You can update an asset package that you got from the Asset StoreA growing library of free and commercial assets created by Unity and members of the community. Offers a wide variety of assets, from textures, models and animations to whole project examples, tutorials and Editor extensions. More info
See in Glossary by using the Package Manager window.
Note: Follow this task to update an asset package from the Asset Store that’s already in your project. Refer to the following resources for other related tasks:
To update an asset package:
Open the Package Manager window and select My Assets from the navigation panel.
An upward-pointing arrow indicator () appears next to any packages that have updates available.
Optional: To view your list with the most recently updated Asset Store packages first, sort the list by Recently updated.
Select the Asset Store package you want to update from the list of packages. The package information appears in the details panel.
Optional: Select the Releases tab to review the changes in the latest versions of the package.
Select the Download update #.# button. Note:
If the download button appears as Download update #.#*, the asterisk (*) means that you have an older version of that package with the same version number in your package cache. The publisher has subsequently published an updated version of the package without changing its version number. Click that download button to get the latest version of the package.
If the downloaded version of your package isn’t compatible with your version of the Unity Editor, a message appears in the details panel and an alternate Update button displays, which lets you download a compatible version of the package.
To update your project with the package you downloaded in the previous step, select Import update #.# to project.
You can update multiple Asset Store packages with one click by using the multiple select feature. For more information, refer to Perform an action on multiple packages or feature sets.
.unitypackage
extension. Asset packages are a handy way of sharing and re-using Unity projects and collections of assets. More info