and at that time you will be able to update via the Windows Store
From the Neowin article:
How Do I Get it:
Unlike the Windows 8.1 update, Microsoft will be pushing out this update via Windows Update on April 8th which means that it will get applied to your machine automatically. Seeing as most of the updates are convenience features too, it makes sense to use Windows update to make sure that all users have the features installed on their machines.
Does this mean we can get it either way?