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<h2 id="release-history">Release history</h2> <table><tbody><tr><th>Version Number</th><th>Release Date</th><th>End of Support</th><th>Supported Visual Studio Version(s)</th></tr><tr><td>Old version, not maintained: 1.0</td><td>2016-06-27</td><td>2019-06-27</td><td><a href="/facts/Visual_Studio_2015/omNe6Lej">Visual Studio 2015</a>, <a href="/facts/Visual_Studio_2017/omNe6Lej">2017</a></td></tr><tr><td>Old version, not maintained: 1.1</td><td>2016-11-18</td><td>2019-06-27</td><td>Visual Studio 2015, 2017</td></tr><tr><td>Old version, not maintained: 2.0</td><td>2017-08-14</td><td>2018-10-01</td><td>Visual Studio 2017</td></tr><tr><td>Old version, not maintained: 2.1 <a href="/facts/Long-term_support/0b0L8MKh">long-term support</a></td><td>2018-05-30</td><td>2021-08-21<a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a></td><td>Visual Studio 2017</td></tr><tr><td>Old version, not maintained: 2.2</td><td>2018-12-04<a class="footnote-ref" id="fnref:6" href="#fn:6"><sup>6</sup></a></td><td>2019-12-23<a class="footnote-ref" id="fnref:7" href="#fn:7"><sup>7</sup></a></td><td>Visual Studio 2017 15.9 and <a href="/facts/Visual_Studio_2019/omNe6Lej">2019</a> 16.0 preview 1</td></tr><tr><td>Old version, not maintained: 3.0</td><td>2019-09-23<a class="footnote-ref" id="fnref:8" href="#fn:8"><sup>8</sup></a></td><td>2020-03-03<a class="footnote-ref" id="fnref:9" href="#fn:9"><sup>9</sup></a></td><td>Visual Studio 2017 and 2019</td></tr><tr><td>Old version, not maintained: 3.1 <a href="/facts/Long-term_support/0b0L8MKh">long-term support</a></td><td>2019-12-03<a class="footnote-ref" id="fnref:10" href="#fn:10"><sup>10</sup></a></td><td>2022-12-03<a class="footnote-ref" id="fnref:11" href="#fn:11"><sup>11</sup></a></td><td>Visual Studio 2019</td></tr><tr><td>Old version, not maintained: 5.0</td><td>2020-11-10<a class="footnote-ref" id="fnref:12" href="#fn:12"><sup>12</sup></a></td><td>2022-05-08</td><td>Visual Studio 2019 16.8</td></tr><tr><td>Old version, not maintained: 6.0 <a href="/facts/Long-term_support/0b0L8MKh">long-term support</a></td><td>2021-11-08<a class="footnote-ref" id="fnref:13" href="#fn:13"><sup>13</sup></a></td><td>2024-11-08</td><td>Visual Studio 2022</td></tr><tr><td>Old version, not maintained: 7.0 standard-term support<a class="footnote-ref" id="fnref:14" href="#fn:14"><sup>14</sup></a></td><td>2022-11-08<a class="footnote-ref" id="fnref:15" href="#fn:15"><sup>15</sup></a></td><td>2024-05-14</td><td>Visual Studio 2022</td></tr><tr><td>Old version, still maintained: 8.0 long-term support<a class="footnote-ref" id="fnref:16" href="#fn:16"><sup>16</sup></a></td><td>2023-11-14<a class="footnote-ref" id="fnref:17" href="#fn:17"><sup>17</sup></a></td><td>2026-11-10</td><td>Visual Studio 2022</td></tr><tr><td>Latest version: 9.0 standard-term support<a class="footnote-ref" id="fnref:18" href="#fn:18"><sup>18</sup></a></td><td>2024-11-12<a class="footnote-ref" id="fnref:19" href="#fn:19"><sup>19</sup></a></td><td>2026-05-12</td><td>Visual Studio 2022</td></tr><tr><td colspan="4">Legend:Old version, not maintainedOld version, still maintainedLatest versionLatest preview versionFuture version</td></tr></tbody></table> <h2 id="naming">Naming</h2> <p>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.<a class="footnote-ref" id="fnref:20" href="#fn:20"><sup>20</sup></a> </p> <h2 id="features">Features</h2> <ul><li>No-compile developer experience (i.e. compilation is continuous, so that the developer does not have to invoke the compilation command)</li> <li>Modular framework distributed as <a href="/facts/NuGet/EzKUx5B2">NuGet</a> packages</li> <li>Cloud-optimized runtime (optimized for the internet)</li> <li>Host-agnostic via <a href="/facts/Open_Web_Interface_for_.NET/y3st9nns">Open Web Interface for .NET</a> (OWIN) support<a class="footnote-ref" id="fnref:21" href="#fn:21"><sup>21</sup></a><a class="footnote-ref" id="fnref:22" href="#fn:22"><sup>22</sup></a> – runs in <a href="/facts/Internet_Information_Services/nqmfJr3T">IIS</a> or standalone</li> <li>A unified story for building web UI and web APIs (i.e. both the same)</li> <li>A cloud-ready environment-based