TRBing.com felt it was mature enough to upgrade to. See https://blogs.msdn.microsoft.com/dotnet/2018/08/20/bing-com-runs-on-net-core-2-1/ for details.Reply·Thread·Aug 20, 2018·1·When can we really expect .Net Core to be a real player in dot net world? I mean it changes a lot right now and learning it for now is a waste of time I believe.