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istory wikipedia jump to content main menu main menu move to sidebar hide navigation main page contents current events random article about wikipedia contact us contribute help learn to edit community portal recent changes upload file special pages search search appearance donate create account log in personal tools donate create account log in contents move to sidebar hide top 1 overview 2 net framework 1 0 toggle net framework 1 0 subsection 2 1 service pack 1 2 2 service pack 2 2 3 service pack 3 3 net framework 1 1 toggle net framework 1 1 subsection 3 1 service pack 1 4 net framework 2 0 toggle net framework 2 0 subsection 4 1 service pack 1 4 2 service pack 2 5 net framework 3 0 toggle net framework 3 0 subsection 5 1 service pack 1 5 2 service pack 2 6 net framework 3 5 toggle net framework 3 5 subsection 6 1 service pack 1 6 1 1 net framework 3 5 sp1 client profile 7 net framework 4 0 toggle net framework 4 0 subsection 7 1 history 7 2 windows server appfabric 8 net framework 4 5 toggle net framework 4 5 subsection 8 1 net for metro style apps 8 2 core features 8 3 managed extensibility framework mef 8 4 asp net 8 5 networking 8 6 net framework 4 5 1 8 7 net framework 4 5 2 9 net framework 4 6 toggle net framework 4 6 subsection 9 1 net framework 4 6 1 9 2 net framework 4 6 2 10 net framework 4 7 toggle net framework 4 7 subsection 10 1 net framework 4 7 1 10 2 net framework 4 7 2 11 net framework 4 8 toggle net framework 4 8 subsection 11 1 net framework 4 8 1 12 references toggle the table of contents net framework version history 1 language 한국어 edit links article talk english read edit view history tools tools move to sidebar hide actions read edit view history general what links here related changes upload file permanent link page information cite this page get shortened url switch to legacy parser print export download as pdf printable version in other projects wikidata item appearance move to sidebar hide from wikipedia the free encyclopedia this article may require cleanup to meet wikipedia s quality standards the specific problem is needs cleanup per notchangelog please help improve this article if you can december 2023 learn how and when to remove this message net store apis async model parallel linq tpl linq ef wpf wcf wf wcs winforms asp net ado net framework class library common language runtime the net framework stack 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 1 the first version of net framework was released on 13 february 2002 bringing managed code to windows nt 4 0 98 2000 me and xp since its initial release microsoft has issued nine subsequent upgrades to the net framework with seven coinciding with new releases of visual studio notably versions 2 0 and 4 0 introduced significant updates to common language runtime clr enhancing performance security and language interoperability in cases where the clr version remains unchanged newer framework releases typically replace previous ones through in place updates the net framework family also includes two versions for 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 smartphones additionally the net micro framework is targeted at severely resource constrained devices net framework 4 8 was announced as the last major version of net framework with future work going into the rewritten and cross platform net core platform later simply net which shipped as net 5 in november 2020 2 3 however net framework 4 8 1 was released in august 2022 4 overview edit overview of net framework release history 5 6 7 8 version clr release date support ended 9 10 visual studio included in can be installed on replaces windows windows server windows windows server 1 0 1 0 2002 01 15 11 12 visual studio net 2002 n a n a nt 4 0 sp6a 98 98se me 2000 xp nt 4 0 sp6a 2000 2003 n a 1 0 sp1 2002 03 19 13 n a n a 1 0 sp2 2002 08 07 14 xp sp1 a n a 1 0 sp3 2004 08 30 15 2009 07 14 n a n a 1 1 1 1 2003 04 09 16 visual studio net 2003 n a 2003 x86 nt 4 0 sp6a 98 98se me 2000 xp vista nt 4 0 sp6a 2000 2003 x64 2008 1 0 17 1 1 sp1 2004 08 30 15 2013 10 08 xp sp2 sp3 b 2003 sp1 sp2 x86 2 0 2 0 2005 10 27 18 visual studio 2005 n a 2003 r2 98 98se me 2000 sp3 xp sp2 2000 sp3 2003 n a 2 0 sp1 2007 11 19 19 n a 2008 2000 sp4 xp sp2 2000 sp4 2003 sp1 2 0 sp2 2008 08 11 20 2011 07 12 