I have rock64 2gb board very old probably v1. I have armbian 23.8 or something and had to hold back kernel and update to 25.2.3.. then upload alternate kernel to 6.6.63.. so thats where am now.. seems to be stable.
Linux rock64x1 6.6.63-current-rockchip64 #2 SMP PREEMPT Fri Nov 22 14:38:37 UTC 2024 aarch64 GNU/Linux
v25.2.3 for Rock 64 running Armbian Linux 6.6.63-current-rockchip64