# Install Timeline

Timeline is a Package. It is automatically installed with the Unity Editor. You can update and reinstall the Timeline package with the Packages window in the Unity Editor. Consult the [Packages window documentation](https://docs.unity3d.com/Manual/upm-ui.html) for more information.

The Timeline package also contains sample projects that demonstrate many Timeline features. For information on how to install samples, consult the [Timeline Samples section](samp-overview.md).

## Requirements

This version of Timeline is compatible with the following versions of the Unity Editor:

* 2021.3 and later