Lightroom does not auto-update.
It may automatically check for updates and then notify you of the update, maybe.
The actual downloading and installing of the update is triggered by you.
I also have LR standalone, but v6.0. When I go to Help -> Updates... the Adobe Application Manager jumps in and reports "your applications are all up-to-date as checked: less than a minute ago". Adobe Lightroom is checked in the Adobe Application Manager preferences.
The LR v6.1.1 update exists, including a "bug fix" for the missing dehaze function. Is there a direct link to the update somewhere/anywhere?
The Desktop CC app still needs some prodding, I see.
In the CC app, use the gear icon, log out.
Gear icon, log in.
Desktop CC should now see the update(s).
I'm not referring to the "CC" version, nor is the OP as far as I can see!