Another video on Dissecting the Code YouTube channel: "ConfigureAwait best practices". I feel we have a cargo cult on using ConfigureAwait without thinking too much. youtu.be/bUHQeY-DlBc?...

High‑performance terrain in .NET isn’t magic — it’s data‑oriented design, SIMD, and clever parallelism. This #dotNETConf session shows how to build terrain systems that stay fast even when the world gets huge. ▶️ Watch: buff.ly/TXGoBSN

Blogged: Creating and consuming metrics with System.Diagnostics.Metrics APIs andrewlock.net/creating-and... In this post I provide an introduction to the System.Diagnostics.Metrics API, show how to create a custom metric, and show how to read it with dotnet-counters #dotnet

After a long wait, I've finally published the sixth part in my "Writing a .NET Garbage Collector in C#" series. Today, we start implementing mark and sweep. minidump.net/writing-a-ne...

WinDev Helper - A WinUI Extension for VS Code buff.ly/TSMlojg Still working out the kinks - Submit issues and feature requests here: buff.ly/FDzXpv9 #windowsdev #winui #windowsappsdk #vscode #dotnet

Just launched my new game Number Match – Pairs & Sum of 10 on the Microsoft Store! A relaxing but brain‑boosting puzzle you can play anytime. Addictive, clean, and surprisingly challenging. Free download 👇 apps.microsoft.com/detail/9NPGC... #gamedev #MicrosoftStore #Windows

My Surface tablet is acting weird: many apps don’t show the Min/Max/Close buttons. Some apps (Office, Edge, Notepad, Photos, Snipping Tool) are fine, but others like Settings, Store, Calculator, and Clock have none. Anyone know what might be causing this? #Windows11

Just launched my new game Number Match – Pairs & Sum of 10 on the Microsoft Store! A relaxing but brain‑boosting puzzle you can play anytime. Addictive, clean, and surprisingly challenging. Free download 👇 apps.microsoft.com/detail/9NPGC... #gamedev #MicrosoftStore #Windows

Feeling grateful today — my apps have now passed 6 million downloads on the Microsoft Store. Some titles are still going strong, others lived their full life back in the Windows Phone era, but the journey continues to inspire me to build new things. #gamedev #windows #MicrosoftStore #uwp #xaml

Feeling grateful today — my apps have now passed 6 million downloads on the Microsoft Store. Some titles are still going strong, others lived their full life back in the Windows Phone era, but the journey continues to inspire me to build new things. #gamedev #windows #MicrosoftStore #uwp #xaml

Blogged: The Windows File Explorer replacement, File Pilot, is awesome andrewlock.net/windows-expl... In this post I describe my experience with the Windows File Explorer replacement, File Pilot. It's blazingly fast, feature rich, and has hotkeys everywhere

My Surface tablet is acting weird: many apps don’t show the Min/Max/Close buttons. Some apps (Office, Edge, Notepad, Photos, Snipping Tool) are fine, but others like Settings, Store, Calculator, and Clock have none. Anyone know what might be causing this? #Windows11

🦙📢 It's been an amazing celebration of #XAMLStudio v2 these last couple of weeks. 🎊 And so #WindowsDev to culminate it all, I'd like to announce that the project is now open-sourced! A seed project in the @dotnetfdn 🎉 Read all about this journey here: devblogs.microsoft.com/ifdef-window...

I have added some new animations for Shuffle in my 2D Mahjong game. The game is doing well. Almost 200 daily players with an average of 32 minutes per player. #gamedev #uwp #xaml #csharp #dotnet Download: apps.microsoft.com/detail/9NG9X...

Are your .NET 10 Framework Dependent (not self-contained) EXEs 5x larger than they were on .NET 9? While building the unpackaged binaries for Text Grab I couldn't understand why the build of --self-contained false was not producing EXEs that were any smaller than --self-contained true. Copilot and…

On the first day of Christmas my true love sent to me 🦙🍐🎄 A Llama in a #FluentUI #XAML Tree… 🦙🍐🎄 Happy Holidays! We're back for a classic twist to preview the upcoming 2026 #XAMLStudio v2 w/ #12DaysOfXAML! Now with a new Fluent coat 🧥! #WindowsDev 🦙🍐🎄

📢Just released - A #OpenSource C# #Blazor #SMTP Forwarder github.com/ADefWebserve...

Are you struggling to build well-designed (open-source or closed source) libraries that are distributed over NuGet.org or Azure DevOps Artifacts, then check out my .NET Library Starter Kit. It contains everything I've learned from maintaining libraries with millions of downloads.

Good advice for aspiring tech speakers 👇 dylanbeattie.net/2025/12/08/s...

Working on a C# Source generator for non nullable properties. It generates partial properties which throw an ArgumentNullException when the value is set to null. Would you use this? #csharp14 #dotnet #sourcegenerator

🚀 Excited to announce that I’ll be speaking at ASML’s next Software Masterclass! Topic: Slicing Memory Like a Pro – Span and the Art of Zero-Allocation Coding 📅 Date: Wednesday, December 10 ⏰ Time: 16:00 – 17:00 CET 👉 Sign up here to join online: lnkd.in/ec4HN4zA

Just upgraded the libraries for the trading card generator in preparation for bitbash! If you want a dino card, come join us during the event: www.bitbash.nl

Out now: The Microsoft Fluent UI #Blazor library v4.13.2! Maintenance release with .NET 10 support, Templates fixes, and about a dozen other PRs Details at fluentui-blazor.net/WhatsNew. Packages are on NuGet. Now back to getting a v5 RC out of the door...

Would be nice to use this for input validation.

