[wsc981]

I think Xamarin really stays up-to-date with the newest features for iOS. At least that was true back when I wrote some apps with it, a few years ago.

I believe they have some automated tooling to update the APIs when Apple releases newer versions of the iOS SDK, so usually new features arrive on the same day in Xamarin iOS SDK as they do in Apple's iOS SDK.

I am not sure if the situation is the same for Xamarin and Android.

I wouldn't really hesitate to use Xamarin again in the future if a client requested it, but I haven't tried React Native yet and not sure if I should dedicate time for it or if it'll be gone in a few years. Seems quite a few mobile jobs require React Native experience these days.