RefactorInsight is a plugin for IntelliJ IDEA that enhances the representation of code changes with refactoring information in Java and Kotlin projects. The plugin introduces a smart diff for code changes in Java and Kotlin where refactorings are auto-folded and provided with their description, thus allowing users to focus on changes that modify the code behavior like bug fixes and new features. RefactorInsight supports three usage scenarios: viewing smart diffs with auto-folded refactorings and hints, inspecting refactorings in pull requests and at any specific commit in the project change history, and exploring the refactoring history of methods and classes.

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