Just judging by your karma you are not new to software development. So how do you imagine it? Your installation is a point in time, there are sometimes refactor

Just judging by your karma you are not new to software development. So how do you imagine it? Your installation is a point in time, there are sometimes refactorings which need to be done, version of library which fixes the security hole depends on 3 other libraries in newer version than your current one and of it goes. It such a common pattern and it's really hard to avoid because you can't maintain 20 versions of product for people who installed at different points in time. I wholeheartedly agree with the sentiment, but it sounds like a wishful thinking. If you maintain a simple library, do you backport a bugfix to every single previous released version? Because that's what would be required. From every single one of them.