Copilot, performance, and AI templates
A varied .NET roundup with Visual Studio Copilot updates, .NET 9 speed tips, C# 14, MAUI, Blazor, EF Core, and AI templates.
Jasen's top three picks
- 1 GitHub Copilot Highlights in Visual Studio 17.14 Preview 3 (Available Now)
devblogs.microsoft.com
Copilot gets a meaningful Visual Studio bump here.
- 2 C# Strings + Random = A Job Title Generator You Didn’t Know You Needed
medium.com
A nice cluster of performance reads for folks chasing allocations and throughput.
- 3 .NET 9 Apps Are Faster Than Ever
c-sharpcorner.com
The .NET AI Template preview is the most forward-looking item in the mix.
Editor's note
I pulled together a deliberately mixed lineup today: tooling, performance, UI, and a little AI. The Visual Studio Copilot preview and the new .NET AI Template preview stood out because they show where the ecosystem is heading right now. I also like the Span and memory pieces for the practical side—they’re the kind of posts that still save real time on real projects.
Today's articles
GitHub Copilot Highlights in Visual Studio 17.14 Preview 3 (Available Now)
devblogs.microsoft.com
https://devblogs.microsoft.com/visualstudio/github-copilot-highlights-in-visual-studio-17-14-preview-3-available-now/
Topics: GitHub Copilot Visual Studio
Read articleC# Strings + Random = A Job Title Generator You Didn’t Know You Needed
medium.com
https://medium.com/@fulton_shaun/c-strings-random-a-job-title-generator-you-didnt-know-you-needed-b040ecdd9d00
Topics: C# Performance
Read article.NET 9 Apps Are Faster Than Ever
c-sharpcorner.com
https://www.c-sharpcorner.com/article/net-9-apps-are-faster-than-ever/
Topics: .NET 9 Performance
Read articleMastering the New Era of C#: Exploring Advanced Features in C# 14
c-sharpcorner.com
https://www.c-sharpcorner.com/article/mastering-the-new-era-of-c-sharp-exploring-advanced-features-in-c-sharp-14/
Read articleCsv-CSharp — Extremely fast CSV parser for .NET / Unity
nuskey.medium.com
https://nuskey.medium.com/csv-csharp-extremely-fast-csv-parser-for-net-unity-db1aac71af29
Topics: .NET Core Performance
Read articleC#’s Dirty Little Secret: How Span Obliterates Arrays in Performance
medium.com
https://medium.com/@nagarajvela/c-s-dirty-little-secret-how-span-t-obliterates-arrays-in-performance-6cf05071dede
Topics: C# Performance
Read articleWhat is MVC Routing in .NET?
medium.com
https://medium.com/@chikeredev/what-is-mvc-routing-in-net-2884ea4bc369?source=rss------csharp-5
Topics: ASP.NET Core .NET Framework
Read articleWhy 90% of .NET Devs Still Get Concurrency Wrong
medium.com
https://medium.com/turbo-net/why-90-of-net-devs-still-get-concurrency-wrong-6bbef93a75f7
Topics: C# Performance
Read articlePreview 2 of the .NET AI Template Now Available
devblogs.microsoft.com
https://devblogs.microsoft.com/dotnet/announcing-dotnet-ai-template-preview2/
Read articleC# in the Browser: Blazor vs JavaScript — A Full Stack Experiment
medium.com
https://medium.com/@nagarajvela/c-in-the-browser-blazor-vs-javascript-a-full-stack-experiment-0456649c7f49
Read articleMastering Git Branch Management
c-sharpcorner.com
https://www.c-sharpcorner.com/blogs/mastering-git-branch-management
Topics: Azure DevOps GitHub
Read articleMemory Mastery: How to Slash Allocations in High-Performance C#
medium.com
https://medium.com/@nagarajvela/memory-t-mastery-how-to-slash-allocations-in-high-performance-c-e1e14d7b78bf
Topics: C# Performance
Read articleBeyond the Code: How .NET is Quietly Shaping the Future of Software
medium.com
https://medium.com/@Adem_Korkmaz/beyond-the-code-how-net-is-quietly-shaping-the-future-of-software-3ed40c810cc7
Read article.NET 10 Preview 3 - .NET APIs Get Validation, Server-Sent Events (SSE), and more!
youtube.com
https://www.youtube.com/watch?v=96lKoqQXbf4
Read articleDependency Inversion - SOLID
medium.com
https://medium.com/@yilmaz.my/dependency-inversion-solid-08534a2da6be
Topics: C# Solid Principles
Read articleWhy .NET 9 Apps Are Faster Than Ever(How to Take Full Advantage)
itnext.io
https://itnext.io/why-net-9-apps-are-faster-than-ever-how-to-take-full-advantage-47462879085d
Topics: .NET 9 Performance
Read articleMastering Entity Framework Core (EF Core) Part 2
medium.com
https://medium.com/@circuitstocode/mastering-entity-framework-core-ef-core-part-2-9bd9b52fcd01
Read article.NET Project Created But No .csproj File? Here's What You Need to Know
medium.com
https://medium.com/dot-net-sql-learning/net-project-created-but-no-csproj-file-heres-what-you-need-to-know-4df5f2070685
Read articleAsynchronously Grouping Totals in MAUI [GamesCatalog] - Part 13
c-sharpcorner.com
https://www.c-sharpcorner.com/article/asynchronously-grouping-totals-in-maui-gamescatalog-part-13/
Topics: .NET MAUI Performance
Read articleIntroduction to the C# SDK for Model Context Protocol (MCP)
youtube.com
https://www.youtube.com/watch?v=krB1aA9xpts
Topics: OpenAI Semantic Kernel
Read articleVSCode Extensions for Developers in 2025 (C#, Angular, React)
medium.com
https://medium.com/@Adem_Korkmaz/vscode-extensions-for-developers-in-2025-c-angular-react-0d3c793aea6d
Topics: C# Visual Studio Code
Read articleThe .NET 2025 Evolution: What Senior Developers Must Know Now
medium.com
https://medium.com/asp-dotnet/the-net-2025-evolution-what-senior-developers-must-know-now-550e11672e7e
Read articleHow to Fix Coding Errors with Copilot
c-sharpcorner.com
https://www.c-sharpcorner.com/article/how-to-fix-coding-errors-with-copilot/
Topics: C# GitHub Copilot
Read articleMastering .NET MAUI: Best Practices for High-Performance Applications
medium.com
https://medium.com/@consulting_44298/mastering-net-maui-best-practices-for-high-performance-applications-7d5a434c97de
Topics: .NET MAUI Performance
Read article