Jürgen Gutsch
@juergengutsch.bsky.social
Software Engineer, AppSec and QA Responsible at YOO AG,
.NET developer for 20+ years,
former Microsoft MVP, author, and blogger.
.NET developer for 20+ years,
former Microsoft MVP, author, and blogger.
Every Microsoft Agent Framework tutorial these days:
* Create the app
* Add prerelease packages
* Copy the demo code
* Set configuration
* dotnet run
* fail 🤬
@microsoftlearn.bsky.social Please pin the package versions in all blog posts and tutorials to the version that was used in the demo.
* Create the app
* Add prerelease packages
* Copy the demo code
* Set configuration
* dotnet run
* fail 🤬
@microsoftlearn.bsky.social Please pin the package versions in all blog posts and tutorials to the version that was used in the demo.
December 19, 2025 at 7:18 AM
Every Microsoft Agent Framework tutorial these days:
* Create the app
* Add prerelease packages
* Copy the demo code
* Set configuration
* dotnet run
* fail 🤬
@microsoftlearn.bsky.social Please pin the package versions in all blog posts and tutorials to the version that was used in the demo.
* Create the app
* Add prerelease packages
* Copy the demo code
* Set configuration
* dotnet run
* fail 🤬
@microsoftlearn.bsky.social Please pin the package versions in all blog posts and tutorials to the version that was used in the demo.
Reposted by Jürgen Gutsch
🎁 Aspire 13.1 just dropped… and it quietly fixes a lot of stuff:
• Real HTTPS in local dev
• Built-in AI agent support
• New ASP.NET + React starter
• Dashboard finally shows what you need
Holiday shipping, but make it better 👀
devblogs.microsoft.com/aspire/aspir...
#aspire #devtools #ai
• Real HTTPS in local dev
• Built-in AI agent support
• New ASP.NET + React starter
• Dashboard finally shows what you need
Holiday shipping, but make it better 👀
devblogs.microsoft.com/aspire/aspir...
#aspire #devtools #ai
Aspire 13.1 - Our holiday gift to you
Aspire 13.1 adds first-class AI agent support, CLI MCP integration, dashboard improvements, Azure enhancements, and end-to-end HTTPS for local development.
devblogs.microsoft.com
December 17, 2025 at 10:27 PM
🎁 Aspire 13.1 just dropped… and it quietly fixes a lot of stuff:
• Real HTTPS in local dev
• Built-in AI agent support
• New ASP.NET + React starter
• Dashboard finally shows what you need
Holiday shipping, but make it better 👀
devblogs.microsoft.com/aspire/aspir...
#aspire #devtools #ai
• Real HTTPS in local dev
• Built-in AI agent support
• New ASP.NET + React starter
• Dashboard finally shows what you need
Holiday shipping, but make it better 👀
devblogs.microsoft.com/aspire/aspir...
#aspire #devtools #ai
Good Morning Swiss Friends and wine lovers
A co-worker is looking for investors for his wine cooperative. If you are interested in supporting him and getting complimentary wine back, have a look at this page: [in German] offline-wein.ch/investieren
A co-worker is looking for investors for his wine cooperative. If you are interested in supporting him and getting complimentary wine back, have a look at this page: [in German] offline-wein.ch/investieren
Was passiert mit Deinem Kapital, wann fließt der Zins, wie bleibst Du im Loop? Hier sind die Short Answers.
offline-wein.ch
December 16, 2025 at 7:03 AM
Good Morning Swiss Friends and wine lovers
A co-worker is looking for investors for his wine cooperative. If you are interested in supporting him and getting complimentary wine back, have a look at this page: [in German] offline-wein.ch/investieren
A co-worker is looking for investors for his wine cooperative. If you are interested in supporting him and getting complimentary wine back, have a look at this page: [in German] offline-wein.ch/investieren
Reposted by Jürgen Gutsch
Big news in #AppSec: the #OWASP Top 10 2025 is now available! I'm part of the project team and ALL OF US want every dev, security engineer, and leader to read it (please).
https://twp.ai/E6ClNO
1/5
https://twp.ai/E6ClNO
1/5
December 12, 2025 at 6:50 PM
Big news in #AppSec: the #OWASP Top 10 2025 is now available! I'm part of the project team and ALL OF US want every dev, security engineer, and leader to read it (please).
https://twp.ai/E6ClNO
1/5
https://twp.ai/E6ClNO
1/5
The EF Core Power Tools saves me hours. Thanks to @erikej.bsky.social for building this great VS Extension:
marketplace.visualstudio.com/items?itemNa...
marketplace.visualstudio.com/items?itemNa...
