With the feature code freeze continuing, the Wine team had put up a third Release Candidate for the upcoming stable main release of Wine 10.0 coming in early 2025. There's no new features since they're focused on bug fixes only right now. New features will return for the development releases following Wine 10.0.
At some point after the release of Wine 10.0 we'll see Valve and their partners at Codeweavers update Proton and we'll then see a Proton 10.0 release as well. We don't know exactly when that will happen though, for the Wine 9 to Proton 9 release, it took about a month and a half to arrive.