.NET Framework version history: Difference between revisions

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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 13 February 2002, bringing [[managed code]] to [[Windows NT 4.0]], [[Windows 98|98]], [[Windows 2000|2000]], [[Windows ME|ME]] and [[Windows XP|XP]].

Since theits firstinitial versionrelease, Microsoft has releasedissued nine moresubsequent upgrades forto the .NET Framework, with seven of which have been released alongcoinciding with a new versionreleases of [[Visual Studio]]. Two of these upgradesNotably, .NET Frameworkversions 2.0 and 4.0, haveintroduced significant updates upgradedto [[Common Language Runtime]] (CLR)., Newenhancing versionsperformance, ofsecurity, .NETand Frameworklanguage replaceinteroperability. olderIn versionscases whenwhere the CLR version isremains theunchanged, samenewer framework releases typically replace previous ones through in-place updates.

The .NET Framework family also includes two versions for [[mobile computing|mobile]] or [[embedded device]] use. A reduced version of the framework, the [[.NET Compact Framework]], is available on [[Windows CE]] platforms, including [[Windows Mobile]] devices such as [[smartphone]]s. Additionally, the [[.NET Micro Framework]] is targeted at severely resource-constrained devices.

.NET Framework 4.8 was announced as the finallast major version of .NET Framework, with future work going into the rewritten and [[Cross-platform software|cross-platform]] [[.NET|.NET Core]] platform (later, simply ''.NET''), which shipped as ''.NET 5'' in November 2020.<ref name=":1" /><ref>{{Cite web|last=Richard|first=Lander|date=2020-11-10|title=Announcing .NET 5.0|url=https://devblogs.microsoft.com/dotnet/announcing-net-5-0/|access-date=2021-01-04|website=.NET Blog|archive-date=18 February 2021|archive-url=https://web.archive.org/web/20210218110932/https://devblogs.microsoft.com/dotnet/announcing-net-5-0/|url-status=live}}</ref> However, .NET Framework 4.8.1 was released in August 2022.<ref name="Announcing .NET Framework 4.8.1">{{Cite news|url=https://devblogs.microsoft.com/dotnet/announcing-dotnet-framework-481/|title=Announcing .NET Framework 4.8.1 |archive-url=https://web.archive.org/web/20220824141107/https://devblogs.microsoft.com/dotnet/announcing-dotnet-framework-481/ |archive-date=2022-08-24 |access-date=2022-08-11|language=en-US|url-status=live}}</ref>

==Overview==

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

.NET Framework 1.1 requiresis supported on [[Windows 98]], [[Windows ME|ME]], [[Windows NT 4.0|NT 4.0]] SP6a(with plusService Pack 6a), [[Windows Installer2000|2000]], 2.0[[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}}===

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

It.NET requiresFramework 2.0 is supported on [[Windows 98]], [[Windows ME|ME]], [[Windows 2000|2000]] (with Service Pack 3 or laterhigher), [[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.

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

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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

It.NET requiresFramework 3.0 is supported on [[Windows XP]], SP2[[Windows orServer later2003|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.

===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 Windows 8 or later, .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 shippedavailable as a Windows [[Docker (software)|Container]] image, allowing old applications that basedrely on .NET Framework 2.0–3.5 to run in a [[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}}===

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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.<ref name="depend"/> 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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On 19 October 2009, Microsoft released Beta 2 of the .NET Framework 4.<ref name="4beta2">{{cite web|url=http://blogs.msdn.com/somasegar/archive/2009/10/19/announcing-visual-studio-2010-and-net-fx-4-beta-2.aspx |title=Announcing Visual Studio 2010 and .NET FX 4 Beta 2 |author=S. Somasegar |work=[[MSDN]] Blogs |access-date=20 October 2009 |archive-url=https://web.archive.org/web/20091022053419/http://blogs.msdn.com/somasegar/archive/2009/10/19/announcing-visual-studio-2010-and-net-fx-4-beta-2.aspx |archive-date=22 October 2009 |url-status=live}}</ref> At the same time, Microsoft announced the expected launch date for .NET Framework 4 as 22 March 2010.<ref name="4beta2"/> This launch date was subsequently delayed to 12 April 2010.<ref name="4RTM">{{cite web|url=http://blogs.msdn.com/robcaron/archive/2010/01/13/9948172.aspx |title=Visual Studio 2010 and .NET Framework 4 Launch Date |first=Rob |last=Caron |work=[[MSDN]] Blogs |access-date=13 January 2010 |archive-url=https://web.archive.org/web/20100117135051/http://blogs.msdn.com/robcaron/archive/2010/01/13/9948172.aspx |archive-date=17 January 2010 |url-status=live}}</ref>