EF Core Power Tools - Visual Studio Marketplace
Extension for Visual Studio - Useful design-time DbContext and database features, added to the Visual Studio Solution Explorer context menu.
When right-clicking on a C# project, the following context...
marketplace.visualstudio.com
December 9, 2025 at 1:30 PM
The EF Core Power Tools saves me hours. Thanks to @erikej.bsky.social for building this great VS Extension:
marketplace.visualstudio.com/items?itemNa...
marketplace.visualstudio.com/items?itemNa...
I like brainstorming with Copilot as well, before letting it code. I'm defining the requirement, asking for possible solutions, reviewing the proposals, discussing the best one with it, and sometimes, adjusting proposals and asking for an implementation plan.
December 6, 2025 at 11:07 AM
I like brainstorming with Copilot as well, before letting it code. I'm defining the requirement, asking for possible solutions, reviewing the proposals, discussing the best one with it, and sometimes, adjusting proposals and asking for an implementation plan.
Working with Copilot is like: Defining the requirement, reviewing the implementation, requesting changes, reviewing, requesting simplification, reviewing, running it, trying it, requesting changes, reviewing, running it, trying it, accepting it, and committing the change.
December 6, 2025 at 10:59 AM
Working with Copilot is like: Defining the requirement, reviewing the implementation, requesting changes, reviewing, requesting simplification, reviewing, running it, trying it, requesting changes, reviewing, running it, trying it, accepting it, and committing the change.
Also, wise-coding makes me a bit lazy. I'm stopping thinking about how to implement, I'm reviewing what Copilot does and accepting it or requesting changes.
It's like pair programming, where I am not the person who codes, but the person who discusses with the coder.
It's like pair programming, where I am not the person who codes, but the person who discusses with the coder.
December 6, 2025 at 10:51 AM
Also, wise-coding makes me a bit lazy. I'm stopping thinking about how to implement, I'm reviewing what Copilot does and accepting it or requesting changes.
It's like pair programming, where I am not the person who codes, but the person who discusses with the coder.
It's like pair programming, where I am not the person who codes, but the person who discusses with the coder.
Programming complex things with GH Copilot feels like stepping back in time. It feels just as productive as programming simple stuff as a junior developer.
December 6, 2025 at 10:47 AM
Programming complex things with GH Copilot feels like stepping back in time. It feels just as productive as programming simple stuff as a junior developer.
Reposted by Jürgen Gutsch
Introducing Aspire - Modern app development made easy
YouTube video by Aspire
youtu.be
November 18, 2025 at 2:51 PM
Reposted by Jürgen Gutsch
#ASPNETCore 10 und #VS2026 bringen richtig frischen Wind in die Webentwicklung...
- Blazor schneller stabiler besseres Reconnect
- Minimal APIs mit Validation und Streaming
- bessere OpenAPI und Passkeys für Identity
Diesen Freitag um 20:30 Uhr auf Twitch.
- Blazor schneller stabiler besseres Reconnect
- Minimal APIs mit Validation und Streaming
- bessere OpenAPI und Passkeys für Identity
Diesen Freitag um 20:30 Uhr auf Twitch.
November 17, 2025 at 2:12 PM
#ASPNETCore 10 und #VS2026 bringen richtig frischen Wind in die Webentwicklung...
- Blazor schneller stabiler besseres Reconnect
- Minimal APIs mit Validation und Streaming
- bessere OpenAPI und Passkeys für Identity
Diesen Freitag um 20:30 Uhr auf Twitch.
- Blazor schneller stabiler besseres Reconnect
- Minimal APIs mit Validation und Streaming
- bessere OpenAPI und Passkeys für Identity
Diesen Freitag um 20:30 Uhr auf Twitch.
