.NET Framework version history: Difference between revisions

Revision as of 14:55, 14 June 2024

Revision as of 10:57, 21 June 2024

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Microsoft started development on the [[.NET Framework]] in the late 1990s originally under the name of Next Generation Windows Services (NGWS). By late 2001 the first beta versions of .NET Framework 1.0 were released.<ref>{{cite web |url=http://ben.skyiv.com/clrversion.html |title=Framework Versions |archive-url=https://web.archive.org/web/20080504160116/http://ben.skyiv.com/clrversion.html |archive-date=4 May 2008 |url-status=dead|access-date=19 December 2010 }}</ref> The first version of .NET Framework was released on 1513 JanuaryFebruary 2002, bringing [[managed code]] to [[Windows NT 4.0]], [[Windows 98|98]], [[Windows 2000|2000]], [[Windows ME|ME]] and [[Windows XP|XP]].

Since the first version, Microsoft has released nine more upgrades for .NET Framework, seven of which have been released along with a new version of [[Visual Studio]]. Two of these upgrades, .NET Framework 2.0 and 4.0, have upgraded [[Common Language Runtime]] (CLR). New versions of .NET Framework replace older versions when the CLR version is the same.

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==.NET Framework 1.0==

The first version of the .NET Framework was released on 15 January 2002 for [[Windows 98]], [[Windows ME|ME]], [[Windows NT 4.0|NT 4.0]], [[Windows 2000|2000]], and [[Windows XP|XP]]. Mainstream support for this Supportversion ended on 10 July 2007, and extended support ended on 14 July 2009, with the exception of [[Windows XP Media Center Edition|Windows XP Media Center]] and [[Windows XP Tablet PC Edition|Tablet PC]] editions.<ref name="MS_DotNET_EoL"/><!-- defined by template:.NET Framework version history -->

On 19 June 2001, the tenth anniversary of the release of Visual Basic, .NET Framework 1.0 Beta 2 was released.<ref>{{Cite web|url=http://betanews.com/2001/12/05/gates-revises-visual-studio-net-release-date/|title=Gates Revises Visual Studio .NET Release Date|date=2001-12-05|website=BetaNews|access-date=2016-07-01|archive-date=15 August 2016|archive-url=https://web.archive.org/web/20160815225556/http://betanews.com/2001/12/05/gates-revises-visual-studio-net-release-date/|url-status=live}}</ref>

.NET Framework 1.0 is supported on [[Windows 98]], [[Windows ME|ME]], [[Windows NT 4.0|NT 4.0]] (with Service Pack 6a), [[Windows 2000|2000]], [[Windows XP|XP]], and [[Windows Server 2003|Server 2003]]. Applications utilizing .NET Framework 1.0 will also run on computers with .NET Framework 1.1 installed, which supports additional operating systems.<ref name="netdepends1">{{Cite web|title=.NET Framework System Requirements|url=https://msdn.microsoft.com/en-us/library/8z6watww%28v=vs.90%29.aspx|work=[[MSDN]]|publisher=[[Microsoft]]|access-date=28 November 2016|archive-date=20 December 2016|archive-url=https://web.archive.org/web/20161220061143/https://msdn.microsoft.com/en-us/library/8z6watww%28v=vs.90%29.aspx|url-status=live}}</ref>

===Service Pack 1 {{Anchor|.NET Framework 1.0 SP1}}===

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==.NET Framework 1.1==

Version 1.1 is the first minor .NET Framework upgrade. It is available on its own as a [[Freely redistributable software|redistributable package]] or in a [[software development kit]], and was published on 3 April 2003. It is also part of the second release of [[Visual Studio .NET 2003]]. This is the first version of the .NET Framework to be included as part of the Windows operating system, shipping with [[Windows Server 2003]]. SupportMainstream support for .NET Framework 1.1 ended on 14 October 2008, and extended support ended on 8 October 2013. .NET Framework 1.1 provides full [[backward compatibility]] to version 1.0, except in rare instances where an application will not run because it checks the version number of a library.<ref>{{cite web|title=.NET Framework Developer Center – Frequently Asked Questions |url=http://msdn.microsoft.com/en-us/netframework/Aa497323.aspx |archive-url=https://web.archive.org/web/20120724012426/http://msdn.microsoft.com/en-us/netframework/aa497323.aspx |archive-date=24 July 2012 |url-status=live}}</ref>

Changes in 1.1 include:<ref>{{cite web|title=New and Enhanced Features|url=https://msdn.microsoft.com/en-us/library/h88tthh0(v=vs.71).aspx|website=[[MSDN]]|publisher=[[Microsoft]]|archive-url=https://web.archive.org/web/20110127162056/http://msdn.microsoft.com/en-us/library/h88tthh0(v=vs.71).aspx|archive-date=27 January 2011 |url-status=live}}</ref>

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* Built-in support for [[ODBC]] and [[Oracle Database]], which was previously available as an add-on

