MSIX Modification Package
Extend and update your MSIX packages by taking advantage of the power and functionality of modification packages.
Decouple your application updates from your packaging process. Now you can update your application without creating a new modification package for each new version, as you used to do with MST packages.
With this support you can continuously rollout Windows 10 updates, along with application updates without being forced to repackage your apps every time.
Creating modification packages
A modification package allows you to update and extend an application installed using an MSIX package. Consider it the modern equivalent of an MST package.
See how you can create and use a modification package in the following video.
More about MSIX packages
To learn more about the MSIX package format see the following article.