I have the same warning… and on my research how to update, i found this thread.
Seems to be that the klipper version on the SV08 is customized by Sovol.
But there are some NIce People on it to standardize it again. Maybe you can find some infos here. Updating Klipper, Mainsail, Moonraker and system - SV08 - Sovol3d forum