Software systems have become increasingly complex, with millions of lines of code developed by large teams, making debugging challenging. Differential debugging, which compares a system’s current version to a previous one, helps isolate regressions, but current methods lack integration between the two versions being debugged. The presentation introduces Interactive Differential Debugging (IDD), a tool that improves this process by automating the identification of irrelevant execution paths and providing tools for comparing execution states between two versions. IDD integrates with LLDB, offering a streamlined way to detect functional or performance regressions.