This is a 40+ year old problem that's been solved but not widely solved. There are no security implications here because it's strictly a configuration manageme

This is a 40+ year old problem that's been solved but not widely solved. There are no security implications here because it's strictly a configuration management problem. If only root can do software updates, then there is no security problem. Don't modify software with incompatible versions, and there is also no problem. Package/dependency management on single /usr/lib Linux distros is a disaster because it doesn't allow for side-by-side installations of various versions leading to upgrade dependency hell. Nix solves this by isolating and versioning dependencies. GNU stow and habitat also address this.