Editor's note
I curated a very mixed issue this time: from LINQ laziness and middleware internals to API design, observability, and AI tooling. The OpenTelemetry piece and the Visual Studio 2026 release stood out because they affect daily development work right away.
LINQ, APIs, and observability in .NET
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Today's Articles
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Jasen's take on today's picks
How LINQ Execution Actually Works: Power of Being Lazy
A clear look at why LINQ stays lazy until enumeration, which is still a common source of surprises in real apps.
Stop Cascading Failures: A Practical Guide to the Circuit Breaker Pattern in .NET
A practical circuit breaker walkthrough with Polly that helps you stop one failing dependency from taking everything down.
What Are the New Features in C# 13?
A solid refresher on C# 13 changes, especially useful if you’re tracking what lands with .NET 9 and compiler updates.
Solving SOLID Problems with Design Patterns in .NET
Design patterns applied to SOLID problems can be useful when the abstractions are getting messy, not just in theory.
A smarter way to learn .NET without reading the docs
Interesting angle here: using AI to learn .NET from docs and videos without grinding through every page manually.
Step-by-step guide to create an ASP.NET Core project through Visual Studio
This is a straightforward Visual Studio starter guide, handy for absolute beginners but not likely to challenge experienced devs.
Pagination, Sorting & Searching in ASP.NET Core Web API
Good coverage of pagination and searching in ASP.NET Core Web API, with offset versus keyset tradeoffs called out.
Building CRUD API with Dapper and Dapper Plus in ASP.NET Core
Dapper Plus adds speed and convenience to CRUD work, and the article focuses on that control-versus-productivity balance.
Middleware remains one of the most important parts of the ASP.NET Core pipeline, so a deep dive is always worth a read.
Microsoft.Extensions.AI: The .NET Feature That’s Quietly Killing Boilerplate
Microsoft.Extensions.AI is the quiet productivity win here: less glue code when adding LLM features to .NET 9 apps.
Smart AI Customer Support Chatbot with Angular + ASP.NET Core + Python (ML/NLP)
A full-stack chatbot example that blends Angular, ASP.NET Core, and Python is ambitious, though more demo than blueprint.
Visual Studio 2026 18.3 Released
News about a new Visual Studio release is always worth skimming because tooling updates affect everyone immediately.
Swagger UI: Architecture, Configuration, and Enterprise Implementation Guide
Swagger UI implementation guidance is useful when teams need consistent, shareable API docs rather than ad hoc setup.
Observability in .NET with OpenTelemetry
OpenTelemetry in .NET is one of the most practical observability topics right now, especially for distributed systems.
Beyond HTTP: Timer, Queue, and Blob Triggers
Beyond HTTP triggers, Azure Functions gets more interesting when timer, queue, and blob events enter the picture.
Light up Multiple Databases with a Single API with Data API builder's multi-source configuration
Data API builder’s multi-source support is notable if you want one API over multiple databases without writing all the plumbing.
LINQ in C#: Understanding the Select() Operator
Select() looks simple, but the article reminds you how much projection shapes your query behavior and data flow.
Creating standard and "observable" instruments: System.Diagnostics.Metrics APIs - Part 3
Metrics APIs are easy to overlook until you need real instrumentation, which makes this a valuable practical series entry.
Claude Sonnet 4.6 in Microsoft Foundry-Frontier Performance for Scale
Claude Sonnet in Microsoft Foundry is noteworthy for teams experimenting with frontier models inside the Azure ecosystem.















