With your technical background you are really no worse off than most software people who have to learn the latest new framework/language/stack since these chang

With your technical background you are really no worse off than most software people who have to learn the latest new framework/language/stack since these change every 2-5 years. Some tools last a long time such as Unix shell commands but I think I have used 5 different change control packages over the years (although git does seem to be the leader for a while).