Unity download archive

From this page you can download the previous versions of Unity for both Unity Personal and Pro (if you have a Pro license, enter in your key when prompted after installation). Please note that there is no backwards compatibility from Unity 5; projects made in 5.x will not open in 4.x. However, Unity 5.x will import and convert 4.x projects. We advise you to back up your project before converting and check the console log for any errors or warnings after importing.

Long Term Support

The LTS stream is for users who wish to continue to develop and ship their games/content and stay on a stable version for an extended period.

The LTS version will not have any new features, API changes or improvements. It will address crashes, regressions, and issues that affect the wider community, such as Enterprise Support customer issues, console SDK/XDK, or any major changes that would prevent a large section of users from shipping their game. Each LTS stream will be supported for a period of two years.

Download LTS Releases