the dlss 4 transformer model has massive ghosting and the new one has reduced ghosting and reduced performance over nativeSame here I always update all drivers when a new version arrives, same principle with bios updates too - despite many saying only update bios if you have an issue!
With regards to DLSS, I have tried experimenting with using later DLSS versions in older games but I've often seen either worse performance or visual artifacts. Forbidden West for example has severe ghosting on the latest DLSS. Someone more knowledgeable will likely correct me but I'm not convinced of the benefits of upgrading the version of DLSS if the game was not developed with it in mind.