* [[.NET Compact Framework]], a version of the .NET Framework for small devices

* Internet Protocol version 6 ([[IPv6]]) support

.NET Framework 1.1 is supported on [[Windows 98]], [[Windows ME|ME]], [[Windows NT 4.0|NT 4.0]] (with Service Pack 6a), [[Windows 2000|2000]], [[Windows XP|XP]], [[Windows Server 2003|Server 2003]], [[Windows Vista|Vista]], and [[Windows Server 2008|Server 2008]].<ref name="netdepends1"/><ref>{{cite web|title=.NET Framework 1.1 Redistributable|url=https://www.microsoft.com/en-us/download/details.aspx?id=26|website=[[MSDN]]|publisher=[[Microsoft]]|access-date=5 December 2016|archive-date=3 December 2016|archive-url=https://web.archive.org/web/20161203090341/http://www.microsoft.com/en-us/download/details.aspx?id=26|url-status=live}}</ref>

===Service Pack 1 {{Anchor|.NET Framework 1.1 SP1}}===

The .NET Framework 1.1 Service Pack 1 was released on 2530 August 2004.<ref>{{Cite web |url=https://www.microsoft.com/en-us/download/details.aspx?id=33 |title=Microsoft .NET Framework 1.1 Service Pack 1 |website=[[Microsoft]] |access-date=22 August 2018 |archive-date=22 August 2018 |archive-url=https://web.archive.org/web/20180822050249/https://www.microsoft.com/en-us/download/details.aspx?id=33 |url-status=live }}</ref> It requires [[Windows NT 4.0]] SP6a plus [[Windows Installer]] 2.0. It is the last version to support [[Windows NT 4.0]] SP6a, [[Windows 2000]] RTM-SP2 and [[Windows XP]] RTM-SP1.

==.NET Framework 2.0==

Version 2.0 was released on 27 October 2005. It was also released along with [[Visual Studio 2005]] and, [[Microsoft SQL Server 2005]], and [[BizTalk]] 2006. A software development kit for this version was also released on 29 November 2006.<ref>{{Cite web|url = http://www.microsoft.com/en-us/download/details.aspx?id=19988|title = .NET Framework 2.0 Software Development Kit (SDK) (x86)|date = 29 November 2006|website = Downloads|publisher = [[Microsoft]]|access-date = 1 September 2014|archive-date = 3 September 2014|archive-url = https://web.archive.org/web/20140903104359/http://www.microsoft.com/en-us/download/details.aspx?id=19988|url-status = live}}</ref> Support ended on 12 July 2011. It is the last version to support [[Windows 98]], [[Windows 2000]] SP3, [[Windows Me|Windows ME]] and [[Windows Server 2003]] RTM.<ref>{{cite web|title=Microsoft .NET Framework 3.5 Administrator Deployment Guide|url=http://msdn.microsoft.com/en-us/library/cc160717.aspx|url-status=dead|archive-url=https://web.archive.org/web/20090214083212/http://msdn.microsoft.com/en-us/library/cc160717.aspx|archive-date=14 February 2009|access-date=26 June 2008|work=[[MSDN]]|publisher=[[Microsoft]]}}</ref>

Changes in 2.0 include:

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* Language support for [[Generic programming|generics]] built directly into the .NET [[Common Language Runtime|CLR]]

.NET Framework 2.0 is supported on [[Windows 98]], [[Windows ME|ME]], [[Windows 2000|2000]] (with Service Pack 3 or higher), [[Windows XP|XP]] (with Service Pack 2 or higher), [[Windows Server 2003|Server 2003]], [[Windows Server 2008|Server 2008]] and [[Windows Server 2008 R2|Server 2008 R2]].<ref name="depend"/> Applications utilizing .NET Framework 2.0 will also run on computers with .NET Framework 3.0 or 3.5 installed, which supports additional operating systems.<ref name="depend"/>

===Service Pack 1 {{Anchor|.NET Framework 2.0 SP1}}===

The .NET Framework 2.0 Service Pack 1 was released on 19 November 2007.<ref>[https://www.microsoft.com/en-us/download/details.aspx?id=16614 Microsoft .NET Framework 2.0 Service Pack 1 (x86)] {{Webarchive|url=https://web.archive.org/web/20180822050254/https://www.microsoft.com/en-us/download/details.aspx?id=16614 |date=22 August 2018 }} microsoft.com</ref> It requires Windows 2000 with SP4.

===Service Pack 2 {{Anchor|.NET Framework 2.0 SP2}}===

The .NET Framework 2.0 Service Pack 2 was released on 11 August 2008.<ref>{{Cite web|title=Microsoft .NET Framework 2.0 Service Pack 2 | website=[[Microsoft]] |url=https://www.microsoft.com/en-us/download/details.aspx?id=1639 |url-status=dead |date=22 August 2018 |archive-url=https://web.archive.org/web/20180822050223/https://www.microsoft.com/en-us/download/details.aspx?id=1639 |archive-date=22 August 2018 }} microsoft.com</ref> It requires theWindows 2000 with SP4 plus KB835732 or KB891861 update, [[Windows XP]] with SP2 plus [[Windows Installer]] 3.1. It is the last version to support [[Windows 2000]] SP4 although there have been some unofficial workarounds to use a subset of the functionality from Version 3.5 in Windows 2000.<ref>{{cite web |title=Microsoft .NET Framework 3.5 in Windows 2000 |url=http://rainstorms.me.uk/blog/2008/03/12/microsoft-net-framework-35-in-windows-2000 |archive-url=https://web.archive.org/web/20111007045155/http://rainstorms.me.uk/blog/2008/03/12/microsoft-net-framework-35-in-windows-2000/ |archive-date=7 October 2011 |access-date=6 October 2011 |url-status=dead}}</ref>

