ASP.NET Core

ASP.NET Core is an open-source modular web-application framework. It is a redesign of ASP.NET that unites the previously separate ASP.NET MVC and ASP.NET Web API into a single programming model. Despite being a new framework, built on a new web stack, it does have a high degree of concept compatibility with ASP.NET. The ASP.NET Core framework supports side-by-side versioning so that different applications being developed on a single machine can target different versions of ASP.NET Core. This was not possible with previous versions of ASP.NET. ASP.NET Core initially ran on both the Windows-only .NET Framework and the cross-platform .NET. However, support for the .NET Framework was dropped beginning with ASP.Net Core 3.0.

Blazor is a recent, optional component that supports WebAssembly. Since version 5.0, Blazor has dropped support for some older web browsers, including Microsoft Edge Legacy and Internet Explorer 11.

Release history Version numberRelease dateEnd of supportSupported Visual Studio Version(s)2016-06-272019-06-27Visual Studio 2015, 20172016-11-182019-06-27Visual Studio 2015, 20172017-08-142018-10-01Visual Studio 2017 long-term support2018-05-302021-08-21Visual Studio 20172018-12-042019-12-23Visual Studio 2017 15.9 and 2019 16.0 preview 1 long-term support2025-01-142027-04-07Visual Studio 20172019-09-232020-03-03Visual Studio 2017 and 2019 long-term support2019-12-032022-12-03Visual Studio 20192020-11-102022-05-08Visual Studio 2019 16.8 long-term support2021-11-082024-11-08Visual Studio 2022 standard-term support2022-11-082024-05-14Visual Studio 2022 long-term support2023-11-142026-11-10Visual Studio 2022 standard-term support2024-11-122026-11-10Visual Studio 2022 long-term support2025-11-112028-11-14Visual Studio 2026 Notes:

Naming Originally deemed ASP.NET vNext, the framework was going to be called ASP.NET 5 when ready. However, in order to avoid implying it is an update to the existing ASP.NET framework, Microsoft later changed the name to ASP.NET Core at the 1.0 release.

Features No-compile developer experience (i.e. compilation is continuous, so that the developer does not have to invoke the compilation command) Modular framework distributed as NuGet packages Cloud-optimized runtime (optimized for the internet) Host-agnostic via Open Web Interface for .NET (OWIN) support – runs in IIS or standalone A unified story for building web UI and web APIs (i.e. both the same) A cloud-ready environment-based configuration system A lightweight and modular HTTP request pipeline Build and run cross-platform ASP.NET Core apps on Windows, Mac, and Linux Open-source and community-focused Side-by-side app versioning when targeting .NET In-built support for dependency injection Enhanced Security compared to Asp.Net

Components Entity Framework (EF) Core Identity Core MVC Core Razor Core SignalR Blazor Kestrel web server

ASP.NET Core

Bron en licentie