Copilot, C# tips, and .NET 10 previews
A varied .NET roundup with Copilot agent updates, VS Code AI editor news, C# language tips, EF Core enum mapping, and .NET 10 previews.
Jasen's top three picks
- 1 For once, it is a bug in .Net!
blog.jermdavis.dev
A rare reminder that the framework is sometimes the culprit, not your code.
- 2 GitHub Copilot's New Coding Agent Is Here
c-sharpcorner.com
Copilot keeps moving from helper to agent, and the editor stack is following.
- 3 Understanding Garbage Collection and Cyclic References in C#
c-sharpcorner.com
Good practical EF Core advice if you need enums stored as strings.
Editor's note
I pulled together a very mixed issue this time: AI tooling, C# language craft, and a few practical framework writeups. The Copilot agent and VS Code open-source AI editor pieces stood out because they show how quickly the editor experience is changing, while the EF Core enum article is the sort of everyday detail that saves real teams time. I also liked the reminder that sometimes the bug really is in .NET itself.
Today's articles
For once, it is a bug in .Net!
blog.jermdavis.dev
https://blog.jermdavis.dev/posts/2025/it-was-dotnet-itself
Topics: .NET Core
Read articleGitHub Copilot's New Coding Agent Is Here
c-sharpcorner.com
https://www.c-sharpcorner.com/news/github-copilots-new-coding-agent-is-here
Topics: GitHub GitHub Copilot
Read articleUnderstanding Garbage Collection and Cyclic References in C#
c-sharpcorner.com
https://www.c-sharpcorner.com/article/understanding-garbage-collection-and-cyclic-references-in-c-sharp/
Topics: C# Unit Testing
Read articleVS Code: Open Source AI Editor
code.visualstudio.com
https://code.visualstudio.com/blogs/2025/05/19/openSourceAIEditor
Topics: GitHub Copilot Visual Studio Code
Read articleVibe coding with GitHub Copilot: Agent mode and MCP support in JetBrains and Eclipse
devblogs.microsoft.com
https://devblogs.microsoft.com/java/vibe-coding-with-github-copilot-agent-mode-and-mcp-support-in-jetbrains-and-eclipse/
Topics: GitHub Copilot Visual Studio Code
Read articleUsing Enums as Strings in EF Core
jaykrishnareddy.medium.com
https://jaykrishnareddy.medium.com/using-enums-as-strings-in-ef-core-37352f9bb0e8
Read articleThe Rise of Vibe Coding in a Universe of 47 Million Programmers by 2025
c-sharpcorner.com
https://www.c-sharpcorner.com/article/the-rise-of-vibe-coding-in-a-universe-of-47-million-programmers-by-2025/
Topics: GitHub Copilot OpenAI
Read articleRecords vs Classes in C#, What Nobody Told You!
medium.com
https://medium.com/write-a-catalyst/records-vs-classes-in-c-what-nobody-told-you-1ed864f2b57e
Topics: C#
Read articleConvert Excel to Images in C#: A Comprehensive Guide
medium.com
https://medium.com/@andrewwil/convert-excel-to-images-in-c-a-comprehensive-guide-ab5acbf29c35
Topics: C#
Read article.NET 10 & C# 14: Powerful New Features Every Developer Should Know
patilraviraj.medium.com
https://patilraviraj.medium.com/net-10-c-14-powerful-new-features-every-developer-should-know-608bdadee3f7
Read articlePrompt Engineering is the New Coding: Essential Skills for the AI Sector
c-sharpcorner.com
https://www.c-sharpcorner.com/article/prompt-engineering-is-the-new-coding-essential-skills-for-the-ai-sector/
Topics: GitHub Copilot OpenAI
Read articleNo projects just C# with `dotnet run app.cs` | DEM518
youtube.com
https://www.youtube.com/watch?v=98MizuB7i-w
Read articleWhat Web Forms Taught Me After .Net Core: A Junior Developer’s Backward Journey
medium.com
https://medium.com/@hnegi.7528/what-web-forms-taught-me-after-net-core-a-junior-developers-backward-journey-952efd5c8c6c
Topics: .NET Core .NET Framework
Read articleHow to Build a Complete Website using Github Copilot
c-sharpcorner.com
https://www.c-sharpcorner.com/article/how-to-build-a-complete-website-using-github-copilot/
Topics: GitHub Copilot Visual Studio Code
Read articleThis Tiny C# Keyword Can Save You Hours — But You’re Not Using It Right
medium.com
https://medium.com/@mohsho10/this-tiny-c-keyword-can-save-you-hours-but-youre-not-using-it-right-ffbec31be7b0
Topics: C# Solid Principles
Read articleThe 5 “Unethical” LINQ Tricks That Outsmarted My Code Reviews
medium.com
https://medium.com/c-sharp-programming/the-5-unethical-linq-tricks-that-outsmarted-my-code-reviews-a397a336452f
Read article