What's New with .NET 9?!

Exciting times are ahead because today, we're diving into what's coming with .NET 9!

So, if you're wondering whether it's worth upgrading your applications to .NET 9 or waiting for the next long-term support release, .NET 10, next year—you're in the right place!

I spent countless hours using the .NET 9 preview and release candidate versions, and I hope this overview helps you get familiar with .NET 9.

00:00 .NET 9 Introduction
01:02 The Binary Formatter
01:47 New LINQ Methods
02:37 C# 13
03:27 ASP.NET Core
06:54 OpenAPI
07:33 Hybrid Cache
08:50 .NET MAUI
09:54 Entity Framework Core
10:55 Performance Improvements
11:55 .NET 9 Conclusion

🔥 C#/.NET Bootcamp: The Fundamentals & more (Code FRIENDS10 for 10% OFF)*

📌 .NET Developer Roadmap

➡️ C# 13

➡️ ASP.NET Core 9.0

➡️ .NET SDK 9.0

➡️ .NET MAUI 9.0

➡️ Entity Framework Core 9.0

➡️ Entity Framework Core 9: Azure Cosmos DB Provider Improvements

🛎️ Performance Improvements in .NET 9

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[balazs]

Hi Claudio, thanks for sharing the information. The Blazor authentication topic deserves a dedicated video.
The new API looks promising and makes managing the authentication state easier across different render modes.

[ronnyek]

whether youw ant to stick with .net 8 or upgrade to .net 9, just remember .net 9 is not a LTS release. If you are building large codebases etc... probably not a fantstic idea to jump to 9 super quick. If you are good for being able to upgrade frameworks, probably not a big deal

[carlcodes]

Great video Claudio, fantastic summary of all the new features

[JJMV-slib]

Thank you for this video. I'm not sure but, I think .NET 9 comes with AI features as well; if you don't mind, could you please make a video about this? thanks again!

[tofu]

Nice video thanks, I cross my fingers for a maui-blazor-web template with authentication

[Linkario]

I'm really curious if MAUI becomes less buggy with .Net9. I'm not using it for anything productive yet because the issues coming along are a slow down and a risk

[Biometrics]

I am hoping like everyone else that NET 9 will fix the quirks in NET MAUI. Though I love NET MAUI. I also find MAUI to be very erratic on Android. For instance, I found it just impossible to select an image / photo in an Android App that is developed in NET MAUI. I am currently using NET 8.

[ClaudioBernasconi]

What feature are you looking forward to the most in .NET 9? 🤔

[guillermomazzari]

Thanks for sharing! Please, show the new template for blazor hybrid!