==.NET Framework 3.0==

[[File:Microsoft .Net Framework 3.0.svg|thumb|400px|Elements of the Microsoft .NET Framework version 3.0]]

.NET Framework 3.0, formerly called WinFX,<ref>{{Cite web|url=https://docs.microsoft.com/en-us/archive/blogs/somasegar/|archive-url=https://web.archive.org/web/20070611033642/http://blogs.msdn.com/somasegar/archive/2006/06/09/624300.aspx |url-status=dead |title=Somasegar's blog|archive-date=11 June 2007|website=docs.microsoft.com}}</ref> was released on 6 November 2006. It includes a new set of [[managed code]] APIs that are an integral part of [[Windows Vista]] and [[Windows Server 2008]]. It is also available for [[Windows XP]] SP2 and [[Windows Server 2003]] as a download. There are no major architectural changes included with this release; .NET Framework 3.0 uses the same [[Common Language Runtime|CLR]] as .NET Framework 2.0.<ref>{{cite web |url=http://msdn.microsoft.com/netframework/aa663314.aspx |title=.NET Framework 3.0 Versioning and Deployment Q&A |access-date=1 June 2008 }}</ref> Unlike the previous major .NET releases there was no .NET Compact Framework release made as a counterpart of this version. Version 3.0 of the .NET Framework shipped with Windows Vista. It also shipped with Windows Server 2008 as an optional component (disabled by default).

.NET Framework 3.0 consists of four major new components:

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* [[Windows CardSpace]], formerly code-named InfoCard: A software component which securely stores a person's digital identities and provides a unified [[interface (computing)|interface]] for choosing the identity for a particular transaction, such as logging into a website

.NET Framework 3.0 is supported on [[Windows XP]], [[Windows Server 2003|Server 2003]], [[Windows Vista|Vista]], [[Windows Server 2008|Server 2008]], and [[Windows Server 2008 R2|Server 2008 R2]].<ref name="depend"/> Applications utilizing .NET Framework 3.0 will also run on computers with .NET Framework 3.5 installed, which supports additional operating systems.<ref name="depend"/>

===Service Pack 1 {{Anchor|.NET Framework 3.0 SP1}}===

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The source code of the [[Framework Class Library]] in this version has been partially released (for debugging reference only) under the [[Microsoft Reference License#Microsoft Reference Source License (Ms-RSL)|Microsoft Reference Source License]].<ref name="sourcerelease">{{cite web|url=http://weblogs.asp.net/scottgu/archive/2007/10/03/releasing-the-source-code-for-the-net-framework-libraries.aspx |title=Releasing the Source Code for the NET Framework |author=[[Scott Guthrie]] |date=3 October 2007 |access-date=15 September 2010 |archive-url=https://web.archive.org/web/20100907233621/http://weblogs.asp.net/scottgu/archive/2007/10/03/releasing-the-source-code-for-the-net-framework-libraries.aspx |archive-date=7 September 2010 |url-status=live}}</ref>

.NET Framework 3.5 is supported on [[Windows XP]] (with Service Pack 2 or higher), [[Windows Server 2003|Server 2003]] (with Service Pack 1 or higher), [[Windows Vista|Vista]], [[Windows Server 2008|Server 2008]], [[Windows 7|7]], [[Windows Server 2008 R2|Server 2008 R2]], [[Windows 8|8]], [[Windows Server 2012|Server 2012]], [[Windows 8.1|8.1]], [[Windows Server 2012 R2|Server 2012 R2]], [[Windows 10|10]], and [[Windows Server 2016|Server 2016]].<ref name="depend"/> Starting from Windows 8, .NET Framework 3.5 is an optional feature that can be turned on or off in control panel.

Starting in recent Windows versions, .NET Framework 3.5 is an optional feature that can be turned on or off in control panel.<ref name="depend"/>

Although .NET Framework 3.5 is over 10 years old, it is also shipped as Windows [[Docker (software)|Container]] image, allowing old applications that based on .NET Framework 2.0–3.5 to run in [[OS-level virtualization|container]] environment.<ref>{{Cite web|title=Docker Hub|url=https://hub.docker.com/_/microsoft-dotnet-framework-runtime/|access-date=2021-02-10|website=hub.docker.com|archive-date=12 November 2020|archive-url=https://web.archive.org/web/20201112041919/https://hub.docker.com/_/microsoft-dotnet-framework-runtime|url-status=live}}</ref>

===Service Pack 1 {{Anchor|.NET Framework 3.5 SP1}}===

The .NET Framework 3.5 Service Pack 1 was released on 11 August 2008. This release adds new functionality and provides performance improvements under certain conditions,<ref>{{cite web|url=http://msdn.microsoft.com/vstudio/products/cc533447.aspx |title=Visual Studio 2008 Service Pack 1 and .NET Framework 3.5 Service Pack 1 |access-date=7 September 2008 |archive-url=https://web.archive.org/web/20080708235537/http://msdn.microsoft.com/vstudio/products/cc533447.aspx |archive-date=8 July 2008 |url-status=live}}</ref> especially with WPF where 20–45% improvements are expected. Two new data service components have been added, the [[ADO.NET Entity Framework]] and [[ADO.NET Data Services]]. Two new assemblies for web development, System.Web{{Not a typo|.}}Abstraction and System.Web{{Not a typo|.}}Routing, have been added; these are used in the [[ASP.NET MVC]] framework and, reportedly, will be used in the future release of ASP.NET Forms applications. Service Pack 1 is included with [[SQL Server 2008]] and [[Visual Studio 2008|Visual Studio 2008 Service Pack 1]]. It also featured a new set of controls called "Visual Basic Power Packs" which brought back Visual Basic controls such as "Line" and "Shape." Version 3.5 SP1 of the .NET Framework shipped with Windows 7. It also shipped with Windows Server 2008 R2 as an optional component (disabled by default). It is the last version to support [[Windows XP]] SP2, [[Windows Server 2003]] SP1 and [[Windows Vista]] RTM.

