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នេះជាជំនាន់ដំបូងនៃ NET Framework បានចេញផ្សាយឲ្យប្រើប្រាស់ជាផ្លូវការនៅ ថ្ងៃទី ១៣ ខែ កុម្ភៈ ឆ្នាំ ២០០២ និងអាចរកបានសម្រាប់ [[Windows 98]], [[Windows|ME]], [[Windows|NT 4.0]], [[Windows|2000]], និង [[Windows|XP]] ។ [[Microsoft]] បានស្ថាបនាជំនាន់នេះ ហើយបញ្ចប់ជាស្ថាពរនៅ ថ្ងៃទី ១០ ខែ កក្កដា ឆ្នាំ ២០០៧ និង ធ្វើការកែតម្រូវបន្ថែមបញ្ចប់នៅ ថ្ងៃទី ១៤ ខែ កក្កដា ឆ្នាំ ២០០៩ ជាមួយនឹងការចាប់កំហុសនៃ XP [[Windows XP Media Center|Media Center]] និង [[Windows XP Tablet PC Edition|Tablet PC]] ។<ref name="MS_DotNET_EoL">{{cite web |url=http://support.microsoft.com/lifecycle/search/?sort=PNα=.NET+Framework |title=Microsoft Product Lifecycle Search |work=Microsoft |accessdate=25 January 2008|archiveurl=http://www.webcitation.org/5jZfjU0F1|archivedate=5 September 2009|deadurl=no}}</ref>
==.NET Framework 1.1==
This is the first major .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 Microsoft [[Visual Studio .NET]] (released as 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. Since .NET 1.1 is a component of Windows Server 2003, extended support for .NET 1.1 on Server 2003 will run out with that of the OS – currently 14 July 2015. .NET 1.1 is the last available version for [[Windows NT 4.0]].
If .NET Framework 1.0 is removed, installing only .NET Framework 1.1 also provides the system support for 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 |archiveurl=http://web.archive.org/web/20120724012426/http://msdn.microsoft.com/en-us/netframework/aa497323.aspx |archivedate=July 24, 2012 }}</ref>
===Changes in 1.1 in comparison with 1.0===
* Built-in support for mobile [[ASP.NET]] controls. Previously available as an add-on for .NET Framework, now part of the framework.
* Security changes – enable Windows Forms assemblies to execute in a semi-trusted manner from the Internet, and enable [[Code Access Security]] in ASP.NET applications.
* Built-in support for [[ODBC]] and [[Oracle|databases]]. Previously available as an add-on for .NET Framework 1.0, now part of the framework.
* [[.NET Compact Framework]] – a version of the .NET Framework for small devices.
* Internet Protocol version 6 ([[IPv6]]) support.
* Numerous [[Application programming interface|API]] changes.
==.NET Framework 2.0==
Released with [[Visual Studio 2005]], [[Microsoft SQL Server 2005]], and [[BizTalk]] 2006.
* The 2.0 Redistributable Package can be downloaded for free from [http://www.microsoft.com/downloads/details.aspx?FamilyID=0856eacb-4362-4b0d-8edd-aab15c5e04f5&DisplayLang=en Microsoft], and was published on 22 January 2006.
* The 2.0 Software Development Kit (SDK) can be downloaded for free from [http://www.microsoft.com/downloads/details.aspx?FamilyID=fe6f2099-b7b4-4f47-a244-c96d69c35dec&DisplayLang=en Microsoft].
* It is included as part of [[Visual Studio 2005]] and [[Microsoft SQL Server 2005]].
* Version 2.0 without any Service Pack is the last version with support for [[Windows 98]] and [[Windows Me]]. Version 2.0 with Service Pack 2 is the last version with official support for [[Windows 2000]] although there have been some unofficial workarounds published online 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/|archiveurl=http://www.webcitation.org/62ENcPdNi|archivedate=6 October 2011|accessdate=6 October 2011}}</ref> Version 2.0 with Service Pack 2 requires [[Windows 2000]] with SP4 plus KB835732 or KB891861 update, [[Windows XP]] with SP2 or later and [[Windows Installer]] 3.1 (KB893803-v2)
* It shipped with [[Windows Server 2003 R2]] (not installed by default).
