Even though I have been posting articles on the totally cool macOS Big Sur, I am continuing to use and test macOS Catalina on my main work station. I installed Catalina 10.15.6 Beta 4 today, all seems to be well, it is very responsive. Most of Catalina’s bugs have been worked out. We are really close to the 10.15.6 final release of Catalina. You may wonder why that is a big deal with Big Sur on the way, but I am sure many people will stay on Catalina for a while just to see how the Big Sur rollout works.