====.NET Framework 3.5 SP1 Client Profile====

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|archive-date=7 December 2008

|url-status=live

}}</ref> However, the Client Profile amounts to this size only if using the online installer on Windows XP SP2 when no other .NET Frameworks are installed or using [[Windows Update]]. When using the off-line installer or any other OS, the download size is still 250&nbsp;MB.<ref>{{cite web

|url=http://blogs.msdn.com/jaimer/archive/2008/08/20/client-profile-explained.aspx

|title=Client profile explained..

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* Introduced Common Language Runtime (CLR) 4.0

.NET Framework 4.0 is supported on [[Windows XP]] (with Service Pack 3), [[Windows Server 2003]] (with Service Pack 2), [[Windows Vista|Vista]] (with Service Pack 1 or higher), [[Windows Server 2008|Server 2008]], [[Windows 7|7]] and [[Windows Server 2008 R2|Server 2008 R2]].<ref name="depend"/> Applications utilizing .NET Framework 4.0 will also run on computers with .NET Framework 4.5 or 4.6 installed, which supports additional operating systems. Support for .NET Framework 4.0 ended on 12 April 2016 and is no longer providing technical support, bug fixes, or security fixes for .NET Framework 4.0 vulnerabilities which may be subsequently reported or discovered. It is the last version to support [[Windows XP]] SP3, [[Windows Server 2003]] SP2, [[Windows Vista]] SP1, [[Windows Server 2008]] RTM, [[Windows 7]] RTM and [[Windows Server 2008 R2]] RTM.

===History===

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==.NET Framework 4.5==

.NET Framework 4.5 was released on 2515 JulyAugust 2012;<ref name="net45">{{cite web|url=http://blogs.msdn.com/b/dotnet/archive/2012/08/15/announcing-the-release-of-net-framework-4-5-rtm-product-and-source-code.aspx|title=Announcing the release of .NET Framework 4.5 RTM – Product and Source Code|author=Brandon Bray([[MSDN Blogs]])|access-date=15 August 2012|archive-date=17 August 2012|archive-url=https://web.archive.org/web/20120817233450/http://blogs.msdn.com/b/dotnet/archive/2012/08/15/announcing-the-release-of-net-framework-4-5-rtm-product-and-source-code.aspx|url-status=live}}</ref> a set of new or improved features were added into this version.<ref name="net45doc">{{cite web |url=http://msdn.microsoft.com/en-us/library/ms171868%28v=VS.110%29.aspx |title=What's New in the .NET Framework 4.5 |author=[[MSDN Library]] |access-date=15 August 2012 |archive-date=14 August 2012 |archive-url=https://web.archive.org/web/20120814112405/http://msdn.microsoft.com/en-US/library/ms171868(v=vs.110).aspx |url-status=live }}</ref> NET Framework 4.5 is supported on [[Windows Vista]] or later.<ref>{{cite web|url=https://www.microsoft.com/en-us/download/details.aspx?id=30653|title=.NET Framework 4.5|website=Microsoft Download Center|access-date=23 May 2018|archive-date=22 May 2018|archive-url=https://web.archive.org/web/20180522055555/http://www.microsoft.com/EN-US/DOWNLOAD/DETAILS.ASPX?ID=30653|url-status=live}}</ref><ref>{{cite web|url=http://www.microsoft.com/visualstudio/11/en-us/downloads#net-45|title=Standalone Installers .NET 4.5|website=microsoft.com|access-date=16 December 2018|archive-url=https://web.archive.org/web/20120817140552/http://www.microsoft.com/visualstudio/11/en-us/downloads#net-45|archive-date=17 August 2012|url-status=dead}}</ref> The .NET Framework 4.5 uses Common Language Runtime 4.0, with some additional runtime features.<ref>{{cite web|url=http://msdn.microsoft.com/en-us/library/bb822049.aspx|title=.NET Framework Versions and Dependencies|last=rpetrusha|website=msdn.microsoft.com|access-date=25 July 2013|archive-date=7 August 2013|archive-url=https://web.archive.org/web/20130807051529/http://msdn.microsoft.com/en-us/library/bb822049.aspx|url-status=live}}</ref><ref name="depend"/> Applications utilizing .NET Framework 4.5 will also run on computers with .NET Framework 4.6 installed, which supports additional operating systems.

.NET Framework 4.5 is supported on [[Windows Vista]] (with Service Pack 2), [[Windows Server 2008|Server 2008]] (with Service Pack 2), [[Windows 7|7]] (with Service Pack 1), [[Windows Server 2008 R2|Server 2008 R2]] (with Service Pack 1), [[Windows 8|8]], [[Windows Server 2012|Server 2012]], [[Windows 8.1|8.1]] and [[Windows Server 2012 R2|Server 2012 R2]].<ref name="depend"/> Applications utilizing .NET Framework 4.5 will also run on computers with .NET Framework 4.6 installed, which supports additional operating systems.

