fix: increase the VER to 3
use crate::Incompatible;
-pub const VER: u64 = 2;
+pub const VER: u64 = 3;
pub const MIN_COMPATIBLE_VER: u64 = 1;
pub fn check_ver(msg_ver: u64, msg_min_compatible: u64) -> Result<(), Incompatible> {
