is described as a new branch rather than a minor update.

## How to update WSL on Windows

The update path is the usual one for WSL, and it is worth doing in order.

```powershell
wsl --version
wsl --update
wsl --list --verbose
```

Checklist:

- [ ] Check which WSL version and state you have right now.
- [ ] Run the update command and let it finish without closing the window.
- [ ] Restart the machine if the update asks for it.
- [ ] Confirm your installed Linux distributions still start.
- [ ] Try a Linux container to confirm the new branch works.

If you are setting up a fresh Windows machine first, a step-by-step guide helps: [How to Install Windows 11 26H2: Step-by-Step Guide with Official ISO](https://ai-release.net/guides/kak-ustanovit-windows-11-26h2-poshagovaya-instruktsiya.html?utm_source=tg&utm_medium=channel&utm_campaign=guide_inline&utm_content=guide_to_guide).

## WSL 3.0 and AI work on Windows

Linux containers matter for AI work because many tools are packaged for Linux. Running them through WSL keeps Windows as your main system while Linux tooling stays available next to it.

If you want to know what Microsoft already built into the system itself, see [Windows with AI: Copilot and neural networks in the system](https://ai-release.net/guides/windows-i-ii.html?utm_source=tg&utm_medium=channel&utm_campaign=guide_inline&utm_content=guide_to_guide). For smaller tools that install straight from the store, [Best free AI apps in Microsoft Store for Windows](https://ai-release.net/guides/luchshie-besplatnye-ii-prilozheniya-v-microsoft-store-p.html?utm_source=tg&utm_medium=channel&utm_campaign=guide_inline&utm_content=guide_to_guide) is a useful companion.

## What to watch after a big Windows update

Large Windows updates can break WSL setups, and the symptoms are usually the same: the subsystem stops starting or a distribution refuses to launch. The fixes are often small and quick.

A list of known issues and repairs is worth keeping at hand: [Windows 11 26H2: common issues after update and how to fix them](https://ai-release.net/guides/windows-11-26h2-chastye-problemy-posle-obnovleniya-i-ka.html?utm_source=tg&utm_medium=channel&utm_campaign=guide_inline&utm_content=guide_to_guide).

If a desktop app built on top of WSL misbehaves, a plugin-style install guide shows how such tools are set up: [DeepSeek Harness Desktop: How to Install and Add Plugins on Windows and Mac](https://ai-release.net/guides/deepseek-harness-desktop-kak-ustanovit-i-podklyuchit-pl.html?utm_source=tg&utm_medium=channel&utm_campaign=guide_inline&utm_content=guide_to_guide).

## FAQ

**What is WSL 3.0?**
It is the new version of Windows Subsystem for Linux published by Microsoft. Its main new feature is support for Linux containers.

**What is the main new feature in WSL 3.0?**
Linux container support. The release is described as a new branch of WSL