By Tim Anderson
Publication Date: 2026-04-08 14:43:00
Microsoft has set an end-of-support date of April 7, 2027, for ASP.NET Core 2.3, the only supported version on .NET Framework, even though .NET Framework (and the original ASP.NET) will continue to be supported.
“After that date, Microsoft will no longer provide security patches, bug fixes, or technical support for ASP.NET Core 2.3,” said principal product manager Daniel Roth. Users are advised to upgrade to modern ASP.NET on .NET 10.
The .NET Framework is the Windows-only version of .NET and is still maintained, though focused on stability rather than major new features. Version 4.8.1 is the latest release, which added native support for Arm64 as well as accessibility improvements for Windows Forms and WPF (Windows Presentation Foundation) applications. It is classified as a component of Windows and shares the Windows support lifecycle.
ASP.NET Core was introduced at the same time as .NET Core, the current…