ASP.NET Core

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ASP.NET Core
[[Programmer|Original authorTemplate:Pluralize from text]]Microsoft
[[Programmer|DeveloperTemplate:Pluralize from text]].NET Foundation and the open source community
Initial releaseJune 7, 2016; 10 years ago (2016-06-07)
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Written inC#
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Operating systemWindows, macOS, Linux
PlatformCross-platform
TypeWeb framework
LicenseMIT License[1]
Websitedotnet.microsoft.com/apps/aspnet
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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.[2][3] 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.[4]

Blazor is a recent (optional) component to support WebAssembly and since version 5.0, it has dropped support for some old web browsers. While current Microsoft Edge works, the legacy version of it, i.e. "Microsoft Edge Legacy" and Internet Explorer 11 was dropped when you use Blazor.[5]

Release history

Version number Release date End of support Supported Visual Studio Version(s)
Unsupported: 1.0Page Template:Version/styles.css has no content. 2016-06-27 2019-06-27 Visual Studio 2015, 2017
Unsupported: 1.1Page Template:Version/styles.css has no content. 2016-11-18 2019-06-27 Visual Studio 2015, 2017
Unsupported: 2.0Page Template:Version/styles.css has no content. 2017-08-14 2018-10-01 Visual Studio 2017
Unsupported: 2.1Page Template:Version/styles.css has no content. long-term support 2018-05-30 2021-08-21[6][rel-note 1][rel-note 2] Visual Studio 2017
Unsupported: 2.2Page Template:Version/styles.css has no content. 2018-12-04[7] 2019-12-23[8] Visual Studio 2017 15.9 and 2019 16.0 preview 1
Supported: 2.3Page Template:Version/styles.css has no content. long-term support[9][rel-note 3] 2025-01-14[10] 2027-04-07[11] Visual Studio 2017
Unsupported: 3.0Page Template:Version/styles.css has no content. 2019-09-23[12] 2020-03-03[8] Visual Studio 2017 and 2019
Unsupported: 3.1Page Template:Version/styles.css has no content. long-term support 2019-12-03[13] 2022-12-03[8] Visual Studio 2019
Unsupported: 5.0Page Template:Version/styles.css has no content. 2020-11-10[14] 2022-05-08 Visual Studio 2019 16.8
Unsupported: 6.0Page Template:Version/styles.css has no content. long-term support 2021-11-08[15] 2024-11-08 Visual Studio 2022
Unsupported: 7.0Page Template:Version/styles.css has no content. standard-term support[16] 2022-11-08[17] 2024-05-14 Visual Studio 2022
Supported: 8.0Page Template:Version/styles.css has no content. long-term support[18] 2023-11-14[19] 2026-11-10 Visual Studio 2022
Supported: 9.0Page Template:Version/styles.css has no content. standard-term support[20] 2024-11-12[21] 2026-11-10 Visual Studio 2022
Latest version: 10.0Page Template:Version/styles.css has no content. long-term support[22] 2025-11-11[23] 2028-11-14 Visual Studio 2026
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Unsupported
Supported
Latest version
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Notes:

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  1. ^ Supported on .NET Framework until 2025-01-14
  2. ^ Reshipped as ASP.NET Core 2.3
  3. ^ Supported on .NET Framework only

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.[24]

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[25][26] – 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 [27]

