I’ve known about this since the day it was announced but forgot to update my mirror accordingly. So perhaps it’s really true that I’m as slow as the official mirror provided by ibiblio…
Here’s the announcement from the Zorin Group:
Users who already have Zorin OS 6 Core installed do not need to get Zorin OS 6.1 Core as all the aforementioned updates and improvements in 6.1 can be applied by installing the latest updates from the Update Manager.
As you may notice, I only mirror the 64bit distributions. If you need 32bit you can get them via the official mirrors provided through the Zorin Group and it’s proprietaries.