configuration system</li> <li>A lightweight and modular HTTP request pipeline</li> <li>Build and run cross-platform ASP.NET Core apps on Windows, Mac, and Linux</li> <li>Open-source and community-focused</li> <li>Side-by-side app versioning when targeting .NET</li> <li>In-built support for <a href="/facts/Dependency_injection/Vp9LdwhU">dependency injection</a></li> <li>Enhanced Security compared to Asp.Net <a class="footnote-ref" id="fnref:23" href="#fn:23"><sup>23</sup></a></li></ul> <h2 id="components">Components</h2> <ul><li><a href="/facts/Entity_Framework/20FoR2zr">Entity Framework (EF) Core</a></li> <li>Identity Core</li> <li><a href="/facts/ASP.NET_MVC/KFyeWXHx">MVC</a> Core</li> <li><a href="/facts/ASP.NET_Razor/JtSUR2SJ">Razor</a> Core</li> <li><a href="/facts/SignalR/UcFsp4eb">SignalR</a></li> <li><a href="/facts/Blazor/DflqmThl">Blazor</a></li> <li>Kestrel web server</li></ul> <h2 id="see-also">See also</h2> <ul> <li>Free and open-source software portal</li></ul> <ul><li><a href="/facts/.NET_Compiler_Platform/y2lksQ5d">.NET Compiler Platform</a></li> <li><a href="/facts/Mono_(software)/PlyeJxRS">Mono</a></li> <li><a href="/facts/Visual_Studio_Code/YsBDgKlK">Visual Studio Code</a></li></ul> <h2 id="external-links">External links</h2> Wikibooks has a book on the topic of: <i>.NET Development Foundation</i> <ul><li><a href="https://docs.microsoft.com/aspnet/core/">Official website</a> </li> <li><a href="https://github.com/aspnet/home">ASP.NET Core</a> on <a href="/facts/GitHub/n1hNCsc3">GitHub</a></li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Choose between ASP.NET 4.x and ASP.NET Core". docs.microsoft.com. 10 April 2024. <a href="https://docs.microsoft.com/en-us/aspnet/core/fundamentals/choose-aspnet-framework" target="_blank">https://docs.microsoft.com/en-us/aspnet/core/fundamentals/choose-aspnet-framework</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>singh Satinder. "Introduction to ASP.NET Core". microsoft.com. Retrieved 10 July 2017. <a href="https://docs.microsoft.com/en-us/aspnet/core/" target="_blank">https://docs.microsoft.com/en-us/aspnet/core/</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"Introduction to ASP.NET Core". docs.microsoft.com. <a href="https://docs.microsoft.com/en-us/aspnet/core/" target="_blank">https://docs.microsoft.com/en-us/aspnet/core/</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>"[Discussion] Updated Blazor browser support for .NET 5 · Issue #26475 · dotnet/aspnetcore". GitHub. Retrieved 2020-11-11. <a href="https://github.com/dotnet/aspnetcore/issues/26475" target="_blank">https://github.com/dotnet/aspnetcore/issues/26475</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>"GitHub - dotnet/core: Home repository of .NET and .NET Core". October 20, 2019 – via GitHub. <a href="https://github.com/dotnet/core" target="_blank">https://github.com/dotnet/core</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> <li id="fn:6"><p>"ASP.NET Blog | Announcing ASP.NET Core 2.2, available today!". ASP.NET Blog. December 4, 2018. <a href="https://devblogs.microsoft.com/aspnet/asp-net-core-2-2-available-today/" target="_blank">https://devblogs.microsoft.com/aspnet/asp-net-core-2-2-available-today/</a> <a href="#fnref:6" class="footnote-back-ref">↩</a></p></li> <li id="fn:7"><p>".NET Core and .NET 5 official support policy". Microsoft. Retrieved 2019-12-06. <a href="https://dotnet.microsoft.com/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/platform/support/policy/dotnet-core</a> <a href="#fnref:7" class="footnote-back-ref">↩</a></p></li> <li id="fn:8"><p>"ASP.NET Blog | ASP.NET Core and Blazor updates in .NET Core 3.0". ASP.NET Blog. September 23, 2019. <a href="https://devblogs.microsoft.com/aspnet/asp-net-core-and-blazor-updates-in-net-core-3-0/" target="_blank">https://devblogs.microsoft.com/aspnet/asp-net-core-and-blazor-updates-in-net-core-3-0/</a> <a href="#fnref:8" class="footnote-back-ref">↩</a></p></li> <li id="fn:9"><p>".NET Core and .NET 5 official support policy". Microsoft. Retrieved 2019-12-06. <a href="https://dotnet.microsoft.com/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/platform/support/policy/dotnet-core</a> <a