Components

See also

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References

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  1. ^ Page Module:Citation/CS1/styles.css has no content."ASP.NET Core license". GitHub. Retrieved 2021-09-29.
  2. ^ Page Module:Citation/CS1/styles.css has no content."Choose between ASP.NET 4.x and ASP.NET Core". docs.microsoft.com. 10 April 2024.
  3. ^ Page Module:Citation/CS1/styles.css has no content.singh Satinder. "Introduction to ASP.NET Core". microsoft.com. Retrieved 10 July 2017.
  4. ^ Page Module:Citation/CS1/styles.css has no content."Introduction to ASP.NET Core". docs.microsoft.com.
  5. ^ Page Module:Citation/CS1/styles.css has no content."[Discussion] Updated Blazor browser support for .NET 5 · Issue #26475 · dotnet/aspnetcore". GitHub. Retrieved 2020-11-11.
  6. ^ Page Module:Citation/CS1/styles.css has no content."GitHub - dotnet/core: Home repository of .NET and .NET Core". October 20, 2019 – via GitHub.
  7. ^ Page Module:Citation/CS1/styles.css has no content."ASP.NET Blog | Announcing ASP.NET Core 2.2, available today!". ASP.NET Blog. December 4, 2018.
  8. ^ a b c Page Module:Citation/CS1/styles.css has no content.".NET Core and .NET 5 official support policy". Microsoft. Retrieved 2019-12-06.
  9. ^ Page Module:Citation/CS1/styles.css has no content."Announcing .NET 10".
  10. ^ https://www.nuget.org/packages/Microsoft.AspNetCore/2.3.0
  11. ^ Page Module:Citation/CS1/styles.css has no content.Roth, Daniel (2026-04-07). "ASP.NET Core 2.3 end of support announcement". .NET Blog. Retrieved 2026-04-07.
  12. ^ Page Module:Citation/CS1/styles.css has no content."ASP.NET Blog | ASP.NET Core and Blazor updates in .NET Core 3.0". ASP.NET Blog. September 23, 2019.
  13. ^ Page Module:Citation/CS1/styles.css has no content."ASP.NET Core updates in .NET Core 3.1". ASP.NET Blog. December 3, 2019.
  14. ^ Page Module:Citation/CS1/styles.css has no content.dotnet/aspnetcore, .NET Platform, 2020-11-11, retrieved 2020-11-11
  15. ^ Page Module:Citation/CS1/styles.css has no content."Announcing ASP.NET Core in .NET 6". .NET Blog. 2021-11-08. Retrieved 2021-11-19.
  16. ^ Page Module:Citation/CS1/styles.css has no content.".NET and .NET Core Support Policy". Microsoft. Retrieved 2024-10-02.
  17. ^ Page Module:Citation/CS1/styles.css has no content."Announcing ASP.NET Core in .NET 7". .NET Blog. 2022-11-08. Retrieved 2024-10-02.
  18. ^ Page Module:Citation/CS1/styles.css has no content.".NET and .NET Core Support Policy". Microsoft. Retrieved November 19, 2023.
  19. ^ Page Module:Citation/CS1/styles.css has no content."Announcing ASP.NET Core in .NET 8". .NET Blog. 2022-11-08. Retrieved 2023-11-19.
  20. ^ Page Module:Citation/CS1/styles.css has no content.".NET and .NET Core Support Policy". Microsoft. Retrieved November 12, 2024.
  21. ^ Page Module:Citation/CS1/styles.css has no content."Announcing NET 9". .NET Blog. 2024-11-12. Retrieved 2024-11-12.
  22. ^ Page Module:Citation/CS1/styles.css has no content.".NET and .NET Core Support Policy". Microsoft. Retrieved November 12, 2025.
  23. ^ Page Module:Citation/CS1/styles.css has no content."Announcing NET 9". .NET Blog. 2024-11-12. Retrieved 2025-11-13.
  24. ^ Page Module:Citation/CS1/styles.css has no content.Jeffrey T. Fritz. "ASP.NET 6 is dead - Introducing ASP.NET Core 1.0 and .NET Core 1.0". .NET Web Development and Tools Blog. Retrieved 20 January 2016.
  25. ^ Page Module:Citation/CS1/styles.css has no content."OWIN". ASP.NET 0.0.1 documentation. 17 September 2024.
  26. ^ Page Module:Citation/CS1/styles.css has no content."Roadmap". Github.
  27. ^ Page Module:Citation/CS1/styles.css has no content."ASP.NET vs ASP.NE CORE". ASP.NET VS. ASP.NET Core: The Ultimate Showdown. 17 February 2024.

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  • ASP.NET Core on GitHub

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