.NET Blog: Get Your .NET MAUI App Ready for Xcode 27 https://t.co/yfnIjSzA8e Your existing .NET MAUI app builds with Xcode 27, installs on an iPhone running iOS 27, shows its splash screen, and then disappears. Not exactly the grand entrance you were hoping for. That symptom … — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Oct 19, 2026
.NET Blog: Get Your .NET MAUI App Ready for Xcode 27 https://t.co/yfnIjSzA8e Your existing .NET MAUI app builds with Xcode 27, installs on an iPhone running iOS 27, shows its splash screen, and then disappears. Not exactly the grand entrance you were hoping for. That symptom …
.NET Blog: Bring Your Own Model to the GitHub Copilot SDK with C# https://t.co/5xjdkNO4GA Hi, I know, I keep coming back to the same theme on this blog: agent harnesses. In Build Your Own AI Agent Harness in C# we built one from scratch. In From dotnet run to Foundry Hosted A… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Oct 19, 2026
.NET Blog: Bring Your Own Model to the GitHub Copilot SDK with C# https://t.co/5xjdkNO4GA Hi, I know, I keep coming back to the same theme on this blog: agent harnesses. In Build Your Own AI Agent Harness in C# we built one from scratch. In From dotnet run to Foundry Hosted A…
Visual Studio Blog: Organize and revisit tabs with the keyboard https://t.co/evPVQhsfor When you’re moving between an implementation, its tests, and a related interface, the order of your open tabs can become a useful part of the task. But arranging that order and returning to… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Oct 19, 2026
Visual Studio Blog: Organize and revisit tabs with the keyboard https://t.co/evPVQhsfor When you’re moving between an implementation, its tests, and a related interface, the order of your open tabs can become a useful part of the task. But arranging that order and returning to…
.NET 11.0 Release Candidate 2: Ein paar neue Features und ein paar Breaking Changes kurz vor Fertigstellung https://t.co/LrRmPiPCLw @dotnet #Dotnet — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Oct 17, 2026
.NET 11.0 Release Candidate 2: Ein paar neue Features und ein paar Breaking Changes kurz vor Fertigstellung https://t.co/LrRmPiPCLw @dotnet #Dotnet
Visual Studio Blog: Today I will… Modernize a .NET application https://t.co/Bt1O3doZn6 Today I will modernize a .NET Framework application to .NET 10 using the GitHub Copilot modernization tooling built-in to Visual Studio. The tooling helps us upgrade applications r… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 21, 2026
Visual Studio Blog: Today I will… Modernize a .NET application https://t.co/Bt1O3doZn6 Today I will modernize a .NET Framework application to .NET 10 using the GitHub Copilot modernization tooling built-in to Visual Studio. The tooling helps us upgrade applications r…
Fachveröffentlichung: Grenzen setzen: Erweiterung EFCORE.CHECKCONSTRAINTS für Entity Framework Core https://t.co/hYevyBnDVz Die Erweiterung EFCore.CheckConstraints bringt in .NET mitgelieferte Validierungsannotationen als Constraints in die Datenbank. — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 19, 2026
Fachveröffentlichung: Grenzen setzen: Erweiterung EFCORE.CHECKCONSTRAINTS für Entity Framework Core https://t.co/hYevyBnDVz Die Erweiterung EFCore.CheckConstraints bringt in .NET mitgelieferte Validierungsannotationen als Constraints in die Datenbank.
Fachveröffentlichung: .NET 11.0 Preview 7 bringt viele Neuigkeiten und Breaking Changes https://t.co/s435OVHKfG Die siebte Preview bringt abermals eine Spracherweiterung für C#, verbesserte Komprimierungs-APIs und neue Features für Blazor. — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 14, 2026
Fachveröffentlichung: .NET 11.0 Preview 7 bringt viele Neuigkeiten und Breaking Changes https://t.co/s435OVHKfG Die siebte Preview bringt abermals eine Spracherweiterung für C#, verbesserte Komprimierungs-APIs und neue Features für Blazor.
