Support for .NET 8 ends on 10 November 2026—upgrade your apps to .NET 10

[dthaler]

Support for .NET 8 will end on 10 November 2026. Please transition to .NET 10 by that date.  

Your Azure Function Apps will continue to operate, but security updates will no longer be provided, and support for .NET 8 on Azure Functions will end. Running Function Apps on an unsupported runtime or language version might lead to security and performance issues.

Upgrade to .NET 10 before 10 November 2026 to remain on a supported version. Learn more about Azure Functions stack version support.

Recommended action 

To avoid potential security vulnerabilities, minimize risk for your Azure Functions apps, and take advantage of latest features, you must take action
based on your current configuration:

If your app is using the in-process model:

Migrate your app to the isolated worker model, then upgrade to .NET 10. For guidance, see:
• <Migrate C# Apps from In-Process to Isolated Worker Model>
• <Update Language Versions in Azure Functions>

If your app is already using the isolated worker model:

Upgrade your app directly to .NET 10 by following
• <Update Language Versions in Azure Functions>

Complete all required upgrades and ensure your app has moved off the in-process model before 10 November 2026.

[shashankshirur]

I'd like to pick this up.

Plan: bump TargetFramework to net10.0 in NotificationSystem.csproj, update the Functions Worker / related NuGet packages to compatible versions, and run the existing test suite locally to catch anything that breaks. This is my first time in NotificationSystem, so let me know if I'm missing anything.