Editor's note
I put together a mixed issue this time: performance, architecture, tooling, and a few opinion pieces that still spark good conversations. The JSON performance piece and the EF Core tuning article are the practical standouts for teams chasing real wins, while the Visual Studio dev/test benefit post is a useful reminder that the tooling story matters too.
JSON performance, EF Core, and .NET 9 microservices
Jasen Fici
October 14, 2025
Tuesday greets us with the clarity of a well-named variable—no time for bugs, just pure logic. As you sip your coffee and contemplate the intricacies of .NET's latest features, find solace in the fact that today is the day for seasoned developers like us to ponder the finer points of code optimization and architectural elegance. So, pull up a comfy chair, and let's explore insights that are sure to refine your craft. Remember, in the world of .NET, every line of code is a story waiting to be perfected.
Today's Articles
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Jasen's take on today's picks
The Latest AI Features in VS Code (v1.105)
VS Code’s new AI features make the editor story feel very current, and the clean architecture spectrum piece is a solid framing article.
If you care about throughput, the JSON and EF Core posts are the most immediately useful reads in the bunch.
.NET 9: The Ultimate Platform for Microservices
I also liked the Dapr sidecar article; it’s a practical look at cutting glue code without pretending microservices are easy.
Visual Studio Dev/Test Benefit Explained
The MediatR + FluentValidation piece is a nice reminder that clean architecture still needs disciplined boundaries.
Defensive Programming with Microsoft .NET: Anticipate Errors and Eliminate Bugs
There’s also a more opinionated ecosystem piece in here, which I left in because it reflects real frustration some teams are feeling.