Feature sets are groups of packagesPackages are collections of assets to be shared and re-used in Unity. The Unity Package Manager (UPM) can display, add, and remove packages from your project. These packages are native to the Unity Package Manager and provide a fundamental method of delivering Unity functionality. However, the Unity Package Manager can also display Asset Store packages that you downloaded from the Asset Store. More info
See in Glossary that enable you to achieve specific results in Unity. For example, the 2D feature set provides all the functionality you need to create 2D games for various art styles.
All the packages in a feature set are compatible with each other for that version of the feature set. You can install feature sets using the Package Manager.
The following feature sets are available in this release of Unity:
For information about how to find what a specific feature set contains, see Features (detail) view.
For information about how to install feature sets in the Package Manager, see Installing a feature set.