Microsoft announces end of support for ASP.NET Core 2.3

Microsoft’s ASP.NET Core 2.3, a version of the company’s open source web development framework for .NET and C#, will reach end of life support on April 7, 2027.

Following that date, Microsoft will no longer provide bug fixes, technical support, or security patches for ASP.NET Core 2.3, the company announced on April 7, exactly a year before the cessation date. ASP.NET Core 2.3 packages—the latest patched versions only—are supported currently on .NET Framework, following the support cycle for those .NET Framework versions. After April 7, 2027, this support will end regardless of the .NET Framework version in use, according to Microsoft. Support for ASP.NET Core 2.3 packages including the Entity Framework 2.3 packages will end on the same date.

Microsoft recommends upgrading to a currently supported version of .NET, such as .NET 10 LTS. To help with the upgrade process, Microsoft recommends using GitHub Copilot modernization, which provides AI-powered assistance in planning and executing migrations to a modern .NET version.