The .NET News Daily Issue #203

Introducing GPT-4.1 in the API: Faster, Smarter, and More Powerful

https://www.c-sharpcorner.com/news/introducing-gpt41-in-the-api-faster-smarter-and-more-powerful

Introducing GPT-4.1, GPT-4.1 mini, and GPT-4.1 nano in the API smarter, faster, and more cost-efficient AI models.

Want to Be a Top .NET Developer? Follow These 20 Coding Rules Every

https://medium.com/@hasanmcse/want-to-be-a-top-net-developer-follow-these-20-coding-rules-every-06e1f94a8cdc

Learn the 20 essential C# coding rules every .NET developer must know to write cleaner, scalable code — boosting your software engineering…

The Risks of Misconfigured CORS in Web Development

https://www.c-sharpcorner.com/blogs/the-risks-of-misconfigured-cors-in-web-development

CORS (Cross-Origin Resource Sharing) is vital for web security, but misconfigurations can expose sensitive data. Best practices include restricting origins, avoiding wildcards, and using proper authen...

dotNetDave Says… Avoid Going Across the Wire Until Necessary!

https://dotnettips.wordpress.com/2025/05/12/dotnetdave-says-avoid-going-across-the-wire-until-necessary/

Network calls create significant performance bottlenecks in modern applications due to latency and unpredictability. Developers should prioritize chunky communication and batch requests to improve eff...

Understanding the Difference Between .NET and C#

https://lock29down.medium.com/understanding-the-difference-between-net-and-c-14fb9f8c24b2

A practical refresher for developers on the distinct roles of the .NET framework and the C# programming language.

Your Entity Framework Code is Too Slow — Here’s Why

https://medium.com/dot-net-sql-learning/your-entity-framework-code-is-too-slow-heres-why-a4951bdd8300

“Data is loading, but the clock says lunch time! Why is it so slow?” This is a question often asked by developers when using Entity… Continue reading on Dot Net, API & SQL Learning »

🔴 VS Code Live - Security Guardrails for VS Code Agent Mode

https://www.youtube.com/watch?v=Uolr0QdQeYA

Codacy: https://www.codacy.com/guardrails In this live stream we’re going to look at how Codacy Guardrails works and how it’s making Agent Mode even more awesome.

Using the new AI template to create a chatbot about a website

https://andrewlock.net/using-the-new-ai-template-to-create-a-chatbot-about-a-website/

In this post I use the new Microsoft's new .NET AI template to ingest the contents of a website and create a chatbot that can answer questions with citations

Stop Using IResult — Your API Deserves the Truth

https://medium.com/@metoz.florian/stop-using-iresult-your-api-deserves-the-truth-7eca0cacdfed

Ever reached for IResult or IObjectResult in ASP.NET Core because it’s “just easier”? You’re not alone—but that convenience can hide…

3 Architecture Patterns Every .NET Developer Must Know

https://medium.com/dot-net-sql-learning/3-architecture-patterns-every-net-developer-must-know-33b556c052e4

As the software world becomes increasingly complex, .NET developers need to not only write code, but also design robust, scalable, and… Continue reading on Dot Net, API & SQL Learning »

The Value of Vibe Coding and Vibe Tools in Creating High-Impact Proof of Concepts

https://www.c-sharpcorner.com/article/the-value-of-vibe-coding-and-vibe-tools-in-creating-high-impact-proof-of-concept/

Vibe Coding empowers teams to build strategic, production-ready POCs quickly using AI tools, real-time collaboration, and reusable components—turning ideas into impactful, functional solutions faster ...

The Stunning Impact of C#’s New Primary Constructors

https://medium.com/@nagarajvela/the-stunning-impact-of-c-s-new-primary-constructors-c7e330b3cfab

Learn how C# 12’s primary constructors streamline development with a sample project and code examples. Continue reading on Let’s Code Future »

C# Record Type Overview as Diagram

https://medium.com/@mmmsonu/c-record-type-overview-as-diagram-696974561765

From performance gains to scalability hacks: A Practical Guide for .NET Developers

https://medium.com/@mikhail.petrusheuski/from-performance-gains-to-scalability-hacks-a-practical-guide-for-net-developers-b02a1b29a98d

Introduction

Say Goodbye to AutoMapper: Why .NET Devs Are Switching to Mapperly

https://itnext.io/say-goodbye-to-automapper-why-net-devs-are-switching-to-mapperly-1730ce4a654f

Eliminate runtime surprises with compile-time mapping and faster performance. Continue reading on ITNEXT »