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- Open Source .NET – 2 years later by Matt Warren.
- Problems with AsParallel by Szymon Warda.
- Digging into the CoreCLR - Some bashing on the cost of hashing by Federico.
- Entity Framework Core and Cross-Database Support by Shay Rojansky.
- Entity Framework Core – Unit Testing by Christian Nagel.
I wrote a post on Exploring Middleware as MVC Filters in ASP.NET Core 1.1
I also recommend Tim Seaward's article (part 3) on Pipelines - The journey continues to Secure Pipelines, via OpenSsl