There is something inherently wrong with a Company's support chain and - in the greater scheme of things, it's industrial design - if a product requires you access another location to understand what it is that its installation will do, and / or leave it to 3rd Party reporters, reviewers and media to explain what an update does; or where a particular app is, the features of it and / or how to find 'hidden' controls and what they do.
Updates need to be clear as to what they do (and what they replace and how big the update is) as part of the pre-installation process; and when a product does not come with an 'owner's manual', the designers need to ensure operating it (as a newbie or old hand) is completely intuitive and clear what it's apps and controls are, and where to fnd them.
Apple is getting sloppy in it's old age.