.NET Framework 4.8.1 is considered the last major update for the old 4.x lineage.
It is important to clarify that as of May 2026, and has not been announced by Microsoft. The final major release of the traditional legacy framework is .NET Framework 4.8.1 , which was launched in August 2022. net framework 49 offline installer for windows
Microsoft shifted its focus from the Windows-only ".NET Framework" to the cross-platform ".NET" (formerly .NET Core) starting with the release of .NET 5 in 2020. net framework 49 offline installer for windows