For App Store apps, Quick Look shows the purchase date instead of…
You can now hide apps from your Mac App Store Purchased list.…

Navigate the Mac App Store via keyboard

You can switch between the Mac App Store’s main tabs like Featured,…

Even if you quit the Mac App Store, app downloads continue

Once the an app flies down to your dock and the download…

The Mac App Store quits when you close its window

If you close the Mac App Store’s window (either with ⌘-W or…