.NET Framework: Difference between revisions

Revision as of 00:27, 25 June 2025

Revision as of 01:15, 25 June 2025

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FCL provides the [[user interface]], [[data access]], [[database connection|database connectivity]], [[cryptography]], [[web application]] development, numeric [[algorithm]]s, and [[computer networking|network communications]]. Programmers produce software by combining their [[source code]] with the .NET Framework and other libraries. The framework is intended to be used by most new applications created for the Windows platform. Microsoft also produces an [[integrated development environment]] for .NET software called [[Microsoft Visual Studio|Visual Studio]].

.NET Framework began as [[proprietary software]], although the firm worked to [[software standard|standardize]] the software stack almost immediately, even before its first release. Despite the standardization efforts, developers, mainly those in the [[free and open-source software]] communities, expressed their unease with the selected terms and the prospects of any free and open-source implementation, especially regarding [[software patent]]s. Since then, Microsoft has changed .NET development to more closely follow a contemporary model of a community-developed software project, including issuing an update to its patent promising to address the concerns.<ref name=":0">{{Cite web |date=November 19, 2014 |title=Microsoft gets on board with open source |url=https://opensource.com/business/14/11/microsoft-dot-net-empower-open-source-communities |access-date=2020-01-02 |website=Opensource.com |language=en |first1=Luis |last1=Ibanez |archive-date=January 2, 2020 |archive-url=https://web.archive.org/web/20200102202811/https://opensource.com/business/14/11/microsoft-dot-net-empower-open-source-communities |url-status=live }}</ref>

In April 2019, Microsoft released .NET Framework 4.8, the last major version of the framework as a proprietary offering, followed by .NET Framework 4.8.1 in August 2022. Only monthly security and reliability [[software bug|bug]] fixes to that version have been released since then. No further changes to that version are planned. The .NET Framework will continue to be included with future releases of Windows and continue to receive security updates, with no plans to remove it as of September 2024.<ref>{{Cite web|last=gewarren|title=.NET Framework & Windows OS versions|url=https://docs.microsoft.com/en-us/dotnet/framework/migration-guide/versions-and-dependencies|access-date=2020-11-21|website=Microsoft Learn|language=en-us|archive-date=September 3, 2022|archive-url=https://web.archive.org/web/20220903043259/https://docs.microsoft.com/en-US/dotnet/framework/migration-guide/versions-and-dependencies|url-status=live}}</ref>

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On March 31, 2016, Microsoft announced at [[Build (developer conference)|Microsoft Build]] that they will completely [[software relicensing|relicense]] Mono under an [[MIT License]] even in scenarios where formerly a commercial license was needed.<ref>{{cite web|last1=Krill|first1=Paul|title=Xamarin's Mono runtime gets a looser license|url=http://www.infoworld.com/article/3050732/microsoft-windows/xamarins-mono-runtime-gets-a-looser-license.html|website=[[InfoWorld]]|publisher=[[IDG]]|date=April 1, 2016|access-date=April 13, 2016|archive-date=April 16, 2016|archive-url=https://web.archive.org/web/20160416032759/http://www.infoworld.com/article/3050732/microsoft-windows/xamarins-mono-runtime-gets-a-looser-license.html|url-status=live}}</ref> Microsoft also supplemented its prior patent promise for Mono, stating that they will not assert any "applicable patents" against parties that are "using, selling, offering for sale, importing, or distributing Mono."<ref name=Ferraira1>{{cite web|url=http://techreport.com/news/29929/xamarin-now-comes-free-with-visual-studio|title=Xamarin now comes free with Visual Studio.|work=The Tech Report|date=March 31, 2016|first=Bruno|last=Ferraira|access-date=April 12, 2016|archive-date=April 2, 2016|archive-url=https://web.archive.org/web/20160402173444/http://techreport.com/news/29929/xamarin-now-comes-free-with-visual-studio|url-status=live}}</ref><ref name="Microsoft_PP_Mono">{{cite web|url=https://github.com/mono/mono/blob/master/PATENTS.TXT|title=Microsoft Patent Promise for Mono|work=Mono on GitHub |date=March 28, 2016|archive-url=https://web.archive.org/web/20160416133644/https://github.com/mono/mono/blob/master/PATENTS.TXT|archive-date=April 16, 2016|access-date=April 16, 2016|url-status=live|df=dmy}}</ref> It was announced that the Mono Project was contributed to the .NET Foundation. These developments followed the acquisition of [[Xamarin]], which began in February 2016 and was finished on March 18, 2016.<ref name="Friedman2">{{cite web|url=https://blog.xamarin.com/xamarin-for-all/|title=Xamarin for Everyone|work=Xamarin Blog |first1=Nat |last1=Friedman |date=March 31, 2016|archive-url=https://web.archive.org/web/20160412072728/https://blog.xamarin.com/xamarin-for-all/|archive-date=April 12, 2016|access-date=April 12, 2016}}</ref>

Microsoft's press release highlights that the cross-platform commitment now allows for a fully open-source, modern server-side .NET stack.<ref name=":0" /> Microsoft released the source code for WPF, Windows Forms and [[WinUI]] on December 4, 2018.<ref name="ms-wpf-winforms-oss">{{cite web|title=Announcing Open Source of WPF, Windows Forms, and WinUI at Microsoft Connect 2018|url=https://blogs.windows.com/buildingapps/2018/12/04/announcing-open-source-of-wpf-windows-forms-and-winui-at-microsoft-connect-2018/|website=Windows Developer Blog|date=December 4, 2018|publisher=Microsoft |first1=Kevin |last1=Gallo |access-date=December 24, 2018|archive-url=https://web.archive.org/web/20181215163944/https://blogs.windows.com/buildingapps/2018/12/04/announcing-open-source-of-wpf-windows-forms-and-winui-at-microsoft-connect-2018/|archive-date=December 15, 2018}}</ref>

==Architecture==