href="#fnref:9" class="footnote-back-ref">↩</a></p></li> <li id="fn:10"><p>"ASP.NET Core updates in .NET Core 3.1". ASP.NET Blog. December 3, 2019. <a href="https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-core-3-1/" target="_blank">https://devblogs.microsoft.com/aspnet/asp-net-core-updates-in-net-core-3-1/</a> <a href="#fnref:10" class="footnote-back-ref">↩</a></p></li> <li id="fn:11"><p>".NET Core and .NET 5 official support policy". Microsoft. Retrieved 2019-12-06. <a href="https://dotnet.microsoft.com/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/platform/support/policy/dotnet-core</a> <a href="#fnref:11" class="footnote-back-ref">↩</a></p></li> <li id="fn:12"><p>dotnet/aspnetcore, .NET Platform, 2020-11-11, retrieved 2020-11-11 <a href="https://github.com/dotnet/aspnetcore" target="_blank">https://github.com/dotnet/aspnetcore</a> <a href="#fnref:12" class="footnote-back-ref">↩</a></p></li> <li id="fn:13"><p>"Announcing ASP.NET Core in .NET 6". .NET Blog. 2021-11-08. Retrieved 2021-11-19. <a href="https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-net-6/" target="_blank">https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-net-6/</a> <a href="#fnref:13" class="footnote-back-ref">↩</a></p></li> <li id="fn:14"><p>".NET and .NET Core Support Policy". Microsoft. Retrieved 2024-10-02. <a href="https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core</a> <a href="#fnref:14" class="footnote-back-ref">↩</a></p></li> <li id="fn:15"><p>"Announcing ASP.NET Core in .NET 7". .NET Blog. 2022-11-08. Retrieved 2024-10-02. <a href="https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-dotnet-7/" target="_blank">https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-dotnet-7/</a> <a href="#fnref:15" class="footnote-back-ref">↩</a></p></li> <li id="fn:16"><p>".NET and .NET Core Support Policy". Microsoft. Retrieved November 19, 2023. <a href="https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core</a> <a href="#fnref:16" class="footnote-back-ref">↩</a></p></li> <li id="fn:17"><p>"Announcing ASP.NET Core in .NET 8". .NET Blog. 2022-11-08. Retrieved 2023-11-19. <a href="https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-dotnet-8/" target="_blank">https://devblogs.microsoft.com/dotnet/announcing-asp-net-core-in-dotnet-8/</a> <a href="#fnref:17" class="footnote-back-ref">↩</a></p></li> <li id="fn:18"><p>".NET and .NET Core Support Policy". Microsoft. Retrieved November 12, 2024. <a href="https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core" target="_blank">https://dotnet.microsoft.com/en-us/platform/support/policy/dotnet-core</a> <a href="#fnref:18" class="footnote-back-ref">↩</a></p></li> <li id="fn:19"><p>"Announcing NET 9". .NET Blog. 2024-11-12. Retrieved 2024-11-12. <a href="https://devblogs.microsoft.com/dotnet/announcing-dotnet-9/" target="_blank">https://devblogs.microsoft.com/dotnet/announcing-dotnet-9/</a> <a href="#fnref:19" class="footnote-back-ref">↩</a></p></li> <li id="fn:20"><p>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. <a href="http://blogs.msdn.com/b/webdev/archive/2016/01/19/asp-net-5-is-dead-introducing-asp-net-core-1-0-and-net-core-1-0.aspx" target="_blank">http://blogs.msdn.com/b/webdev/archive/2016/01/19/asp-net-5-is-dead-introducing-asp-net-core-1-0-and-net-core-1-0.aspx</a> <a href="#fnref:20" class="footnote-back-ref">↩</a></p></li> <li id="fn:21"><p>"OWIN". ASP.NET 0.0.1 documentation. 17 September 2024. <a href="https://docs.asp.net/en/latest/fundamentals/owin.html" target="_blank">https://docs.asp.net/en/latest/fundamentals/owin.html</a> <a href="#fnref:21" class="footnote-back-ref">↩</a></p></li> <li id="fn:22"><p>"Roadmap". Github. <a href="https://github.com/aspnet/AspNetKatana/wiki/Roadmap" target="_blank">https://github.com/aspnet/AspNetKatana/wiki/Roadmap</a> <a href="#fnref:22" class="footnote-back-ref">↩</a></p></li> <li id="fn:23"><p>"ASP.NET vs ASP.NE CORE". ASP.NET VS. ASP.NET Core: The Ultimate Showdown. 17 February 2024. <a href="https://wirefuture.com/post/aspnet-vs-aspnet-core" target="_blank">https://wirefuture.com/post/aspnet-vs-aspnet-core</a> <a href="#fnref:23" class="footnote-back-ref">↩</a></p></li> </ol>