.NET 8: Container Braking Change: Multi-platform Container Tags are Linux-only

The .NET 8 multi-platform container tags have been updated to be Linux-only. This means that the latest, <major>.<minor>, and <major>.<minor>.<patch> tags are Linux-only going forward.

Previously if we pull a .NET image with a multi-platform tag from a Windows machine, we would get a Windows image (if the tag supports the Windows platform), but not anymore.

For example: if we run the following in a pipeline using windows-latest agent, we will get an error.

FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS base
 
# ...
 
FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build
 
# ...

If we want to run it on a windows agent, then we need to explicitly update tag usage to indicate which Windows version we're targeting, something like the following.

FROM mcr.microsoft.com/dotnet/aspnet:8.0-nanoserver-ltsc2022 AS base
 
# ...
 
FROM mcr.microsoft.com/dotnet/sdk:8.0-nanoserver-ltsc2022 AS build
 
# ...

We can select a Windows image name based on our requirement: Windows Server Core vs Nanoserver.

Official announcement:
   Multi-platform container tags are Linux-only

Hope this helps.

Happy Coding.

Regards,
Jaliya