Net framework version windows server 2008 r2

We have windows 2008 SP2 and Windows 2008 R2 installed on two servers respectively. The Windows 2008 SP2 has .Net Framework 3.5 with SP1. Checking the the Windows 2008 R2 box, it shows as .Net Framework 3.5 only. No SP1. Any body knows if R2 comes with 3.5 SP1 included or if not whether we can install the SP1 for 3.5 on it.
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  • We have windows 2008 SP2 and Windows 2008 R2 installed on two servers respectively. The Windows 2008 SP2 has .Net Framework 3.5 with SP1. Checking the the Windows 2008 R2 box, it shows as .Net Framework 3.5 only. No SP1. Any body knows if R2 comes with 3.5 SP1 included or if not whether we can install the SP1 for 3.5 on it.

    Thanks,
    yabay.

Answers

  • Hi Ged,

    As far as I know, Windows Server 2008 R2 includes .Net Framework 3.5 with SP1. You need to install it from —> Server Manager —> Features —> .Net Framework 3.5.1 Features.

    By default, the system comes with .Net Framwork Setup v2.0.50727 installed. You can verify it via the following registry key
    HKEY_LOCAL_MACHINESOFTWAREMicrosoftNET Framework SetupNDP
    — Version REG_SZ 2.0.50727

    Hope it helps.

    Regards,
    Wilson Jia

    This posting is provided «AS IS» with no warranties, and confers no rights.

    • Marked as answer by

      Monday, November 16, 2009 4:26 PM

Источник

Программная платформа .NET Framework была разработана компанией Microsoft для того, чтобы дать возможность разработчикам абстрагироваться от системного окружения конкретного компьютера, на котором будет исполняться их программа. В этом случае не будет иметь значения какая операционная система установлена, какой процессор и другое аппаратное обеспечение используется — главное, чтобы на компьютере была установлена среда .NET Framework, которая обеспечивает исполнение кода и взаимодействие с необходимыми компонентами окружения. Для работы с этой платформой были разработаны или адаптированы специальные языки программирования C#.NET, VB.NET, C++.NET, J#.NET, F#.NET и т.д.

Достаточно большое количество программ написано под эту платформу, поэтому нужно знать, как установить ее на сервер.

.NET Framework актуальной версии (4.x) уже включен на серверах Windows, развернутых из наших шаблонов. Если требуется включить предыдущую версию (3.5) или же сервер развернут из собственного шаблона/установлен из дистрибутива, можно воспользоваться нижеследующей инструкцией.

Установка компонента .NET Framework в ОС Windows Server

Включение компонента .NET Framework в OC Windows Server возможно с использованием Windows Update или с использованием локального хранилища компонентов (потребуются файлы с дистрибутива ОС). Рассмотрим оба варианта.

Вариант 1

Самый простой и быстрый способ, при наличии подключения к сети Интернет, это установка компонента .NET Framework 3.5 с сервера Microsoft Windows Update (актуально для Windows Server 2008R2/2012R2/2016/2019).

Запускаем PowerShell с правами администратора: Пуск — правый клик по ярлыку Windows Powershell — Запуск от имени Администратора (Run as Administrator):

64_pic11

В открывшемся окне PowerShell набираем команду:
DISM /Online /Enable-Feature /FeatureName:NetFx3 /All

Eсли установка производится на Windows Server 2008R2:
DISM /Online /Enable-Feature /FeatureName:NetFx3

Нажимаем Enter и ожидаем завершения установки:

16_pic10

Вариант 2

Для установки с использованием локального хранилища (или дистрибутива ОС Windows) через графический интерфейс (Windows Server 2012R2/2016/2019 ):

Запускаем Диспетчер серверов (Server Manager), нажимаем Управление (Manage) – Добавить роли и компоненты (Add Roles and Features):

14_pic1-1

В появившемся окне нажимаем Далее (Next):

57_pic2

В окне Выбор типа установки (Select installation type) убеждаемся, что выбран пункт установка ролей и компонентов (Role-based or feature-based installation), нажимаем Далее (Next):

100_pic3

Выбор целевого сервера (Select destination server) – проверяем, что в списке выбран требуемый сервер, нажимаем Далее (Next):

29_pic4

Пропускаем Выбор ролей сервера (Select server roles), нажимаем Далее (Next):

90_pic5-1

В окне Выбор компонентов (Select features) находим в списке требуемую версию .NET Framework и отмечаем галкой, нажимаем Далее (Next):

45_pic6

В случае установки актуальной версии .NET Framework (4.x) в данном окне можно нажимать кнопку Установить (Install), после чего начнется процесс инсталляции из локального хранилища. Если же мы устанавливаем предыдущую версию (3.5), то появится предупреждение, что необходимые для установки файлы отсутствуют и нужно указать путь к данным файлам. Понадобится либо дистрибутив установленной версии дистрибутива ОС Windows, либо копия папки SourcesSxS с этого дистрибутива. Нажимаем на ссылку Указать альтернативный исходный путь (Specify an alternate source path):

32_pic7

В открывшейся форме указываем путь к папке SourcesSxS дистрибутива текущей версии (или копии этой папки – в нашем примере папка скопирована на локальный диск в c:tempsxs), нажимаем ОК:

52_pic8

Вернувшись на форму Подтверждение компонентов установки (Confirm installation selections) нажимаем Установить (Install) и ожидаем окончания установки. Закрываем форму:

53_pic9

Установка на Windows server 2008R2 также производится через Диспетчер серверов:

Запускаем Диспетчер серверов, переходим в раздел Компоненты, нажимаем Добавить компоненты:

86_pic12

В списке компонентов находим и ставим галку на .NET Framework, нажимаем Далее:

29_pic13

В следующем окне нажимаем кнопку Установить:

9_pic14

Дожидаемся успешного окончания установки и закрываем окно:

81_pic15

Установка актуальной версии .NET Framework (4.x) в ОС Windows Server 2008R2 через добавление компонентов не работает. Для инсталляции потребуется скачать автономный установщик с сайта Microsoft (например, по ссылке https://www.microsoft.com/ru-RU/download/details.aspx?id=55167) и установить как обычную программу.

