As of April 2026, there is no official ".NET Framework 4.9" . The final major release of the classic .NET Framework is version 4.8.1
Since "4.9" does not exist, here are the most recent official equivalents for Windows users: net+framework+49+offline+installer+for+windows+exclusive
Microsoft’s shift toward .NET 5, 6, 7, and 8 (which are cross-platform) has left the legacy .NET Framework in a state of "maintenance mode." Consequently, unofficial aggregators have compiled "4.9" bundles to simplify deployment for legacy systems running Windows 10 LTSC, Windows Server 2019, and Windows 11. As of April 2026, there is no official "
"This application requires .NET Framework 4.9." As of April 2026