Editor's note
I pulled together a very mixed lineup this time: performance, architecture, security, and a few core language refreshers. The memory leak post-mortem and the “one await” slowdown stood out to me because they’re the kind of bugs that hide in plain sight. I also liked the zero-trust ASP.NET Core 10 piece for folks thinking ahead about app hardening.
Performance, DI, and C# fundamentals
Get ready to hit the ground running this Monday with a turbocharged .NET newsletter designed to fuel your week with innovation and insight. As experienced developers, you know the power of a well-optimized Monday—it's like putting a fresh set of racing tires on your favorite classic car. Peel out not on the rubber, but on the freshest tips, updates, and tricks that will steer your projects towards peak performance. Buckle up for a journey through a world of .NET excellence curated to keep you miles ahead.
Today's Articles
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Jasen's take on today's picks
Mastering Connection Pooling with Dapper in ASP.NET Core Web API
Good practical Dapper advice for keeping connection handling sane under load.
Value vs Reference Types in C# — Explained with Real Examples and Analogies
A clear refresher on value vs. reference types, which still trips people up in reviews.
Millions Code in .NET — Why Developers Still Hide It in 2025
The memory leak post-mortem is the kind of real-world debugging story worth studying.
Understanding SOLID Principles with simple Console App in .NET
SOLID and DI guidance that feels aimed at teams cleaning up older codebases.
Why a try-catch Block Crashed Our Entire .NET App
Security and performance pieces here are especially useful if you’re shipping APIs in 2025.
The .NET Memory Leak That Took 6 Weeks to Find: A Post-Mortem (with Full Code Examples)
A useful reminder that small async mistakes can have outsized impact.













