The Astonishing Stability of Clojure Libraries: A Secret Weapon Against Breaking Changes

This article explores the remarkable stability of Clojure libraries and reveals that the secret isn't static typing, but rather a community-driven practice of avoiding breaking changes. The author argues for this through analysis of Clojure's codebase stability, popular library code retention rates, and a case study of fixing a bug. The article pinpoints Clojure's stability to its data structure design (immutability, EDN serialization), naming conventions (namespace elements), and a strategy of avoiding breaking changes like renaming or altering function signatures. Instead of relying on static typing to prevent problems caused by changes, the author suggests that fundamentally avoiding breaking changes is the key to maintaining library stability.