fundamental issue between "change everything once in a big step" and "many small changes". First is pre internet, because updates cost money, and because pre i

fundamental issue between "change everything once in a big step" and "many small changes". First is pre internet, because updates cost money, and because pre internet security issues weren't common. Second is now, change one thing every day, always run the latest code, automated testing to make the latest code always work. Also means don't need a security branch and a feature branch. People hate change, and linux people have the ability to say no and do their own thing.