Reposted by Jürgen Gutsch
Aspire 13 – Aspireify anything | by Maddy Montaquila
buff.ly/PiaeBa0
#aspire #dotnet #cloud #cloudnative #mcp #ai #javascript #python
buff.ly/PiaeBa0
#aspire #dotnet #cloud #cloudnative #mcp #ai #javascript #python
Aspire 13 - Aspireify anything
Aspire 13 is here with revamped JS and Python experiences, new AI-focused grations, and a new iteration of deployment tooling.
buff.ly
November 14, 2025 at 5:00 PM
Aspire 13 – Aspireify anything | by Maddy Montaquila
buff.ly/PiaeBa0
#aspire #dotnet #cloud #cloudnative #mcp #ai #javascript #python
buff.ly/PiaeBa0
#aspire #dotnet #cloud #cloudnative #mcp #ai #javascript #python
Reposted by Jürgen Gutsch
Get Ready for .NET Conf 2025!
Get Ready for .NET Conf 2025! - .NET Blog
The biggest .NET event of the year is just one week away! Join us November 11-13 for .NET 10 and Visual Studio 2026, plus a Student Zone on November 14th.
ift.tt
November 5, 2025 at 8:22 AM
Get Ready for .NET Conf 2025!
Reposted by Jürgen Gutsch
Blogged: Implement a secure MCP server using OAuth DPoP and Duende identity provider
damienbod.com/2025/11/03/i...
#aspnetcore #mcp #llm #duende #openidconnect #oidc #oauth #dpop #jwt #openai #ai
damienbod.com/2025/11/03/i...
#aspnetcore #mcp #llm #duende #openidconnect #oidc #oauth #dpop #jwt #openai #ai
Implement a secure MCP server using OAuth DPoP and Duende identity provider
Code: This post demonstrates how an ASP.NET Core application can connect to a secure MCP server using OpenID Connect and OAuth. Both applications use Duende IdentityServer as the identity provider.…
damienbod.com
November 3, 2025 at 6:49 AM
Blogged: Implement a secure MCP server using OAuth DPoP and Duende identity provider
damienbod.com/2025/11/03/i...
#aspnetcore #mcp #llm #duende #openidconnect #oidc #oauth #dpop #jwt #openai #ai
damienbod.com/2025/11/03/i...
#aspnetcore #mcp #llm #duende #openidconnect #oidc #oauth #dpop #jwt #openai #ai
Reposted by Jürgen Gutsch
Reposted by Jürgen Gutsch
ICYMI - Announcing .NET 10 Release Candidate 2 - .NET Blog
.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, #ASPNETCore, Blazor, .NET MAUI, and more.
hubs.li/Q03PcXfp0
.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, #ASPNETCore, Blazor, .NET MAUI, and more.
hubs.li/Q03PcXfp0
October 22, 2025 at 2:06 PM
ICYMI - Announcing .NET 10 Release Candidate 2 - .NET Blog
.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, #ASPNETCore, Blazor, .NET MAUI, and more.
hubs.li/Q03PcXfp0
.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, #ASPNETCore, Blazor, .NET MAUI, and more.
hubs.li/Q03PcXfp0
Reposted by Jürgen Gutsch
Friedrich Merz: Was passiert hier gerade? thomasbandt.com/gedanken/cmh...
Friedrich Merz: Was passiert hier gerade?
Während ein paar wackere Abgeordnete in den letzten Wochen des vorherigen Bundestages noch versuchten, ein AfD...
thomasbandt.com
October 21, 2025 at 8:53 AM
Friedrich Merz: Was passiert hier gerade? thomasbandt.com/gedanken/cmh...
Reposted by Jürgen Gutsch
In today's partner podcast, Steve Smith (@ardalis) and @MadsKristensen discuss the new version of Visual Studio, #VisualStudio2026! Listen in: msft.it/63324s0Zv0
October 14, 2025 at 10:45 PM
In today's partner podcast, Steve Smith (@ardalis) and @MadsKristensen discuss the new version of Visual Studio, #VisualStudio2026! Listen in: msft.it/63324s0Zv0
Reposted by Jürgen Gutsch
Announcing the .NET Security Group!
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with us.
devblogs.microsoft.com/dotnet/annou...
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with us.
devblogs.microsoft.com/dotnet/annou...
Announcing the .NET Security Group - .NET Blog
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with Microsoft.
devblogs.microsoft.com
October 15, 2025 at 12:02 AM
Announcing the .NET Security Group!
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with us.
devblogs.microsoft.com/dotnet/annou...
