Fearless refactoring is the agile concept that a developer should be able to incrementally change code without worrying about breaking it. But it's not believing that you don't need a safety net to detect and correct defects quickly when changes are made—that's just reckless. Here's how to avoid reckless refactoring.

When you've worked for months on a big software release, afterward you may want to jump into the next project. But building in some slack time between sprints is a good idea. After a big release, there will probably be more work as new users discover bugs in your software. Plan for some more testing and development.

Quality is now considered everyone's responsibility, and many developers are acquiring testing skills to validate their code before it gets to dedicated quality engineers. But where should you start? Consider beginning with unit tests that help you write better code, then building to integration tests and E2E testing.