===.NET for Metro-style apps===

[[Metro-style app]]s were originally designed for specific form factors and leverage the power of the Windows operating system. Two subset of the .NET Framework is available for building Metro-style apps using [[C Sharp (programming language)|C#]] or [[Visual Basic]]: One for [[Windows 8]] and [[Windows 8.1]], called ''.NET APIs for Windows 8.x Store apps''. Another for [[Universal Windows Platform]] (UWP), called ''.NET APIs for UWP''. This version of .NET Framework, as well as the runtime and libraries used for Metro-style apps, is a part of [[Windows Runtime]], the new platform and development model for Metro-style apps. It is an ecosystem that houses many platforms and languages, including [[.NET Framework]], [[C++]] and [[HTML5]] with [[JavaScript]].<ref>{{cite web|title=.NET for Windows apps|url=https://msdn.microsoft.com/en-us/library/windows/apps/br230232.aspx|website=[[MSDN]]|publisher=[[Microsoft]]|access-date=26 January 2016|archive-date=20 February 2016|archive-url=https://web.archive.org/web/20160220182055/https://msdn.microsoft.com/en-us/library/windows/apps/br230232.aspx|url-status=live}}</ref>

===Core features===

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===.NET Framework 4.5.1===

The release of .NET Framework 4.5.1 was announced on 2117 AugustOctober 2013 along Visual Studio 2013.<ref>{{cite web|title=.NET Framework 4.5.1 RTM => start coding|url=http://blogs.msdn.com/b/dotnet/archive/2013/10/17/net-framework-4-5-1-rtm-gt-start-coding.aspx|work=.NET Framework Blog|publisher=[[Microsoft]]|access-date=18 November 2013|date=17 October 2013|archive-date=22 November 2013|archive-url=https://web.archive.org/web/20131122042500/http://blogs.msdn.com/b/dotnet/archive/2013/10/17/net-framework-4-5-1-rtm-gt-start-coding.aspx|url-status=live}}</ref> This version requires [[Windows Vista SP2]] and later<ref>{{cite web|title=Microsoft .NET Framework 4.5.1 (Offline Installer)|url=http://www.microsoft.com/en-us/download/details.aspx?id=40779|work=Download Center|publisher=[[Microsoft]]|access-date=18 November 2013|date=12 October 2013|archive-date=28 November 2013|archive-url=https://web.archive.org/web/20131128023006/http://www.microsoft.com/en-us/download/details.aspx?id=40779|url-status=live}}</ref> and is included with [[Windows 8.1]] and [[Windows Server 2012 R2]]. New features of .NET Framework 4.5.1:<ref name="net451_features">{{cite web|title=.NET Framework 4.5.1 RTM => start coding|url=https://blogs.msdn.microsoft.com/dotnet/2013/10/17/net-framework-4-5-1-rtm-start-coding/|website=MSDN Blogs|date=17 October 2013|publisher=Microsoft|access-date=4 October 2016|archive-date=9 October 2016|archive-url=https://web.archive.org/web/20161009180408/https://blogs.msdn.microsoft.com/dotnet/2013/10/17/net-framework-4-5-1-rtm-start-coding/|url-status=live}}</ref>

* Debugger support for X64 edit and continue (EnC)

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===.NET Framework 4.5.2===

The release of .NET Framework 4.5.2 was announced on 5 May 2014.<ref name="net452_release">{{cite web|title=Announcing the .NET Framework 4.5.2|url=https://blogs.msdn.microsoft.com/dotnet/2014/05/05/announcing-the-net-framework-4-5-2/|website=MSDN Blogs|date=5 May 2014|publisher=Microsoft|access-date=11 June 2014|archive-date=14 March 2017|archive-url=https://web.archive.org/web/20170314154349/https://blogs.msdn.microsoft.com/dotnet/2014/05/05/announcing-the-net-framework-4-5-2/|url-status=live}}</ref> This version requires [[Windows Vista SP2]] and later.<ref>{{cite web|title=Microsoft .NET Framework 4.5.2 (Offline Installer)|url=http://www.microsoft.com/en-us/download/details.aspx?id=42642|work=Download Center|publisher=[[Microsoft]]|access-date=6 May 2017|date=6 May 2014|archive-date=4 May 2017|archive-url=https://web.archive.org/web/20170504193816/http://www.microsoft.com/en-us/download/details.aspx?id=42642|url-status=live}}</ref> For [[Windows Forms]] applications, improvements were made for high [[Dots per inch|DPI]] scenarios. For ASP.NET, higher reliability HTTP header inspection and modification methods are available as is a new way to schedule background asynchronous worker tasks.<ref name="net452_release" />

