HeyJaredMicrosoft DevBlogs
Microsoft DevBlogs is a developer-focused publishing platform that serves as an official communication channel for Microsoft’s engineering and product teams.
- Indexed articles, last 90 days
- 18
- Latest publication
- Sep 29, 2026
- Audience
- Top 500K sites
- Earliest in this view
- Jul 6, 2026
Latest articles
Visual Studio September Update – Power Your Workflow with Your Model (opens the original)
Read excerpt
The best LLM in Visual Studio is the one you choose. This month’s update puts that idea front and center: pick the model that fits how you work, then use it everywhere GitHub Copilot already helps you today, from fixing vulnerable packages to reviewing pull requests. And once you’re in the editor, you’ll find sharper debugging tools too, whichever model is doing the thinking alongside you. Grab the Visual Studio 2026 Stable Channel update and let us know what’s working and where we should invest
Today I will… debug a production crash (opens the original)
Read excerpt
We’ve all experienced this, the desktop application is hanging, the window is greyed out, and we’re just waiting for it to start to respond. Or we’re on a website and are sure that it was going to load faster than this, but we’re just waiting the loading icon spin around and around. These sorts of problems, when they happen in production, can be difficult to diagnose since you often need to replicate them, from machine specifications to traffic loads. Today we’re going to look at one of the poss
Today I will… improve test coverage (opens the original)
Read excerpt
Today I want to look at how we can improve on the test coverage that we have in the Interview Coach application. This application has some unit tests in it already, but I’m sure there is room for improvement. Defining our baseline Before we start writing tests, it’s a good idea to have a baseline of what our coverage is so that we can find out where the gaps are, rather than just writing tests “for the sake of writing tests”. We can do this using the Analyze Code Coverage for All Tests, from eit
Performance Improvements in .NET 11 (opens the original)
Read excerpt
Take a tour through hundreds of performance improvements in .NET 11. The post Performance Improvements in .NET 11 appeared first on .NET Blog .
Why is the x86 undefined instruction called ud2? Why 2? - The Old New Thing (opens the original)
Read excerpt
If you look at x86 compiler output (or if, like me, you’re looking at a crash caused by some software that tried to detour an API), you may see an instruction ud2. What’s up with that? The ud2 instruction is an architecturally undefined instruction, guaranteed to raise an “invalid opcode” exception. Some compilers generate it to mark “unreachable” code, so that if execution somehow manages to reach it, you get a crash rather than executing random instructions. For example, if a function marked [
Publishing over time
Last 90 days. Choose a month to open its work.
Recurring subjects
Named in the text we hold. One piece can cover several.
Audience
Top 500K sites
Measured Aug 1, 2026
Website popularity band, not a count of readers or article views.
About this data
Counts cover the work we have indexed. Tone needs enough text and a confident classification. Excerpts and episode notes are not full articles or transcripts.
Identity or attribution wrong? Suggest a correction.