Editor's note
I pulled together a deliberately mixed lineup this time, from performance and modernization to ASP.NET Core and security. The .NET 10 performance piece and the June 2025 update advisory are the standouts for anyone tracking what changes now matter most. The rest covers practical day-to-day work, including API design, observability, and refactoring patterns.
.NET 10 Performance Edition
Jasen Fici
June 26, 2025
As Thursday dawns, it’s time to channel your inner superhero and power through the week with supercharged .NET skills! Whether you're debugging like an ace or architecting new solutions, today's selection is designed to sharpen your skills and fuel your passion. Skip the coffee—grab these insights to fuel your developer drive, and transform those coding challenges into triumphs before the weekend peeks around the corner. Engage with the articles that will reframe your perspective and get you thinking like the .NET sage you are!
Today's Articles
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Jasen's take on today's picks
A strong opener if you care about runtime changes and what .NET 10 means for real-world apps.
How try-catch Works Internally in .NET – A Beginner’s Breakdown
This is a useful internals refresher that explains try-catch behavior without assuming deep runtime knowledge.
8 .NET Code Review Tips to Make Your Team Love You
Solid practical advice for keeping code reviews helpful, consistent, and less personal.
FirstOrDefault vs. SingleOrDefault in LINQ: Key Differences and Use Cases
A straightforward LINQ comparison that helps avoid subtle bugs when you expect one result, not many.
How to use Ngrok in ASP.NET Core
Ngrok remains a handy tool for local ASP.NET Core work, especially when you need external callbacks or demos.
Program.cs vs Startup.cs in .NET — What’s the Difference and Why It Matters
A good reminder of how .NET hosting moved forward, and why the newer startup model usually wins.
Deploying a .NET Weather Forecast App to AKS Using GitHub Actions and Argo CD
This deployment walkthrough ties together GitHub Actions and Argo CD in a way teams can actually adapt.
Modernizing .NET Legacy Applications: Tools and Considerations
Useful guidance for teams moving older .NET systems forward without pretending modernization is risk-free.
Building a RAG Application with Pinecone and Semantic Kernel in .NET
A timely RAG example showing how Semantic Kernel fits into a broader vector-search workflow.
EF Core interceptors are powerful, and this piece is worth a look if you want cleaner cross-cutting data behavior.
Critical .NET and .NET Framework Updates Issued in June 2025: Addressing a Remote Code Execution
Security updates matter; this one should get immediate attention from anyone maintaining .NET Framework or older runtimes.
A practical overview of rate limiting that belongs in more APIs than people usually admit.
Key Technologies in .NET Full Stack Development: From Frontend to Backend
Broad stack survey material, best for newer developers mapping the .NET ecosystem end to end.
What's New for ASP.NET Core & Blazor in .NET 9?
A quick look at ASP.NET Core and Blazor changes in .NET 9 for developers tracking the platform roadmap.
Records Are Not Just DTOs: Designing Smart, Immutable Workflows with C# Record Types
Records are used too casually; this article makes a good case for treating them as real domain tools.
Monitoring .NET Applications with OpenTelemetry and Grafana
Observability is the point here, and OpenTelemetry plus Grafana is a sensible pairing for production apps.
Modernizing Legacy Applications with the .NET Upgrade Assistant
The Upgrade Assistant can save time during migrations, but it still needs human judgment.
Difference Between Minimal API and Controller API .NET Core
A useful comparison for deciding when minimal APIs are enough and when controllers still earn their keep.
Working with MCP servers in GitHub Copilot Agent mode
Copilot agent mode with MCP servers is an interesting workflow shift for people exploring AI-assisted development.
Refactoring a C# Generic Repository with the Strategy Pattern
A classic refactoring topic, with the Strategy Pattern used to tame a generic repository design.