Depend what you mean by latest, if you compare the stuff to official of course we can never catch up to that.
The item/monster/spawn databases (pre-re and re) are updated to as recent as March~April 2020 of rAthena's.
For skills and maps, they get updated as we see the need. I know there are new classes, in private server (rAthena) things haven't settle yet so we are not adding them to our skill database until we have a more clear picture on them.