n a 2008 sp2 2008 r2 3 0 2 0 2006 11 06 21 visual studio 2008 vista n a xp sp2 2003 sp1 2 0 3 0 sp1 2007 11 19 19 vista sp1 2008 c 3 0 sp2 2008 08 11 20 2011 07 12 vista sp2 2008 sp2 c 2008 r2 c 3 5 2 0 2007 11 19 19 visual studio 2008 n a n a xp sp2 vista 2003 sp1 2008 2 0 3 0 3 5 sp1 2008 08 11 20 2029 01 09 d visual studio 2008 sp1 7 8 c 8 1 c 10 c 11 c 2008 r2 c 2012 c 2012 r2 c v1709 v20h2 c 2016 2022 c v23h2 c 2025 c 4 0 4 2010 04 12 22 2016 01 12 visual studio 2010 n a n a xp sp3 vista sp1 7 2003 sp2 2008 2008 r2 n a 4 5 2012 08 15 23 2016 01 12 visual studio 2012 8 2012 vista sp2 7 sp1 2008 sp2 2008 r2 sp1 4 0 4 5 1 2013 10 17 24 2016 01 12 visual studio 2013 8 1 2012 r2 vista sp2 7 sp1 8 2008 sp2 2008 r2 sp1 2012 4 0 4 5 4 5 2 2014 05 05 25 2022 04 26 visual studio 2015 n a n a vista sp2 7 sp1 8 8 1 2008 sp2 2008 r2 sp1 2012 2012 r2 4 0 4 5 1 4 6 2015 07 20 26 2022 04 26 visual studio 2015 10 v1507 n a vista sp2 7 sp1 8 8 1 update 2008 sp2 2008 r2 sp1 2012 2012 r2 update 4 0 4 5 2 4 6 1 2015 11 30 27 2022 04 26 visual studio 2015 update 1 10 v1511 n a 7 sp1 8 8 1 update 10 v1507 2008 r2 sp1 2012 2012 r2 update 4 0 4 6 4 6 2 2016 08 02 28 2027 01 12 visual studio 2017 15 0 10 v1607 2016 7 sp1 8 1 update 10 v1507 v1511 2008 r2 sp1 2012 2012 r2 update 4 0 4 6 1 4 7 2017 04 05 29 same as parent os visual studio 2017 15 1 10 v1703 n a 7 sp1 8 1 update 10 v1607 2008 r2 sp1 2012 2012 r2 update 2016 4 0 4 6 2 4 7 1 2017 10 17 30 visual studio 2017 15 5 10 v1709 v1709 7 sp1 8 1 update 10 v1607 v1703 2008 r2 sp1 2012 2012 r2 update 2016 4 0 4 7 4 7 2 2018 04 30 31 visual studio 2017 15 8 10 v1803 v1809 v1803 v1809 2019 7 sp1 8 1 update 10 v1607 v1709 2008 r2 sp1 2012 2012 r2 update 2016 v1709 4 0 4 7 1 4 8 2019 04 18 32 visual studio 2019 16 3 10 v1903 v22h2 11 v21h2 v1903 v20h2 2022 7 sp1 8 1 update 10 v1607 v1809 2008 r2 sp1 2012 2012 r2 update 2016 v1709 v1809 2019 4 0 4 7 2 4 8 1 2022 08 09 33 visual studio 2022 17 3 11 v22h2 v26h1 v23h2 2025 10 v20h2 v22h2 11 v21h2 v20h2 2022 4 0 4 8 notes a net framework 1 0 is an integral component of windows xp media center edition and windows xp tablet pc edition installation cds for the home edition and the professional edition of windows xp sp1 sp2 or sp3 come with net framework 1 0 installation packages 7 b installation cds for the home edition and the professional edition of windows xp sp2 and sp3 come with net framework 1 1 installation packages 7 c net framework is not automatically installed with this operating system it must be installed either from a windows installation media or from the internet on demand control panel or server manager always attempts the latter 34 d this date applies only when running on windows 10 version 1809 windows server 2019 or later on older versions of windows net framework 3 5 service pack 1 adopts the lifecycle of the underlying windows operating system 10 net framework 1 0 edit the first version of the net framework was released on 15 january 2002 for windows 98 me nt 4 0 2000 and xp mainstream support for this version ended on 10 july 2007 and extended support ended on 14 july 2009 with the exception of windows xp media center and tablet pc editions 10 on 19 june 2001 the tenth anniversary of the release of visual basic net framework 1 0 beta 2 was released 35 net framework 1 0 is supported on windows 98 me nt 4 0 with service pack 6a 2000 xp and server 2003 applications utilizing net framework 1 0 will also run on computers with net framework 1 1 installed which supports additional operating systems 36 service pack 1 edit the net framework 1 0 service pack 1 was released on 19 march 2002 37 service pack 2 edit net framework 1 0 service pack 2 was released on 7 august 2002 38 it is the first commercially released version of net framework to be included as part of a windows operating systems shipping with the installation media of windows xp sp1 as an optional component service pack 3 edit net framework 1 0 service pack 3 was released on 30 august 2004 39 net framework 1 1 edit version 1 1 is the first minor net framework upgrade it is available on its own as a 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 mainstream 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 40 changes in 1 1 include 41 built in support for mobile asp net controls which was previously available as an add