===Changes in 2.0 in comparison with 1.1===
* Generics
* Language support for [[Generic programming|generics]] built directly into the .NET CLR.
* Full [[64-bit|computing]] support for both the [[x64]] and the [[IA-64]] hardware platforms.
* Numerous API changes.
* [[Microsoft SQL Server]] integration – .NET 2.0, VS 2005, and SQL Server 2005 are all tied together. This means that instead of using [[Transact-SQL|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 (computer architecture)|multithreading]], memory allocation, assembly loading and more ([http://winfx.msdn.microsoft.com/library/en-us/dv_fxunmanref/html/703b8381-43db-4a4d-9faa-cca39302d922.asp detailed reference]). It was initially developed to efficiently host the runtime in [[Microsoft SQL Server]], which implements its own scheduler and memory manager.
* Many additional and improved ASP.NET web controls.
* New data controls with declarative data binding.
* 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
* Introduces Common Language Runtime 2.0
==.NET Framework 3.0==
.NET Framework 3.0, formerly called WinFX,<ref>[http://blogs.msdn.com/somasegar/archive/2006/06/09/624300.aspx WinFX name change announcement] {{WebCite|url=http://www.webcitation.org/5PlRtTPmO|date =21 June 2007}}</ref> was released on 21 November 2006. It includes a new set of [[managed code]] APIs that are an integral part of [[Windows Vista]] and [[Windows Server 2008]] operating systems. 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 |accessdate=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:
* [[Windows Presentation Foundation]] (WPF), formerly code-named Avalon; a new [[user interface]] subsystem and [[Application programming interface|API]] based on [[XML]] and [[vector graphics]], which uses [[3D computer graphics]] hardware and [[Direct3D]] technologies. See [http://msdn.microsoft.com/en-us/library/ms754130.aspx WPF SDK] for developer articles and documentation on WPF.
* [[Windows Communication Foundation]] (WCF), formerly code-named Indigo; a service-oriented messaging system which allows programs to interoperate locally or remotely similar to [[web service]]s.
* [[Windows Workflow Foundation]] (WF) allows for building of task automation and integrated transactions using [[workflow]]s.
* [[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 in to a website.
==.NET Framework 3.5==
Version 3.5 of the .NET Framework was released on 19 November 2007, but it is not included with [[Windows Server 2008]]. 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|Language Integrated Query (LINQ)]]. These changes do not affect applications written for version 2.0, however.<ref>{{cite web | url = http://www.hanselman.com/blog/CommentView.aspx?guid=7cd75505-192f-4fef-b617-e47e1e2cb94b | title = Catching RedBits differences in .NET 2.0 and .NET 2.0SP1 | accessdate =1 June 2008| archiveurl= http://web.archive.org/web/20080430003858/http://www.hanselman.com/blog/CommentView.aspx?guid=7cd75505-192f-4fef-b617-e47e1e2cb94b| archivedate= 30 April 2008<!--Added by DASHBot-->}}</ref>
As with previous versions, a new .NET Compact Framework 3.5 was released in tandem with this update in order to provide support for additional features on Windows Mobile and [[Windows Embedded CE]] devices.
The source code of the [[Base 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 |accessdate=15 September 2010| archiveurl= http://web.archive.org/web/20100907233621/http://weblogs.asp.net/scottgu/archive/2007/10/03/releasing-the-source-code-for-the-net-framework-libraries.aspx| archivedate= 7 September 2010<!--Added by DASHBot-->}}</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 | accessdate =7 September 2008| archiveurl= http://web.archive.org/web/20080904095627/http://msdn.microsoft.com/vstudio/products/cc533447.aspx| archivedate= 4 September 2008<!--Added by DASHBot-->}}</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).