On 10 February 2010, a [[release candidate]] was published: Version:RC.<ref>{{Cite web|url=https://www.infoworld.com/article/2627953/microsoft-offers-visual-studio-2010-release-candidate.html|archive-url=https://web.archive.org/web/20100521085427/http://www.infoworld.com/d/developer-world/microsoft-offers-visual-studio-2010-release-candidate-643 |url-status=dead |title=Microsoft offers Visual Studio 2010 release candidate|first=Paul|last=Krill|date=9 February 2010|archive-date=21 May 2010|website=InfoWorld}}</ref>

On 12 April 2010, the final version of .NET Framework 4.0 was launched alongside the final release of [[Microsoft Visual Studio 2010]].<ref>{{cite web|first=Emil|last=Protalinski|title=Visual Studio 2010 and .NET Framework 4 arrive|url=https://arstechnica.com/information-technology/2010/04/visual-studio-2010-and-net-framework-40-arrive/|website=[[Ars Technica]]|date=12 April 2010|access-date=14 June 2017|archive-date=26 December 2017|archive-url=https://web.archive.org/web/20171226112717/https://arstechnica.com/information-technology/2010/04/visual-studio-2010-and-net-framework-40-arrive/|url-status=live}}</ref>

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===Windows Server AppFabric===

After the release of the .NET Framework 4, Microsoft released a set of enhancements, named [[AppFabric|Windows Server AppFabric]],<ref>{{cite web|url=http://blogs.iis.net/appfabric/archive/2010/06/07/windows-server-appfabric-now-generally-available.aspx|title=AppFabric Blog – Windows Server AppFabric now Generally Available|website=blogs.iis.net|date=7 June 2010 |access-date=19 December 2010|archive-date=9 June 2010|archive-url=https://web.archive.org/web/20100609041449/http://blogs.iis.net/appfabric/archive/2010/06/07/windows-server-appfabric-now-generally-available.aspx|url-status=live}}</ref> for [[application server]] capabilities in the form of AppFabric Hosting<ref name="dsource">{{cite web|url=https://blogs.msdn.microsoft.com/architectsrule/2008/10/01/net-framework-4-0-and-dublin-application-server/|title='Dublin' App Server coming to .NET 4|work=DevSource|access-date=27 April 2009|archive-url=https://web.archive.org/web/20171226112930/https://blogs.msdn.microsoft.com/architectsrule/2008/10/01/net-framework-4-0-and-dublin-application-server/|archive-date=26 December 2017|url-status=dead}}</ref><ref name="arule">{{cite web |url=http://blogs.msdn.com/architectsrule/archive/2008/10/01/net-framework-4-0-and-dublin-application-server.aspx |title=.NET Framework 4 and Dublin Application Server |work=[[MSDN]] Blogs |access-date=27 April 2009 |archive-url=https://web.archive.org/web/20090510131816/http://blogs.msdn.com/architectsrule/archive/2008/10/01/net-framework-4-0-and-dublin-application-server.aspx |archive-date=10 May 2009 |url-status=dead}}</ref> and in-memory distributed caching support.

==.NET Framework 4.5==

.NET Framework 4.5 was released on 15 August 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 17 October 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 20 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 30 November 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 2 August 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

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==.NET Framework 4.7==

On 5 April 2017, Microsoft announced that .NET Framework 4.7 was announcedintegrated oninto 5[[Windows April10 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://docslearn.microsoft.com/en-us/dotnet/articles/framework/whats-new/index#v47whats-new-in-net-framework-47|website=docs.microsoft.com|publisher=[[Microsoft]]|access-date=28 April 2017}}</ref>

* Enhanced cryptography with [[elliptic curve cryptography]]

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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.

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==.NET Framework 4.8==

.NET Framework 4.8 was released on 18 April 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.

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.NET Framework 4.8.1 was released on 9 August 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]] (20H2–22H2), [[Windows Server 2022]] and [[Windows 11]].

The most-recent release is 4.8.1 Build 91869195, with an offline installer size of 74 MB (77,667668,480504 bytes) and a digital signature date of JulySeptember 2728, 2023.

==References==