Microsoft has officially released Windows 11 and the rollout will be phased.

Microsoft began rolling out Windows 11 on Tuesday, starting with computers running Windows 10 and computers that came with a pre-installed version of Windows. Microsoft said users will be notified about eligibility in the coming months, and that it aims to complete the rollout sometime in mid-2022.

Windows 11 introduces a number of changes to Microsoft’s core operating system, including a new Start menu and a few other notable UI changes. It’s not as much of an upgrade as Windows 10 was when it first released, but Microsoft is aiming to deliver several new tools and features focused on better multitasking, support for Android apps, and smoother integration with Microsoft Teams.

Users can check their system’s compatibility with Windows 11 on Microsoft’s website. You can also check out the full Windows 11 requirements to see how your system performs, but it’s important to note that you’ll need Trusted Platform Module version 2.0 installed on your system in order to install it. You’ll also need a graphics card that supports DirectX 12 or later.