JSON performance, EF Core, and .NET 9 microservices
A varied .NET roundup covering System.Text.Json speedups, EF Core optimization, Blazor in .NET 10, Copilot, Dapr, and validation patterns.
Jasen's top three picks
- 1 The Latest AI Features in VS Code (v1.105)
youtube.com
VS Code’s new AI features make the editor story feel very current, and the clean architecture spectrum piece is a solid framing article.
- 2 Make JSON Fast Again in .NET
blog.stackademic.com
If you care about throughput, the JSON and EF Core posts are the most immediately useful reads in the bunch.
- 3 .NET 9: The Ultimate Platform for Microservices
medium.com
I also liked the Dapr sidecar article; it’s a practical look at cutting glue code without pretending microservices are easy.
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.
Today's articles
The Latest AI Features in VS Code (v1.105)
youtube.com
The Clean Architecture Spectrum: 5 Levels for .NET Systems (CRUD to Hexagonal)
Topics: Clean Architecture GitHub Copilot Visual Studio Code
Read articleMake JSON Fast Again in .NET
blog.stackademic.com
System.Text.Json performance patterns: source-gen, Utf8JsonReader, UnsafeRelaxedJsonEscaping, and buffer reuse. Continue reading on Stackademic »
Topics: Performance Source Generators System.Text.Json
Read article.NET 9: The Ultimate Platform for Microservices
medium.com
Blazing fast. Secure by default. Built for the cloud.
Topics: ASP.NET Core .NET 9
Read articleVisual Studio Dev/Test Benefit Explained
devblogs.microsoft.com
Before joining Microsoft, I served as VP of Application Development at one of the largest temporary staffing companies in the United States. I’ll never forget the look on our CFO’s face when I told hi...
Topics: Azure .NET Framework Visual Studio
Read articleDefensive Programming with Microsoft .NET: Anticipate Errors and Eliminate Bugs
dotnettips.wordpress.com
This discusses the principles of defensive programming to enhance software development. It emphasizes error prevention strategies such as input validation, comprehensive error handling, and assumption...
Topics: C# Design Patterns Security
Read articleThe .NET 9 Concurrency Model Nobody’s Talking About — Yet
levelup.gitconnected.com
Task Parallelism vs Dataflow vs Channels vs MCP — and how Microsoft is quietly arming .NET for agentic workloads Continue reading on Level Up Coding »
Topics: .NET 9 Performance
Read articleWhat the .NET Ecosystem Lacks Today Isn’t Code: It’s Vision
medium.com
.NET doesn’t need saving or reinvention — it needs direction.
Topics: Design Patterns .NET Core Solid Principles
Read articleThe Specification Pattern in C#: Write Cleaner, More Maintainable Queries
medium.com
Stop copying and pasting LINQ queries. Start writing reusable, testable specifications.
Topics: Clean Architecture C# Design Patterns
Read articleTop 10 custom .net development service Providers in USA in 2025
medium.com
Introduction
Topics: .NET Core
Read articlePLINQ in .NET: Supercharging LINQ with Parallelism
medium.com
When performance meets simplicity
Topics: C# EF Core Performance
Read articleASP.NET Community Standup - Level up eShop with Blazor in .NET 10
youtube.com
On .NET Live | Infrastructure as Code with Pulumi
Topics: ASP.NET Core Blazor .NET 10
Read articleI Removed Half the Glue Code From My .NET System — With One Dapr Sidecar
towardsdev.com
It’s like using microservices with cheat codes enabled. — Mohammad Shoeb Continue reading on Towards Dev »
Topics: ASP.NET Core Azure Docker
Read articleThe Painful Truth About Over-Abstraction in C# — And How to Fix It
medium.com
Practical fixes for leaner C#.
Topics: C# Design Patterns Solid Principles
Read article7 Ruthless EF Core Tweaks That Made My Query 233× Faster (with a Clean .NET 9 Example)
medium.com
Look, EF Core is awesome… until it quietly turns your app into a potato. The good news? You don’t need a PhD to make it fly. I took a…
Topics: .NET 9 EF Core Performance
Read articleIntegrating GitHub Copilot with Playwright
c-sharpcorner.com
This article provides a step-by-step approach to integrating Copilot into your Playwright workflow, covering IDE setup, resilient locators, Page Object Model implementation, CI/CD integration with Git...
Topics: GitHub Copilot Unit Testing Visual Studio
Read articleUse CancellationTokens
steven-giesel.com
This is a very small blog post on why you should use CancellationTokens in your API.
Topics: ASP.NET Core C# Web API
Read articleStep-By-Step C# Scripting Guide For Unity Beginners
medium.com
C# scripting plays a crucial role in modern game development and software programming due to its simplicity, power, and versatility.
Topics: C#
Read article7 Practical Steps to Validation with MediatR + FluentValidation (Clean Architecture, .NET 9)
medium.com
You don’t need a cathedral of abstractions to validate requests. With MediatR and FluentValidation, you get clean, centralized validation…
Topics: Clean Architecture FluentValidation MediatR
Read article