.NET Core is the Future
According to Microsoft's development blogs, .NET 5 will be the next release name after .NET Core 3.x.
The famous Blazor demo application provides the case of clicking a button to increment a counter.
.NET Core 3.0 is Now .NET 5
2016, Microsoft announced “ASP.NET 5 is dead”, because the next release after .NET 4.6x was changed name to ASP.NET Core 1.0 and .NET Core 1.0.