.Net has always been hugely backwards compatible and breaking e.g. .Net 8 apps which will run out of support in November 2026. How is constantly needing to update .Net any different from constantly needing to update any other part of Windows?
replyIdeally they would just install newer .Net releases side by side and uninstall .Net releases as they drop out of support.
Microsoft promises things included with Windows will be supported ~forever. Adding modern .NET into the mix would break this promise and add more churn.
replyAutomatically uninstalling .NET runtimes would break apps, and Microsoft will be to blame, not app vendors who failed to upgrade to the latest .NET. An app built for .NET 8 can run on .NET 10, assuming no backwards-incompatible changes in the runtime and system libraries, but this behavior is opt-in.