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I was away while Microsoft BUILD happened last week. After catching up, here are the things that caught my eye this week in .NET. I’d love to hear what you found most interesting this week. Let me know in the comments or on Twitter.
Today, we’re announcing that the next release after .NET Core 3.0 will be .NET 5. This will be the next big release in the .NET family.
There will be just one .NET going forward, and you will be able to use it to target Windows, Linux, macOS, iOS, Android, tvOS, watchOS and WebAssembly and more.
We will introduce new .NET APIs, runtime capabilities and language features as part of .NET 5.
There were a lot of announcements at Build but this is the one that caught most of my attention.
I never noticed the docs available for gRPC. Most notably is the Comparing gRPC services with HTTP APIs
Back when we were getting ready to ship .NET Core 2.0, I wrote a blog post exploring some of the many performance improvements that had gone into it. I enjoyed putting it together so much and received such a positive response to the post that I did it again for .NET Core 2.1, a version for which performance was also a significant focus. With //build last week and .NET Core 3.0‘s release now on the horizon, I’m thrilled to have an opportunity to do it again.
A big impediment to software evolution has been the fact that you couldn’t add new members to a public interface. You would break existing implementers of the interface; after all they would have no implementation for the new member!
Default implementations help with that. An interface member can now be specified with a code body, and if an implementing class or struct does not provide an implementation of that member, no error occurs. Instead, the default implementation is used.