Rock pi board Download site

Can anyone provide an updated site to download datasheet, images, schematic , pin configuration,change log,PCB layout of the latest Rockpi 4B+ , hardware V1.72 ?

I check offical web sites , does not find the latest information of board V1.72…
I mainly needed the schematic , pin configuration, and realted lateset ubuntu server images to make sure I can back on track if I messed up anything…