I have had S1 4 for some time now, and have always checked for updates, which i always install, and which the program handles itself. I have been checking for the update to S1 5, but it keeps informing me that i am already up to date. Am i missing something? Do i have to pay for the update now? Or join Sphere? Any assistance will be gratefully recieved. current build number 4.6.2.58729 3rd June 2020