It depends on internal priorities and what was changed between versions so I can’t give you an estimate. It’s also difficult for support across the applications it’s embedded inside of (Maya, Max, etc).
In the same theme as the thread for C4D R20 support, does anyone know what changed in 4? I guess the first thing to try and figure out is what caused the frame range to fail… Does anyone have Octane 4 handy to check the command line flags? I can compare against?
It looks like we’re passing -a <number> -a <number> for start and end frames which seems pretty ambiguous. I would not be surprised if they changed those two.