Modbus RTU / TCP Documentation

Where to find the specification / documentation of Solax Hybrid inverter modbus rtu/tcp?

I'am searching for a more recent version of this document:

https://downloads.vodnici.net/uploads/wpforo/attachments/906/6650-SolaxHybrid-X1X3-G4-ModbusTCPRTU-V3-24-English230317.pdf