The .NET News Daily Issue #386

https://www.roundthecode.com/dotnet-blog/missed-these-12-csharp-features

Discover 12 C# features from C# 12, 13 and 14 you may have missed, including primary constructors, collection expressions, extension members and more. The page Missed these 12 new C# features? appeare...

https://www.c-sharpcorner.com/article/why-scalar-is-replacing-swagger-in-net-9-and-10/

Discover why .NET 9 replaces Swagger with native OpenAPI using Microsoft.AspNetCore.OpenApi and modern UIs like Scalar. Streamline API testing with Postman!

https://devblogs.microsoft.com/cosmosdb/accelerate-your-cosmos-db-infrastructure-with-github-copilot-cli-and-azure-cosmos-db-agent-kit/

Modern infrastructure work is increasingly agent driven, but only if your AI actually understands the platform you’re deploying. This guide shows how to turn GitHub Copilot CLI into an Azure Cosmos DB...

https://dev.to/azure/build-a-responsive-ui-through-prompt-driven-development-2imc

This article is part of the Prompt Driven Development series from the VS Code YouTube channel. It is based on the video Build a Responsive UI through Prompt Driven Development and explains the concept...

https://visualstudiomagazine.com/Articles/2026/01/28/Hands-On-Comparison-Building-a-Dynamic-Web-App-in-VS-Code-and-Google-Antigravity-with-Prompts-Only.aspx

A hands-on test compared Visual Studio Code and Google Antigravity on generating and refining a simple dynamic Ticket Desk web application through prompts, revealing that workflow differences became m...

https://medium.com/@perisicnikola37/engineering-healthcare-systems-in-c-net-using-hl7-fhir-and-why-domain-knowledge-is-important-2d36494206f8?source=rss------dotnet-5

Beyond the code: Why domain expertise is the secret weapon for developers, and a deep dive into building healthcare systems with HL7 & FHIR

https://www.c-sharpcorner.com/article/abstract-vs-virtual-in-c-sharp/

Confused about abstract vs. virtual in C#? This guide clarifies their differences, usage scenarios, and common pitfalls. Learn when to use each for robust code design.

https://medium.com/@asnabdulmuthu/what-is-asnotracking-in-ef-core-explained-in-the-easiest-way-ed2581188b95?source=rss------csharp-5

Improve EF Core performance instantly! Discover how .AsNoTracking() can speed up your queries and reduce memory usage — simply explained

https://devblogs.microsoft.com/dotnet/dotnet-ai-essentials-the-core-building-blocks-explained/

Artificial Intelligence (AI) is transforming how we build applications. The .NET team has prioritized keeping pace with the rapid changes in generative AI and continue to provide tools, libraries, and...

https://www.c-sharpcorner.com/article/common-c-sharp-mistakes-even-senior-developers-make/

Avoid common C# pitfalls! Even experienced developers make mistakes like misusing async/await, ignoring IDisposable, and over-abstracting. Learn to write better C# code.