====.NET Framework 3.5 SP1 Client Profile====
For the .NET Framework 3.5 SP1 there is also a new variant of the .NET Framework, called the ".NET Framework Client Profile", which at 28 MB is significantly smaller than the full framework and only installs components that are the most relevant to [[desktop computer|desktop]] applications.<ref>{{cite web
|url=http://blogs.msdn.com/bclteam/archive/2008/05/21/net-framework-client-profile-justin-van-patten.aspx
|title=.NET Framework Client Profile
|date=21 May 2008
|accessdate=30 September 2008
|author=Justin Van Patten
|work=BCL Team Blog
|publisher=MSDN Blogs
| archiveurl= http://web.archive.org/web/20081207211314/http://blogs.msdn.com/bclteam/archive/2008/05/21/net-framework-client-profile-justin-van-patten.aspx| archivedate= 7 December 2008<!--Added by DASHBot-->}}</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 MB.<ref>{{cite web
|url=http://blogs.msdn.com/jaimer/archive/2008/08/20/client-profile-explained.aspx
|title=Client profile explained..
|date=20 August 2008
|accessdate=15 February 2009
|author=Jaime Rodriguez
| archiveurl= http://web.archive.org/web/20090205153531/http://blogs.msdn.com/jaimer/archive/2008/08/20/client-profile-explained.aspx| archivedate= 5 February 2009<!--Added by DASHBot-->}}</ref>
==.NET Framework 4==
Key focuses for this release are:
* [[Parallel Extensions]] to improve support for [[parallel computing]], which target [[multi-core]] or [[Distributed computing|distributed]] systems.<ref>{{cite web
| url = http://blogs.msdn.com/somasegar/archive/2007/05/09/the-world-of-multi-and-many-cores.aspx
| title = The world of multi and many cores
| author = [[S. Somasegar]]
| accessdate=1 June 2008
| archiveurl = http://www.webcitation.org/5Pmrj6emZ |archivedate = 22 June 2007| deadurl=no}}</ref> To this end, technologies like PLINQ (Parallel [[Language Integrated Query|LINQ]]),<ref>{{cite web
| url = http://msdn.microsoft.com/magazine/cc163329.aspx
| title = Parallel LINQ: Running Queries On Multi-Core Processors
| accessdate =2 June 2008
}}</ref> a parallel implementation of the LINQ engine, and [[Task Parallel Library]], which exposes parallel constructs via method calls.,<ref>{{cite web
| url = http://msdn.microsoft.com/magazine/cc163340.aspx
| title = Parallel Performance: Optimize Managed Code For Multi-Core Machines
| accessdate =2 June 2008
}}</ref> are included.
* New [[Visual Basic .NET]] and [[C Sharp (programming language)|C#]] language features, such as implicit line continuations, [[dynamic dispatch]], [[named parameter]]s, and [[Parameter (computer science)#Default arguments|optional parameters]].
* Support for [http://msdn.microsoft.com/en-us/devlabs/dd491992.aspx Code Contracts.]
* Inclusion of new types to work with [[arbitrary-precision arithmetic]] ([http://msdn.microsoft.com/en-us/library/system.numerics.biginteger.aspx System.Numerics.BigInteger]) and [[complex number]]s ([http://msdn.microsoft.com/library/system.numerics.complex(VS.100).aspx System.Numerics.Complex]).
* Introduce Common Language Runtime (CLR) 4.0.
===History===
Microsoft announced the intention to ship .NET Framework 4 on 29 September 2008. The [http://www.microsoft.com/downloads/details.aspx?FamilyID=ee2118cc-51cd-46ad-ab17-af6fff7538c9&displaylang=en Public Beta] was released on 20 May 2009.<ref name=v4>{{cite web | url = http://blogs.msdn.com/somasegar/archive/2009/05/18/visual-studio-2010-and-net-fx-4-beta-1-ships.aspx | author = S. Somasegar | title = Visual Studio 2010 and .NET FX 4 Beta 1 ships! |accessdate =25 May 2009|archiveurl=http://www.webcitation.org/5h5lV7362|archivedate=27 May 2009|deadurl=no}}</ref>
On 28 July 2009, a [http://msdn.microsoft.com/en-us/devlabs/ee334183.aspx second release] of the .NET Framework 4 beta was made available with experimental [[software transactional memory]] support.<ref>{{cite web
| url = http://blogs.msdn.com/somasegar/archive/2009/07/27/stm-net-in-devlabs.aspx
| title = STM.NET on DevLabs
| date=27 July 2008
| accessdate =6 August 2008
|archiveurl=http://www.webcitation.org/5iwEjbaov|archivedate=10 August 2009|deadurl=no}}</ref> This functionality is not available in the final version of the framework.