Learn how to join the .NET Security Group for early access to CVE information and help deliver security patches to your .NET distribution simultaneously with us.
devblogs.microsoft.com/dotnet/annou...
Reposted by Jürgen Gutsch
Microsoft just dropped a modular, open-source toolkit for building AI agents in Python + #dotnet 🎯
Define goals, manage memory, route tasks, and evaluate performance—all in one framework.
msft.it/63324sNeii
Define goals, manage memory, route tasks, and evaluate performance—all in one framework.
msft.it/63324sNeii
October 15, 2025 at 12:30 AM
Microsoft just dropped a modular, open-source toolkit for building AI agents in Python + #dotnet 🎯
Define goals, manage memory, route tasks, and evaluate performance—all in one framework.
msft.it/63324sNeii
Define goals, manage memory, route tasks, and evaluate performance—all in one framework.
msft.it/63324sNeii
Reposted by Jürgen Gutsch
I just created a #React Security Cheat Sheet! Download it for free and sign up for my newsletter at the same time, here: https://twp.ai/9PVVy6
October 15, 2025 at 12:24 AM
I just created a #React Security Cheat Sheet! Download it for free and sign up for my newsletter at the same time, here: https://twp.ai/9PVVy6
Reposted by Jürgen Gutsch
Announcing .NET 10 Release Candidate 2
Focus on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.
Learn more: devblogs.microsoft.com/dotnet/dotne...
Focus on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.
Learn more: devblogs.microsoft.com/dotnet/dotne...
Announcing .NET 10 Release Candidate 2 - .NET Blog
.NET 10 Release Candidate 2 focuses on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.
devblogs.microsoft.com
October 15, 2025 at 12:05 AM
Announcing .NET 10 Release Candidate 2
Focus on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.
Learn more: devblogs.microsoft.com/dotnet/dotne...
Focus on final quality, reliability, and stabilization across the runtime, SDK, libraries, ASP.NET Core, Blazor, .NET MAUI, and more.
Learn more: devblogs.microsoft.com/dotnet/dotne...
Reposted by Jürgen Gutsch
Yesterday we did a 7+ hour stream on AspiriFridays where we took excalidraw and made it work with aspire.
This is also the first time we have chapters in any episode! (thanks @maddymontaquila.net!).
In the end, we got it working!
youtu.be/rrurHUfzyTY
#aspire #dotnet @aspire.dev
This is also the first time we have chapters in any episode! (thanks @maddymontaquila.net!).
In the end, we got it working!
youtu.be/rrurHUfzyTY
#aspire #dotnet @aspire.dev
AspiriFridays - Excalidraw
YouTube video by Aspire
youtu.be
October 4, 2025 at 7:57 PM
Yesterday we did a 7+ hour stream on AspiriFridays where we took excalidraw and made it work with aspire.
This is also the first time we have chapters in any episode! (thanks @maddymontaquila.net!).
In the end, we got it working!
youtu.be/rrurHUfzyTY
#aspire #dotnet @aspire.dev
This is also the first time we have chapters in any episode! (thanks @maddymontaquila.net!).
In the end, we got it working!
youtu.be/rrurHUfzyTY
#aspire #dotnet @aspire.dev
Reposted by Jürgen Gutsch
Happy Monday 💫 Now that 9.5 has shipped, we posted an update about our roadmap on GitHub calling out what we've completed and what's in progress - let us know what you think! github.com/dotnet/aspir...
UPDATE! Aspire Roadmap '25 - 9.5 has shipped! · dotnet aspire · Discussion #11720
Hi everyone! Thank you so much for your engagement and feedback on the Roadmap we posted a few months. We wanted to share an update on what’s landed, what’s actively in flight, and where we haven’t...
github.com
September 29, 2025 at 8:50 PM
Happy Monday 💫 Now that 9.5 has shipped, we posted an update about our roadmap on GitHub calling out what we've completed and what's in progress - let us know what you think! github.com/dotnet/aspir...
Reposted by Jürgen Gutsch
Announcing Aspire 9.5
Announcing Aspire 9.5 - .NET Blog
Aspire 9.5 adds the preview 'aspire update' command, single-file AppHost, richer CLI and dashboard UX, and new integrations for AI, DevTunnels, and more.
ift.tt
September 26, 2025 at 8:22 AM
Announcing Aspire 9.5