With the firmware update v1.42 on MPPT charge controllers, they introduced new registers for settings:
- Adjustable tail current 
- Adjustable re-bulk offset voltage 
- Adjustable automatic equalization 
But seeing how the VE.Direct hex protocol hasn't been updated since 2018 I asked a sales representative if there is newer documentation out there and they told me to instead use the venus products for communication as "the hex protocol is not supported anymore." (Which I assume just uses the hex/text protocol anyways)
So is VE.Direct hex discontinued and no longer updated? Because to be honest that is the main reason I went with Victron to begin with over other competitors. The open and well-documented protocol.
