A Backporting developer is crucial for maintaining and enhancing the performance of your software across different versions. They ensure that the useful features and bug fixes from the latest versions of your software are compatible with older versions. This process helps in keeping your entire user base satisfied, regardless of the software version they use. Furthermore, it ensures system stability and security by applying necessary patches. Therefore, hiring a Backporting developer can significantly contribute to user satisfaction, system longevity, and overall software quality.