==.NET Framework 4.6==

.NET Framework 4.6 was announced on 12 November 2014.<ref name="net46">{{cite web|url=https://devblogs.microsoft.com/dotnet/announcing-net-2015-preview-a-new-era-for-net/|title=Announcing .NET 2015 Preview: A New Era for .NET|author=.NET Team|date=12 November 2014|access-date=27 February 2015|archive-date=9 May 2019|archive-url=https://web.archive.org/web/20190509050512/https://devblogs.microsoft.com/dotnet/announcing-net-2015-preview-a-new-era-for-net/|url-status=live}}</ref> It was released on 920 July 2015.<ref name=":0">{{cite web|last1=Lander|first1=Rich|title=Announcing .NET Framework 4.6|url=http://blogs.msdn.com/b/dotnet/archive/2015/07/20/announcing-net-framework-4-6|website=.NET Blog|publisher=[[Microsoft]]|date=20 July 2015|quote=The team is updating the System.Security.Cryptography APIs to support the Windows CNG cryptography APIs [...] since it supports modern cryptography algorithms [Suite B Support], which are important for certain categories of apps.|access-date=20 July 2015|archive-date=8 October 2021|archive-url=https://web.archive.org/web/20211008175725/https://devblogs.microsoft.com/dotnet/announcing-net-framework-4-6/|url-status=live}}</ref> It supports a new [[just-in-time compiler]] (JIT) for 64-bit systems called RyuJIT, which features higher performance and support for [[SSE2]] and [[AVX2]] instruction sets. WPF and Windows Forms both have received updates for high DPI scenarios. Support for [[Transport Layer Security|TLS]] 1.1 and TLS 1.2 has been added to WCF.<ref name=":0" /> This version requires [[Windows Vista]] SP2 or later.<ref name="SysReq">{{cite web|title=.NET Framework System Requirements|url=https://msdn.microsoft.com/en-us/library/8z6watww(v=vs.110).aspx|website=MSDN|publisher=[[Microsoft]]|access-date=18 August 2016|archive-date=6 August 2016|archive-url=https://web.archive.org/web/20160806131605/https://msdn.microsoft.com/en-us/library/8z6watww(v=vs.110).aspx|url-status=live}}</ref> It is the last version to support [[Windows Vista]] SP2 and [[Windows Server 2008]] SP2.

The cryptographic API in .NET Framework 4.6 uses the latest version of [[Cryptography Next Generation|Windows CNG]] cryptography API. As a result, [[NSA Suite B Cryptography]] is available to .NET Framework. Suite B consists of [[Advanced Encryption Standard|AES]], the [[SHA-2]] family of hashing algorithms, [[elliptic curve Diffie–Hellman]], and [[elliptic curve DSA]].<ref name=":0" /><ref name="Suite B source">{{cite web|title=CNG Features § Suite B Support|url=https://msdn.microsoft.com/library/windows/desktop/bb204775.aspx#suite_b_support|website=Cryptography API: Next Generation|publisher=[[Microsoft]]|access-date=1 January 2016|archive-date=4 April 2016|archive-url=https://web.archive.org/web/20160404142617/https://msdn.microsoft.com/library/windows/desktop/bb204775.aspx#suite_b_support|url-status=live}}</ref>

<ref name="depend"/> Support for .NET Framework 4.6 ended on 26 April 2022.

.NET Framework 4.6 is supported on [[Windows Vista]] (with Service Pack 2), [[Windows Server 2008|Server 2008]] (with Service Pack 2), [[Windows 7|7]] (with Service Pack 1), [[Windows Server 2008 R2|Server 2008 R2]] (with Service Pack 1), [[Windows 8|8]], [[Windows Server 2012|Server 2012]], [[Windows 8.1|8.1]], [[Windows Server 2012 R2|Server 2012 R2]], [[Windows 10|10]] and [[Windows Server 2016|Server 2016]].<ref name="depend"/> Support for .NET Framework 4.6 ended on 26 April 2022.

===.NET Framework 4.6.1===

The release of .NET Framework 4.6.1 was announced on 2930 OctoberNovember 2015.<ref name="net461_release">{{cite web|title=.NET Framework 4.6.1 is now available!|url=https://blogs.msdn.microsoft.com/dotnet/2015/11/30/net-framework-4-6-1-is-now-available/|website=MSDN Blogs|date=30 November 2015|publisher=Microsoft|access-date=19 February 2016|archive-date=27 August 2016|archive-url=https://web.archive.org/web/20160827123538/https://blogs.msdn.microsoft.com/dotnet/2015/11/30/net-framework-4-6-1-is-now-available/|url-status=live}}</ref> ItThis version requires [[Windows 7]] SP1 or later and is also the last version to support [[Windows 8]].<ref name="SysReq" /> New features and APIs include:

* WPF improvements for spell check, support for per-user custom dictionaries and improved touch performance.

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===.NET Framework 4.6.2===

The preview of .NET Framework 4.6.2 was announced on 30 March 2016.<ref>{{cite web|title=Announcing the .NET Framework 4.6.2 Preview|url=https://blogs.msdn.microsoft.com/dotnet/2016/03/30/announcing-the-net-framework-4-6-2-preview/|website=.NET Blog|date=30 March 2016|publisher=Microsoft|access-date=3 August 2016|archive-date=10 July 2018|archive-url=https://web.archive.org/web/20180710164840/https://blogs.msdn.microsoft.com/dotnet/2016/03/30/announcing-the-net-framework-4-6-2-preview/|url-status=live}}</ref> It was released on 152 JulyAugust 2016.<ref>{{cite web|title=Announcing .NET Framework 4.6.2|url=https://blogs.msdn.microsoft.com/dotnet/2016/08/02/announcing-net-framework-4-6-2/|website=.NET Blog|date=2 August 2016|publisher=Microsoft|access-date=3 August 2016|archive-date=24 October 2016|archive-url=https://web.archive.org/web/20161024011115/https://blogs.msdn.microsoft.com/dotnet/2016/08/02/announcing-net-framework-4-6-2/|url-status=live}}</ref> ItThis version requires [[Windows 7]] SP1 or later and is also the last version to support [[Windows 10]] (RTM–1511RTM—1511).<ref name="SysReq" /> New features include:

