Microsoft has begun decoupling one of its longest‑lived runtimes from the Windows image: starting with Windows 11 Insider Preview Build 27965, .NET Framework 3.5 will no longer be delivered as a built‑in “Optional Feature” (Feature on Demand) and must be obtained via a standalone/offline...
Microsoft quietly began removing the convenience of having .NET Framework 3.5 shipped inside Windows by switching the runtime to a standalone-install model for newer Windows 11 builds, a change that materially alters how legacy applications will be deployed and supported on future Windows...