El Capitan 10.11.6 installed & available as update

[xetmarcr]

I'm currently running El Capitan 10.11.6 on my Mac Pro (Early 2009). I noticed the App Store shows El Capitan 10.11.6 as one of the available updates. When I select 'Download' it says that v10.11.6 is already installed on this computer.

So why is it included on the list as an available update??

Can you help to unconfuse me?

 

[dianeoforegon]

You can select to download again.

 

[xetmarcr]

OK, thanks. I guess my confusion is that I didn't remember earlier versions of OS X being listed as updates like this after being installed.

Edited to add: I just noticed that the button says 'Download' and not 'Update'!