* Support for paths longer than 260 characters

Line 290 ⟶ 295:

==.NET Framework 4.7==

On 5 April 2017, Microsoft announced that .NET Framework 4.7 was announcedintegrated oninto 17[[Windows March10 2017Creators Update]], promising a standalone installer for other Windows versions. An update for [[Visual Studio 2017]] was released on this date to add support for targeting .NET Framework 4.7.<ref>{{cite web|last1=Lander|first1=Rich|title=Announcing the .NET Framework 4.7|url=https://blogs.msdn.microsoft.com/dotnet/2017/04/05/announcing-the-net-framework-4-7/|website=.NET Blog|publisher=[[Microsoft]]|date=5 April 2017|access-date=28 April 2017|archive-date=10 July 2018|archive-url=https://web.archive.org/web/20180710163441/https://blogs.msdn.microsoft.com/dotnet/2017/04/05/announcing-the-net-framework-4-7/|url-status=live}}</ref> The promised standalone installer for Windows 7 and later was released on 2 May 2017,<ref>{{cite web|title=Microsoft .NET Framework 4.7 (Offline Installer)|url=https://www.microsoft.com/en-us/download/details.aspx?id=55167|website=Download Center|publisher=[[Microsoft]]|date=2 May 2017|access-date=4 May 2017|archive-date=10 July 2018|archive-url=https://web.archive.org/web/20180710163806/https://www.microsoft.com/en-us/download/details.aspx?id=55167|url-status=live}}</ref> but it had prerequisites not included with the package.<ref>{{cite web|title=The .NET Framework 4.7 installation is blocked on Windows 7, Windows Server 2008 R2 and Windows Server 2012 because of a missing d3dcompiler update|url=https://support.microsoft.com/en-us/help/4020302/the-net-framework-4-7-installation-is-blocked-on-windows-7-windows-ser|website=Support|publisher=[[Microsoft]]|date=3 May 2017|access-date=28 May 2017|archive-date=28 July 2018|archive-url=https://web.archive.org/web/20180728150401/https://support.microsoft.com/en-us/help/4020302/the-net-framework-4-7-installation-is-blocked-on-windows-7-windows-ser|url-status=live}}</ref><ref name="depend"/>NET Framework 4.7 dropped support for [[Windows 8]] and will only run on Windows 7 Service Pack 1 and later.

New features in .NET Framework 4.7 include:<ref>{{cite web|title=What's New in the .NET Framework|url=https://docs.microsoft.com/en-us/dotnet/articles/framework/whats-new/index#v47|website=docs.microsoft.com|publisher=[[Microsoft]]|access-date=28 April 2017}}</ref>

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* More support for touch and stylus in Windows Presentation Foundation (WPF)

* New print APIs for WPF

.NET Framework 4.7 is supported on [[Windows 7]] (with Service Pack 1), [[Windows Server 2008 R2|Server 2008 R2]] (with Service Pack 1), [[Windows Server 2012|Server 2012]], [[Windows 8.1|8.1]], [[Windows Server 2012 R2|Server 2012 R2]], [[Windows 10|10]], [[Windows Server 2016|Server 2016]] and [[Windows Server 2019|Server 2019]].<ref name="depend"/>

.NET Framework 4.7 is also shipped as a Windows container image.

===.NET Framework 4.7.1===

.NET Framework 4.7.1 was released on 2217 SeptemberOctober 2017.<ref>{{cite web |url=https://blogs.msdn.microsoft.com/dotnet/2017/10/17/announcing-the-net-framework-4-7-1/ |title=Announcing the .NET Framework 4.7.1 |last=Krishna |first=Preeti |date=17 October 2017 |website=.NET Blog |publisher=[[Microsoft]] |access-date=10 January 2018 |archive-date=31 December 2017 |archive-url=https://web.archive.org/web/20171231121950/https://blogs.msdn.microsoft.com/dotnet/2017/10/17/announcing-the-net-framework-4-7-1/ |url-status=live }}</ref> Amongst the fixes and new features, it corrects a d3dcompiler dependency issue.<ref>{{cite web|url=https://blogs.msdn.microsoft.com/dotnet/2017/10/17/announcing-the-net-framework-4-7-1/#comment-381526|title=Announcing the .NET Framework 4.7.1|website=microsoft.com|date=17 October 2017|access-date=10 January 2018|archive-date=31 December 2017|archive-url=https://web.archive.org/web/20171231121950/https://blogs.msdn.microsoft.com/dotnet/2017/10/17/announcing-the-net-framework-4-7-1/#comment-381526|url-status=live}}</ref> It also adds compatibility with the .NET Standard 2.0 out of the box.<ref>{{Citation|last=Immo Landwerth|title=.NET Standard – .NET Framework 4.7.1|date=2017-09-27|url=https://www.youtube.com/watch?v=u67Eu_IgEMs|access-date=2018-04-25|archive-date=19 September 2018|archive-url=https://web.archive.org/web/20180919205350/https://www.youtube.com/watch?v=u67Eu_IgEMs|url-status=live}}</ref>

.NET Framework 4.7.1 is also shipped as a Windows container image.

