Refactoring Pitfalls: When Not to Refactor

This article explores the pitfalls of code refactoring, highlighting that not all code needs refactoring. The author presents several scenarios where refactoring is inappropriate, such as attempting to fix bugs or adapt to third-party changes through refactoring; introducing unnecessary abstraction leading to code complexity; tackling multiple code smells simultaneously; refactoring untested code; and refactoring unchanging code. The article emphasizes that refactoring should be incremental, behavior-preserving, and involve small, reversible changes with test coverage. It advocates for pausing refactoring when understanding is lacking or new requirements emerge. Refactoring frequently changing and complex code yields the best results.