Want to test your api without disabling authentication? Check out Identity Proxy, which allows you to hack your api for integration testing! svrooij.io/2025/11/19/i... #security #dotnet #development

🚀 Discover TinyEndpoints – a lightweight, attribute-driven library for ASP .NET Core Minimal APIs powered by Roslyn source generators. youtu.be/9nXROFRGSoE

My presentation from .NET Conf 2025 "Let's create an MCP Server from our .NET tool - and improve our SQL scripts with Copilot" is now available for viewing. Watch to the 6 simple steps to make your .NET Tool into a local MCP Server #dotnet #mcp #ai #dotnetconf

Nice article on the state of native AOT with the release of .NET 10: code.soundaranbu.com/state-of-nat...

Getting ready! Join in to see all the new fancy MCP features! #dotnetconf

🦙📢 Hey #WindowsDev, did you miss the Modern Windows Development with #dotnet talk at #dotnetconf yesterday? 😲 Have no fear, it's now on YouTube! 🎉 Learn all about #WinUI and #AIOnDevice with #FoundryLocal today! www.youtube.com/watch?v=IJ8s...

Blogged: Easier reflection with [UnsafeAccessorType] in .NET 10 andrewlock.net/exploring-do... In this post I show how to work with [UnsafeAccessor] to do 'easier' reflection and how to use .NET 10's [UnsafeAccessorType] with types you can't reference at compile time #dotnet

I know I'm biased, but Trdo is my new favorite app. Now it is super easy to search for internet radios and the whole thing feels so simple and clean. Also remember 100% in the tray, as minimal as minimal can be! apps.microsoft.com/detail/9nxt4...

All the graphic design I’ve done for my apps were made with Affinity Designer. I’ve been a big fan of their software, having bought both v1 and v2. Very cool to see them make a new version completely free to everyone. It’s a tool I think more people should use! www.affinity.studio

Did we need another nugget package? I sure think so! Check out this source generator that will help you automatically register your minimal endpoints. github.com/svrooij/dotn... Inspired by a YouTube video from @milanjovanovic.bsky.social some time ago. #dotnet #webapi

🎙️ Just published a new episode of INotifyPodcastChanged: Episode 11: ScreenToGif with Nicke Manarin. Have a listen:

I’ve been vocal about the poor Search experience in the #MicrosoftStore app for ages. But credit where it’s due—things have improved significantly. Game rankings feel relevant, and results are finally useful. Great to see progress. It actually makes me want to build more games for Windows.

Results from a little WinUIEx experiment this weekend. Simple API to create regions and set them: window.SetRegion( Region.CreateRectangle(window.GetBounds()) - Region(rectangle.GetBounds()); Can also be used to clip the outside of the window to a custom shape. #WinUI

If you want your WinUI app to launch to the tray, and optionally add a context menu to the tray, it is now SUPER simple with WinUIEx!

Running into a weird issue in some of my #UWP games: images occasionally fail to load. The randomness makes it hard to debug—some tiles just show up empty, even though I'm using x:Bind to local assets. Anyone know if #WinUI3 has similar quirks?

New video on Dissecting the Code YouTube Channel. This time, it's about Parallel Stacks - my very favorite @visualstudio.com feature that you probably are not using enough! I can't even count how many times it helped me production incidents investigations! youtu.be/Z5mN0VCB-KA?...

Introducing 'SQL Project Power Tools' - create, import, diagram and analyze SQL database projects in Visual Studio - a collection of tools to improve developer UX in Visual Studio 2026 and 2022 #dotnet #sqlserver #visualstudio buff.ly/bqxUxJZ

🎙️ Just published a new episode of INotifyPodcastChanged: Episode 10: Visual Studio 2026 with Mads Kristensen. Have a listen:

I don't see any ratings in the Microsoft Store app. Only the Microsoft games have ratings. Is this a bug or a bad decision? cc @kidjenius.bsky.social #MicrosoftStore

After months of late nights and early mornings, I'm back with a new app. This time inspired by my lovely Surface Pro 12-inch. Introducing Markerpad, a digital scratchpad where your ideas, unstructured notes, diagrams, and more begin. Check it out now: apps.microsoft.com/detail/9nh0w...

Blogged: sleep-pc: a .NET Native AOT tool to make Windows sleep after a timeout andrewlock.net/sleep-pc-a-d... In this post I describe a small native AOT .NET tool that I built to force a Windows PC to go to sleep after a timer expires #dotnet

Thank you #Keeyns for hosting us tonight! We have a full house, listening to Thomas Huijer's talk "Exploring C# Source Generators". #dotnetzuid

Did you rely on the SDK style SQL project in Visual Studio 2022 (with the Microsoft. Build.Sql SDK) and realize this no longer works in VS 2026? Fear not, you can use our community SDK MsBuild.Sdk.SqlProj in all your IDEs! #dotnet #sqlserver #sqlprojects #dacfx #ssdt buff.ly/5N5fLZD

🚀 Beta testers wanted! My Mahjong 2D game is ready for its first round of testing. DM me if you're up for it! 🧩 Still in progress: Tutorial, Shop & Ads — but the core gameplay is live and kicking. #xaml #uwp #csharp #dotnet #gamedev #windows

The Snipping Tool team continues to use an Ink Canvas but we do not have an Ink Canvas in WinUI3, they should contribute the control they are using to WinUI!!

The best .NET PDF generator was hiding in your browser all along! Tired of fighting with third-party #PDF components? That’s why I looked at #Playwright. It turns out the browser can generate great PDFs from your HTML and CSS. No extra licensing, no vendor lock-in. 👉 blog.hompus.nl/2025/08/18/p...