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 | accessdate =20 October 2009| archiveurl= http://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| archivedate= 22 October 2009<!--Added by DASHBot-->}}</ref> At the same time, Microsoft announced the expected launch date for .NET Framework 4 as the 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 | author = Rob Caron | work = [[MSDN]] Blogs | accessdate =13 January 2010| archiveurl= http://web.archive.org/web/20100117135051/http://blogs.msdn.com/robcaron/archive/2010/01/13/9948172.aspx| archivedate= 17 January 2010<!--Added by DASHBot-->}}</ref>
On 10 February 2010, a [[release candidate]] was published: [http://www.microsoft.com/downloads/details.aspx?FamilyID=a9ef9a95-58d2-4e51-a4b7-bea3cc6962cb&displaylang=en Version:RC].<ref>http://www.infoworld.com/d/developer-world/microsoft-offers-visual-studio-2010-release-candidate-643 {{Wayback|df=yes|url=http://www.infoworld.com/d/developer-world/microsoft-offers-visual-studio-2010-release-candidate-643|date =20100521085427}}</ref>
On 12 April 2010, the [http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=0a391abd-25c1-4fc0-919f-b21f31ab88b7 final version] of .NET Framework 4.0 was launched alongside the final release of [[Microsoft Visual Studio 2010]].
On 18 April 2011, version 4.0.1 was released supporting some customer-demanded fixes for [[Windows Workflow Foundation]].<ref>{{cite web|url=http://support.microsoft.com/kb/2495593 |title=Update 4.0.1 for Microsoft .NET Framework 4 - Design-Time Update for Visual Studio 2010 SP1 |publisher=Support.microsoft.com |date=2012-06-25 |accessdate=2013-01-16}}</ref> Its design-time component, which requires Visual Studio 2010 SP1, adds a workflow state machine designer.<ref>{{cite web|url=http://blogs.msdn.com/b/endpoint/archive/2011/04/18/microsoft-net-framework-4-platform-update-1.aspx |title=Microsoft .NET Framework 4 Platform Update 1 - The .NET Endpoint - Site Home - MSDN Blogs |publisher=Blogs.msdn.com |date=2011-04-19 |accessdate=2013-01-16}}</ref>
On 19 October 2011, version 4.0.2 was released supporting some new features of [[Microsoft SQL Server]].<ref>{{cite web|url=http://support.microsoft.com/kb/2544514 |title=Update 4.0.2 for Microsoft .NET Framework 4 – Runtime Update |publisher=Support.microsoft.com |date=2012-06-14 |accessdate=2013-01-16}}</ref>
===Windows Server AppFabric===
After the release of the .NET Framework 4, Microsoft released a set of enhancements, named [[AppFabric|Windows Server AppFabric]],<ref>[http://blogs.iis.net/appfabric/archive/2010/06/07/windows-server-appfabric-now-generally-available.aspx Windows Server AppFabric now Generally Available : AppFabric Blog : The Official Microsoft IIS Site]</ref> for [[application server]] capabilities in the form of AppFabric Hosting<ref name="dsource">{{cite web | url = http://www.devsource.com/c/a/Architecture/Dublin-App-Server-coming-toNET-40/ | title = 'Dublin' App Server coming to .NET 4 | work = DevSource | accessdate =27 April 2009}}</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 | accessdate =27 April 2009| archiveurl= http://web.archive.org/web/20090510131816/http://blogs.msdn.com/architectsrule/archive/2008/10/01/net-framework-4-0-and-dublin-application-server.aspx| archivedate= 10 May 2009<!--Added by DASHBot-->}}</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]]) |accessdate=15 August 2012}}</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]] |accessdate=15 August 2012}}</ref> The .NET Framework 4.5 is only supported on [[Windows Vista]] or later.<ref>[http://www.microsoft.com/download/en/details.aspx?id=30653 Microsoft .NET Framework 4.5]</ref><ref>[http://www.microsoft.com/visualstudio/11/en-us/downloads#net-45 Standalone Installers .NET 4.5]</ref> The .NET Framework 4.5 uses Common Language Runtime 4.0, with some additional runtime features.<ref>[http://msdn.microsoft.com/en-us/library/bb822049.aspx .NET Framework Versions and Dependencies]</ref>
=== .NET for Metro style apps ===
[[Metro (design language)|Metro-style]] [[application software|apps]] are designed for specific form factors and leverage the power of the Windows operating system. A subset of the .NET Framework is available for building Metro style apps for [[Windows 8]] using [[C Sharp (programming language)|C#]] or [[Visual Basic]]. This subset is called ''.NET APIs for apps''.
