The K2 version with Universal Binary compatibility is not yet released by NI.
After it is released (sometime this month, I believe) we plan to finish the port to K2 for both GPO and JABB. We can't proceed to that step until we have the compatible version in our hands. Once we have completed the port (shouldn't take too long - much preliminary work is already done) we will need to do some testing and then they will be released to our users.
The Universal Binary version will be a free downloadable update to existing GPO users.