There are massive differences in how much of a problem this is across different platforms. With Clojure, I can think of 2 times ever when a dependency caused a

There are massive differences in how much of a problem this is across different platforms. With Clojure, I can think of 2 times ever when a dependency caused an issue. It was extremely obvious since the issue was "won't compile", and the fixes were simple. With PHP, I expect any change to potentially break something. Bump your AWS SDK which uses a different minor version of guzzle? Fatal error. There's a world of difference between breakage being an everyday thing and a true rarity.