If you are still running a Solus Ultra today, here is why version 21.4 is considered the "top" tier: Modern Vehicle Limitations:
The Lab Scope and Graphing Multimeter (GMM) functionality received a resolution bump. Update 214 allows for 10 MS/s (megasamples per second) capture rate, helping you catch intermittent CAN bus glitches that slower tools miss. snapon solus ultra 214 update top
Since Snap-on has moved to the "Apollo" and "Zeus" platforms, you cannot simply click "Update" on the scanner. If you are still running a Solus Ultra
: Increased storage capacity for custom PID lists, allowing users to save up to 100 different lists to quickly revert to specific diagnostic setups. : Increased storage capacity for custom PID lists,
As of late 2024, Snap-on has officially discontinued software updates for the Solus Ultra (often called the "Modis Ultra" or platform 19.4 and older). The last official software version available for this platform was Version 21.4 (21.4.1) . It is no longer sold directly through the Snap-on website for DIY download; it must be purchased and installed via a Snap-on Franchisee (if legacy stock exists) or through third-party legacy support services.