The version of .NET Framework, runtime and libraries, used for Metro style apps is a part of the new [[Windows Runtime]], which is the new platform and application model for [[Metro (design language)|Metro style apps]]. It is an ecosystem that houses many platforms and languages, including [[.NET Framework]], [[C++]] and [[HTML5]]/[[JavaScript]].
=== Framework Core ===
==== Core Features ====
*Ability to limit how long the [[regular expression]] engine will attempt to resolve a regular expression before it times out.
*Ability to define the culture for an [[application domain]].
*Console support for [[Unicode]] ([[UTF-16]]) encoding.
*Support for versioning of cultural string ordering and comparison data.
*Better performance when retrieving resources.
*[[Zip (file format)|Zip]] compression improvements to reduce the size of a compressed file.
*Ability to customize a [[reflection context]] to override default [[reflection (computer programming)|reflection]] behavior through the '''CustomReflectionContext''' class.
==== Managed Extensibility Framework (MEF) ====
==== Asynchronous operations ====
In the .NET Framework 4.5, new asynchronous features were added to the C# and Visual Basic languages. These features add a task-based model for performing asynchronous operations.
=== ASP.NET ===
*Support for new [[HTML5]] form types.
*Support for model binders in [[Web Forms]]. These let you bind data controls directly to [[data-access]] methods, and automatically convert user input to and from [[.NET Framework]] [[data types]].
*Support for unobtrusive [[JavaScript]] in client-side validation scripts.
*Improved handling of client script through [[bundle (software distribution)|bundling]] and [[minification (programming)|minification]] for improved page performance.
*Integrated encoding routines from the [[AntiXSS]] library (previously an [[external library]]) to protect from cross-site [[scripting attacks]].
*Support for [[WebSocket]] protocol.
*Support for reading and writing [[HTTP]] requests and responses [[Ajax (programming)|asynchronously]].
*Support for asynchronous modules and handlers.
*Support for [[content distribution network]] ([[Content delivery network|CDN]]) fallback in the [[ScriptManager]] control.
=== Networking ===
#Provides a new [[programming interface]] for [[HTTP]] applications: System.Net{{Not a typo|.}}Http namespace and System.Net.Http{{Not a typo|.}}Headers namespaces are added
#Improved [[internationalization]] and [[IPv6]] support
#RFC-compliant [[URI]] support
#Support for [[internationalized domain name]] (IDN) parsing
#Support for [[Email Address Internationalization]] (EAI)
==.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]]|accessdate=18 November 2013|date=17 October 2013}}</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]]|accessdate=18 November 2013|date=12 October 2013}}</ref> and is included with [[Windows 8.1]] and [[Windows Server 2012 R2]].
==See also==
* [[.NET Framework]]
* [[List of .NET Framework versions]]
==References==
{{Reflist|30em}}
{{.NET}}
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