.NET Blog: Routing and Failover for https://t.co/o19LcHXMJf https://t.co/rvi63N3zYh As AI adoption scales, cost, uptime, and latency become first-class constraints on application architecture. Routing between models or providers is a lever on all three at once. These new … — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 13, 2026
.NET Blog: Routing and Failover for https://t.co/o19LcHXMJf https://t.co/rvi63N3zYh As AI adoption scales, cost, uptime, and latency become first-class constraints on application architecture. Routing between models or providers is a lever on all three at once. These new …
.NET Blog: Instructions Hygiene – What Frontier Models Still Need You to Say https://t.co/IC4xVhI6XR Instructions files have a habit of growing in only one direction. A model makes a mistake, so somebody adds a rule. A tool changes, so somebody adds a workaround. A new model … — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 12, 2026
.NET Blog: Instructions Hygiene – What Frontier Models Still Need You to Say https://t.co/IC4xVhI6XR Instructions files have a habit of growing in only one direction. A model makes a mistake, so somebody adds a rule. A tool changes, so somebody adds a workaround. A new model …
.NET Blog: .NET 11 Preview 7 is now available! https://t.co/LZJIYi5fGf Today, we are excited to announce the seventh preview release of .NET 11! This release includes improvements across libraries, the .NET Runtime, SDK, C#, https://t.co/H2pTCh2keY Core, .NET MAUI, Entity Fram… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 11, 2026
.NET Blog: .NET 11 Preview 7 is now available! https://t.co/LZJIYi5fGf Today, we are excited to announce the seventh preview release of .NET 11! This release includes improvements across libraries, the .NET Runtime, SDK, C#, https://t.co/H2pTCh2keY Core, .NET MAUI, Entity Fram…
.NET Blog: .NET and .NET Framework August 2026 servicing releases updates https://t.co/hqspXDBbQU Welcome to our combined .NET servicing updates for August 2026. Let’s get into the latest release of .NET and .NET Framework. Here’s a quick overview of what’s new in our servicin… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 11, 2026
.NET Blog: .NET and .NET Framework August 2026 servicing releases updates https://t.co/hqspXDBbQU Welcome to our combined .NET servicing updates for August 2026. Let’s get into the latest release of .NET and .NET Framework. Here’s a quick overview of what’s new in our servicin…
Visual Studio Blog: Today I will… manage Git Submodules without leaving the IDE https://t.co/tC99Pczb1g If you’ve worked with Git submodules for any length of time, you probably have a love-hate relationship with them. They’re genuinely useful for pulling a shared library, an… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 11, 2026
Visual Studio Blog: Today I will… manage Git Submodules without leaving the IDE https://t.co/tC99Pczb1g If you’ve worked with Git submodules for any length of time, you probably have a love-hate relationship with them. They’re genuinely useful for pulling a shared library, an…
Fachveröffentlichung: Union Types in C# 15.0 https://t.co/WJ7oCa6e5j In der fünfzehnten Version von C# gibt es endlich die lang ersehnten Discriminated Unions in Form von Union Types. Damit kann ein Datentyp genau einen von mehreren definierten Typen enthalten, ohne dass diese … — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 11, 2026
Fachveröffentlichung: Union Types in C# 15.0 https://t.co/WJ7oCa6e5j In der fünfzehnten Version von C# gibt es endlich die lang ersehnten Discriminated Unions in Form von Union Types. Damit kann ein Datentyp genau einen von mehreren definierten Typen enthalten, ohne dass diese …
.NET Blog: Test reporting in Microsoft.Testing.Platform: from red build to root cause https://t.co/He1RtkLfKg When a test fails in CI, “the build is red” is only the starting point. The useful questions are whether this change caused the failure, whether the test has failed be… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 6, 2026
.NET Blog: Test reporting in Microsoft.Testing.Platform: from red build to root cause https://t.co/He1RtkLfKg When a test fails in CI, “the build is red” is only the starting point. The useful questions are whether this change caused the failure, whether the test has failed be…
.NET Blog: Beyond Chat: live Speech-to-Text with Foundry Local and C# https://t.co/9xqqnhzyWe A year ago, I wrote a .NET Blog post about running GPT-OSS locally with Ollama and C#. That sample used IChatClient from https://t.co/wMaMtW2RuF to build one of the most familiar Loca… — Dr. Holger Schwichtenberg (@DOTNETDOKTOR) Aug 4, 2026
.NET Blog: Beyond Chat: live Speech-to-Text with Foundry Local and C# https://t.co/9xqqnhzyWe A year ago, I wrote a .NET Blog post about running GPT-OSS locally with Ollama and C#. That sample used IChatClient from https://t.co/wMaMtW2RuF to build one of the most familiar Loca…