If you are currently running without issues, there is no compelling reason to upgrade to a later 2.x build unless you need:
Version 9.0.35.50x is a high-level firmware branch for Renault’s R-Link 2 hardware. While earlier versions (like v2.x or v3.x) often felt sluggish or lacked modern smartphone integration, the v9 branch was engineered to maximize the potential of the hardware found in models like the Key Improvements & Features rlink 2software version 903550x
For many users, this is the primary reason to upgrade. Version 9 allows smartphone mirroring to utilize the entire vertical or horizontal orientation of your screen, rather than being letterboxed. If you are currently running without issues, there