BPI-R4: snapshot openwrt installed on SD card, can I sysupgrade?

Hi,

many months ago I installed openwrt on my BPI-R4 (SNAPSHOT r25683-d4a40827ba, kernel 6.1.82) on SD card: now I would like to upgrade to 24.10 version but I don't know (sorry for my ignorance) if I can do a Sysupgrade or if I need to do a fully reinstall on SD card?

Thanks in advance

Sysupgrade should work fine to 24.10 as the underlying tooling that it uses is already there in snapshot. You should wipe the configuration with sysupgrade -n and start from scratch, as an old snapshot has high likelihood of mismatched configs.