I have just upgraded this website from .NET 7 to .NET 8, and also the associated Azure function from .NET 6 in-process to .NET 8 isolated. Upgrading an app service (website) from .NET 7 (or 6) to .NET 8 is pretty straightforward and essentially just involves changing the target framework ...

It is relatively easy to remove the use of a Startup.cs file after converting a web project from .NET 5.0 to .NET 6.0. This post shows how I did it.

I have just updated this site from .NET 5.0 (apart from an associated Azure function which was still .NET Core 3.1) to .NET 6.0 (for both the site and the function).