Preview version for Mac 10.11 or 10.12?

I believe it's 10.11, per @kevinushey's answer here, too.

I don't have 10.11 to test, but hopefully the IDE team can clear this up. There was an unintentional 10.12 requirement, but I believe that's been patched:

I wonder if it's fixed in the dailies but not in preview for some reason:

Thanks for reporting.