Since there is no official 4.9 release, the official .NET Framework 4.8.1 download is the correct choice for users needing the latest "4.x" features.
Use .NET Framework 4.8.1 . It remains supported as a component of the Windows OS. .NET Framework 4.9 Offline Installer for Windows
: You can find the latest runtime and developer packs on the Official .NET Download Page . Since there is no official 4
pre-installed. You can verify this by searching for "Turn Windows features on or off" in your Start menu. Download the latest official Framework: If you truly need the last legacy version, you can find the Official .NET Framework 4.8.1 Offline Installer on the Microsoft website. Modern .NET: If you are a developer looking for the actual , you are looking for : You can find the latest runtime and
This is the likely target if an application specifically asks for ".NET Framework 4.x". It is included by default in Windows 11 and Windows 10 (22H2 and later), but you may need the offline installer for manual repairs or offline machines.