on enables windows forms assemblies to execute in a semi trusted manner from the internet enables code access security in asp net applications 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 me nt 4 0 with service pack 6a 2000 xp server 2003 vista and server 2008 36 42 service pack 1 edit the net framework 1 1 service pack 1 was released on 30 august 2004 43 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 edit version 2 0 was released on 27 october 2005 it was also released along with visual studio 2005 microsoft sql server 2005 and biztalk 2006 a software development kit for this version was released on 29 november 2006 44 support ended on 12 july 2011 it is the last version to support windows 98 windows 2000 sp3 windows me and windows server 2003 rtm 45 changes in 2 0 include full 64 bit computing support for both the x64 and the ia 64 hardware platforms microsoft sql server integration instead of using t sql one can build stored procedures and triggers in any of the net compatible languages a new hosting api for native applications wishing to host an instance of the net runtime the new api gives a fine grain control on the behavior of the runtime with regards to multithreading memory allocation and assembly loading it was initially developed to efficiently host the runtime in microsoft sql server which implements its own scheduler and memory manager new personalization features for asp net such as support for themes skins master pages and webparts net micro framework a version of the net framework related to the smart personal objects technology initiative membership provider partial classes nullable types anonymous methods iterators data tables common language runtime clr 2 0 language support for generics built directly into the net clr net framework 2 0 is supported on windows 98 me 2000 with service pack 3 or higher xp with service pack 2 or higher server 2003 server 2008 and server 2008 r2 6 an unofficial backport for windows 95 was created in 2024 46 47 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 edit the net framework 2 0 service pack 1 was released on 19 november 2007 48 it requires windows 2000 with sp4 service pack 2 edit the net framework 2 0 service pack 2 was released on 11 august 2008 49 it requires windows 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 50 net framework 3 0 edit elements of the microsoft net framework version 3 0 net framework 3 0 formerly called winfx 51 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 clr as net framework 2 0 52 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 windows presentation foundation wpf formerly code named avalon a new user interface subsystem and api based on xaml markup language which uses 3d computer graphics hardware and direct3d technologies 53 windows communication foundation wcf formerly code named indigo a service oriented messaging system which allows programs to interoperate locally or remotely similar to web services windows workflow foundation wf allows building task automation and integrated transactions using workflows windows cardspace formerly code named infocard a software component which securely stores a person s digital identities and provides a unified interface for choosing the identity for a particular transaction such as logging into a website net framework 3 0 is supported on windows xp server 2003 vista server 2008 and server 2008 r2 6 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 edit net framework 3 0 service pack 1 was released on 19 november 2007 54 service pack 2 edit net framework 3 0 service pack 2 was released on 11 august 2008 55 net framework 3 5 edit version 3 5 of the net framework was released on 19 november 2007 as with net framework 3 0 version 3 5 uses common language runtime clr 2 0 that is the same version as net framework version 2 0 in addition net framework 3 5 also installs net framework 2 0 sp1 and 3 0 sp1 with the later 3 5 sp1 instead installing 2 0 sp2 and 3 0 sp2 which adds some methods and properties to the bcl classes in version 2 0 which are required for version 3 5 features such as language integrated query linq these changes do not affect applications written for version 2 0 however 56 as with previous versions a new net compact framework 3 5 was released 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