If you've worked with the VRChat SDK in the past, your project may be using an old version of Unity and the VRChat SDK. To use the latest version of the VRChat SDK, you'll first need to update Unity.
- Check which versions of Unity you already have installed on your PC that are VRChat compatible.
- Read our Unity 2022 migration guide to learn how to upgrade your Unity 2019 project to Unity 2022.
- Learn how to perform a minor Unity version upgrade.
Read Setting up the SDK to learn how to create new projects with VRChat's latest Unity SDK.