Regarding HTTP/2: I felt the development of this feature went a little bit "strange". For a long time the feature was blocked by missing support for ALPN negoti

Regarding HTTP/2: I felt the development of this feature went a little bit "strange". For a long time the feature was blocked by missing support for ALPN negotiation on SSL. There was some interest from the outside to work on it, but discussion on it was stuck for a loooong time (1.5 years). As far as I can see now ALPN support has finally been added to .NET core: https://github.com/dotnet/corefx/pull/24389 https://github.com/dotnet/corefx/pull/24389 HTTP/2 itself requires ALPN to talk to browsers, however a large part of the implementation can already been done without it. Out of personal interest I poured quite a ton of work in the beginning of this year into writing a solid HTTP/2 library for .NET, which could have been the base for webservers as well as things like GRPC: https://github.com/Matthias247/http2dotnet https://github.com/Matthias247/http2dotnet It's state should be good enough to enable HTTP/2 now with less than a 2 weeks of work. However unfortunately I never got any feedback around it or felt interest in it, even though I think lots of stakeholders should be aware about it. It seems like the ASP .Net core team is implementing now their own HTTP/2 library, which was far more barebones than mine when I last looked at it (https://github.com/aspnet/KestrelHttpServer/pull/1991 https://github.com/aspnet/KestrelHttpServer/pull/1991). Don't have the time and interest to review the latest state.