Have a rc pro controller, unfortunately it is not compatible with the new mini 4 prodo i need to sell the controller? Is it sad or do you make an update that it works? compatible,

Hi there, thank you for reaching out. The DJI RC Pro is compatible with the following device, DJI Mavic 3 Pro, DJI Mavic 3 Pro Cine, DJI Mavic 3 Classic, DJI Mavic 3, DJI Mavic 3 Cine, DJI Mini 3 Pro, DJI Air 2S.

At the same time, sorry that we have no related information about the updating. If you would like to use with the DJI Mini 4 Pro, it is suggested you could use with the DJI RC 2 and here is the product link, thanks.
https://store.dji.com/product/dji-rc-2?vid=143481