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Announcing Microsoft Desired State Configuration v3.3.0

https://devblogs.microsoft.com/powershell/announcing-dsc-v3-3-0

Published: September 17, 2026 14:57

We're excited to announce the General Availability of Microsoft Desired State Configuration (DSC) v3.3.0. This release delivers three new built-in Windows resources, a new registry-backed adapter, expanded --what-if support, experimental export filtering,…

Auto SR Comes to Intel Core Ultra Series-3 Processors

https://devblogs.microsoft.com/directx/autosr-on-intel

Published: September 16, 2026 21:07

Today, we’re excited to announce we’re expanding the availability of Auto SR to Intel Core Ultra Series 3-based Copilot+ PCs. This builds off our previous expansion of Automatic Super Resolution (Auto SR) to support

PackageType: Main, Framework, Resource, Optional, Bundle

https://devblogs.microsoft.com/insidemsix/msix-package-types

Published: September 15, 2026 16:00

Every MSIX package is one of four package types: Main Framework Resource Optional MSIX also supports Bundle packages. Bundles are somewhat different from those four package types: a Bundle is a container for one or more MSIX packages. Windows APIs…

Today I will... improve test coverage

https://devblogs.microsoft.com/visualstudio/today-i-will-improve-test-coverage

Published: September 15, 2026 16:00

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 star

From Redis pressure to a healthier service

https://devblogs.microsoft.com/powerplatform/azure-managed-redis-migration

Published: September 15, 2026 15:47

The engineering journey behind an Azure Managed Redis migration for Copilot Studio agent flows Microsoft Copilot Studio helps organizations build agents and automate business processes. Agent flows let those agents carry out repeatable work across conne

Performance Improvements in .NET 11

https://devblogs.microsoft.com/dotnet/performance-improvements-in-net-11

Published: September 15, 2026 12:00

Before television shows like The Office and Parks and Recreation cemented the mockumentary in the minds of millions, there was Christopher Guest. He didn't invent the genre, but he's widely recognized as one of its most influential practitioners, and for…

C++ in the Age of AI: Visual Studio at CppCon 2026

https://devblogs.microsoft.com/cppblog/c-in-the-age-of-ai-visual-studio-at-cppcon-2026

Published: September 14, 2026 19:34

At CppCon 2026, we shared how Visual Studio is evolving to help you work more effectively with large C++ codebases, improve build and runtime performance, adopt the latest language features, and incorporate AI into your existing workflows. This post is a…

Share your .NET story with the community

https://devblogs.microsoft.com/dotnet/share-your-dotnet-story

Published: September 14, 2026 17:05

The best way to understand what .NET makes possible is to see what teams are building with it. At .NET Conf 2026, we want to share more stories from people and organizations using .NET to solve real problems. If your team has built a new application,…

Why didn't ReadDirectoryChangesW provide a way to correlate the two sides of a rename operation?

https://devblogs.microsoft.com/oldnewthing/20260914-00/?p=112696

Published: September 14, 2026 14:00

Brian Dellisanti asked why Read­Directory­ChangesW didn't provide a way to correlate the two sides of a rename operation. I wasn't there, but I can guess. My guess is that the implementation alwa

Building a Japanese LLM Evaluation Pipeline: Lessons from a Two-Day Hackathon

https://devblogs.microsoft.com/ise/japanese-llm-evaluation-pipeline-hackathon

Published: September 14, 2026 07:00

Introduction A: かしこまりました。ご注文番号をお教えいただければ、配送状況をお調べいたします。 B: ご不安ですよね。ご注文番号をお教えいただければ、すぐにお調べいたします。 Which sentence do you think is more appropriate as a response from call center AI?

Microsoft at CppCon 2026

https://devblogs.microsoft.com/cppblog/microsoft-at-cppcon-2026

Published: September 14, 2026 00:16

Microsoft will be at CppCon 2026 in Aurora, Colorado, which is taking place from September 14 through 18. Join us for talks from Microsoft speakers and colleagues across the C++ community and visit the Microsoft booth Monday through Thursday to meet the…

How can I remove the Close button from my window caption?

https://devblogs.microsoft.com/oldnewthing/20260911-00/?p=112691

Published: September 11, 2026 14:00

Occasionally, somebody wants to create a window without a Close button. The only way to get rid of the Close button is not to have a System menu at all: Remove the WS_SYS­MENU style from the window. But that also gets rid of the Minimize and Maximize…

MSVC C++23: constexpr cmath with LLVM Libc

https://devblogs.microsoft.com/cppblog/msvc-c23-constexpr-cmath-with-llvm-libc

Published: September 10, 2026 21:19

Proposal P0533R9 made numerous math functions in the standard library compile-time evaluable in C++23. Implementing the feature required a good bit of time and effort, but MSVC is preparing its experimental implementation for the 14.52 build tools…

Announcing Azure AI Speech LLM 2607: Better Multilingual Accuracy, Easier Customization

https://devblogs.microsoft.com/foundry/announcing-azure-ai-speech-llm-2607

Published: September 10, 2026 18:08

Azure AI Speech continues to deliver regular improvements to LLM Speech throughout the year, helping developers build more accurate and capable voice experiences. We’re announcing LLM Speech 2607, our latest model update, which brings improvements in…

Why is the x86 undefined instruction called ud2? Why 2?

https://devblogs.microsoft.com/oldnewthing/20260910-00/?p=112689

Published: September 10, 2026 14:00

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,…

What's new in Microsoft Foundry: July and August 2026

https://devblogs.microsoft.com/foundry/whats-new-in-microsoft-foundry-july-august-2026

Published: September 9, 2026 23:00

Microsoft Foundry's July and August 2026 updates make Hosted Agents, Voice Live integration, and Toolboxes generally available; expand Claude tools hosted on Azure; update Model Router's regions and model pool; add Foundry Local capabilities; and advance…

Advancing trusted AI innovation with Agents and new Azure OpenAI models in Azure Government

https://devblogs.microsoft.com/azuregov/advancing-ai-innovation-in-azure-government

Published: September 9, 2026 18:30

Today, we are announcing expanded AI capabilities available across the Microsoft Azure for US Government portfolio. The Microsoft Foundry Agent Service is now available in Azure Government, giving organizations managed infrastructure on which to build,…