===.NET Framework 4.7.2===

.NET Framework 4.7.2 was released on 1030 April 2018.<ref>{{Cite news|url=https://blogs.msdn.microsoft.com/dotnet/2018/04/30/announcing-the-net-framework-4-7-2/|title=Announcing the .NET Framework 4.7.2|access-date=2018-06-12|language=en-US|archive-date=12 June 2018|archive-url=https://web.archive.org/web/20180612144949/https://blogs.msdn.microsoft.com/dotnet/2018/04/30/announcing-the-net-framework-4-7-2/|url-status=live}}</ref> Amongst the changes are improvements to ASP.NET, BCL, CLR, ClickOnce, Networking, SQL, WCF, Windows Forms, Workflow and WPF.<ref>{{cite web|url=https://docs.microsoft.com/en-us/dotnet/framework/whats-new/index#v472|title=What's new in the .NET Framework|website=microsoft.com|access-date=12 June 2018|archive-date=29 November 2017|archive-url=https://web.archive.org/web/20171129170445/https://docs.microsoft.com/en-us/dotnet/framework/whats-new/index#v472|url-status=live}}</ref> This version is included with [[Windows Server 2019|Server 2019]].<ref name="depend"/>

.NET Framework 4.7.2 is also shipped as a Windows container image.

==.NET Framework 4.8==

.NET Framework 4.8 was released on 18 MarchApril 2019.<ref>{{Cite news|url=https://devblogs.microsoft.com/dotnet/announcing-the-net-framework-4-8/|title=Announcing the .NET Framework 4.8|access-date=2018-04-18|language=en-US|archive-date=19 April 2019|archive-url=https://web.archive.org/web/20190419141220/https://devblogs.microsoft.com/dotnet/announcing-the-net-framework-4-8/|url-status=live}}</ref><ref>{{Cite news|url=https://devblogs.microsoft.com/dotnet/upcoming-updates-for-net-framework-4-8/|title=Upcoming Updates for .NET Framework 4.8|access-date=2018-04-19|language=en-US|archive-date=20 April 2019|archive-url=https://web.archive.org/web/20190420052208/https://devblogs.microsoft.com/dotnet/upcoming-updates-for-net-framework-4-8/|url-status=live}}</ref> It was the final version of .NET Framework released after [[Windows Vista]] reached [[End-of-life (product)|end of life]] on 11 April 2017, with future work going into the [[.NET Core]] platform that eventually became .NET 5 and onwards.<ref name=":1">{{Cite web|date=2019-05-06|title=.NET Core is the Future of .NET|url=https://devblogs.microsoft.com/dotnet/net-core-is-the-future-of-net/|access-date=2020-06-06|website=.NET Blog|language=en-US|archive-date=1 June 2020|archive-url=https://web.archive.org/web/20200601144344/https://devblogs.microsoft.com/dotnet/net-core-is-the-future-of-net/|url-status=live}}</ref> This release included [[Just-in-time compilation|JIT]] enhancements ported from .NET Core 2.1, [[Pixel density|High DPI]] enhancements for WPF applications, accessibility improvements, performance updates, and security enhancements.<ref>{{Cite news|url=https://github.com/microsoft/dotnet/blob/master/releases/net48/README.md|title=.NET Framework 4.8 Release Notes|language=en-US|access-date=25 June 2019|archive-date=11 May 2019|archive-url=https://web.archive.org/web/20190511114502/https://github.com/Microsoft/dotnet/blob/master/releases/net48/README.md|url-status=live}}</ref> Over five months after its release, an update for Visual Studio 2019 was released on 23 September 2019 to add support for targeting .NET Framework 4.8. It supported [[Windows 7]] (with Service Pack 1), [[Windows Server 2008 R2|Server 2008 R2]] (with Service Pack 1), [[Windows Server 2012|Server 2012]], [[Windows 8.1|8.1]], [[Windows Server 2012 R2|Server 2012 R2]], [[Windows 10|10]], [[Windows Server 2016|Server 2016]] and [[Windows Server 2019|Server 2019]]<ref name="depend" /> and also shipped as a Windows container image. It is the last version to support [[Windows 7]] SP1, [[Windows Server 2008 R2]] SP1, [[Windows Server 2012]], [[Windows 8.1]], [[Windows Server 2012 R2]], [[Windows 10]] (1607–1809), [[Windows Server 2016]] and [[Windows Server 2019]], although it is only supported as included in Windows 10 (1903–2004).

The most-recent release is 4.8.0 Build 4115, with an offline installer size of 115 MB (121,307,088 bytes) and a digital signature date of May 1, 2021.

===.NET Framework 4.8.1===

.NET Framework 4.8.1 was released on 69 MayAugust 2022.<ref name="Announcing .NET Framework 4.8.1"/> This version includes the native [[ARM64]] support, WCAG2.1 compliant accessible tooltips, and accessibility improvements for Windows Forms. It is supported on [[Windows 10]] (20H2–22H220H2+), [[Windows Server 2022]] and [[Windows 11]].

The most-recent release is 4.8.1 Build 9186, with an offline installer size of 74 MB (77,667,480 bytes) and a digital signature date of July 27, 2023.