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Источник
title description ms.date helpviewer_keywords ms.assetid

Install the .NET Framework developer pack or redistributable

Developers can download and install the .NET Framework developer pack and targeting pack. You can include the .NET Framework redistributable with your apps.

02/23/2022

.NET Framework redistributable package, downloading

.NET Framework, installing

installing .NET Framework

installation [.NET Framework]

daf9d9d5-84ac-4bd9-a864-27665ffd0f5c

Install .NET Framework for developers

.NET is an integral part of many apps running on Windows and provides common functionality for those apps to run. For developers, .NET Framework provides a comprehensive and consistent programming model for building apps that have visually stunning user experiences and seamless and secure communication.

[!NOTE]
This article is intended for developers who either want to install .NET Framework on their own system or who want to install it with their applications. For users interested in installing .NET Framework, see the individual articles that discuss installing .NET Framework on specific operating systems, such as Install .NET Framework on Windows 10 and Windows Server 2016.

This article provides links for installing all versions of .NET Framework from .NET Framework 4.5 to .NET Framework 4.8.1 on your computer. If you’re a developer, you can also use these links to download and redistribute .NET Framework with your apps. For information on deploying a version of .NET Framework with your app, see .NET Framework deployment guide for developers.

[!INCLUDEnet_retirement]

[!INCLUDEnet-framework-4-versions]

For more information about versions of .NET Framework and how to determine which versions are installed on a computer, see Versions and Dependencies and How to: Determine Which .NET Framework Versions Are Installed.

[!NOTE]
For information on .NET Framework 3.5, see Install the .NET Framework 3.5 on Windows 11, Windows 10, Windows 8.1, and Windows 8.

Use the following table for quick links, or read further for details. To view the system requirements for .NET Framework before installation, see System Requirements. For help with troubleshooting, see Troubleshooting.

.NET Framework version Installer (Developer Pack and Runtime) Platform support
4.8.1 .NET Framework 4.8.1 Included in:

Visual Studio 2022 (version 17.3)

You can install on:

Windows 11
Windows 10 version 21H2
Windows 10 version 21H1
Windows 10 version 20H2
Windows Server 2022

(for a full list, see system requirements)
4.8 .NET Framework 4.8 Included in:

Windows 11
Windows 10 May 2019 Update (and later versions)
Visual Studio 2019 (version 16.3)

You can install on:

Windows 10 October 2018 Update
Windows 10 April 2018 Update
Windows 10 Fall Creators Update
Windows 10 Creators Update
Windows 10 Anniversary Update
Windows 8.1 and earlier
Windows Server 2022
Windows Server 2019
Windows Server, Version 1809
Windows Server, Version 1803

(for a full list, see system requirements)
4.7.2 .NET Framework 4.7.2 Included in:

Windows 10 October 2018 Update
Windows 10 April 2018 Update
Windows Server 2019
Windows Server, Version 1809
Windows Server, Version 1803
Visual Studio 2017 (15.8 update)

You can install on:

Windows 10 Fall Creators Update
Windows 10 Creators Update
Windows 10 Anniversary Update
Windows 8.1 and earlier
Windows Server, version 1709 and earlier

(for a full list, see system requirements)
4.7.1 .NET Framework 4.7.1 Included in:

Windows 10 Fall Creators Update
Windows Server, version 1709
Visual Studio 2017 (15.5 update)

You can install on:

Windows 10 Creators Update
Windows 10 Anniversary Update
Windows 8.1 and earlier
Windows Server 2016 and earlier
(for a full list, see system requirements)
4.7 .NET Framework 4.7 Included in:

Windows 10 Creators Update
Visual Studio 2017 (15.3 update)

You can install on:

Windows 10 Anniversary Update
Windows 8.1 and earlier
Windows Server 2016 and earlier
(for a full list, see system requirements)
4.6.2 .NET Framework 4.6.2 Included in:

Windows 10 Anniversary Update

You can install on:

Windows 10 November Update
Windows 10
Windows 8.1 and earlier
Windows Server 2012 R2 and earlier
(for a full list, see system requirements)
4.6.1 .NET Framework 4.6.1 Included in:

Visual Studio 2015 Update 2

You can install on:

Windows 10
Windows 8.1 and earlier
Windows Server 2012 R2 and earlier
(for a full list, see system requirements)
4.6 .NET Framework 4.6 Included in:

Windows 10
Visual Studio 2015

You can install on:

Windows 8.1 and earlier
Windows Server 2012 R2 and earlier
(for a full list, see system requirements)
4.5.2 .NET Framework 4.5.2 You can install on:

Windows 8.1 and earlier
Windows Server 2012 R2 and earlier
(for a full list, see system requirements)
4.5.1 .NET Framework 4.5.1 Included in:

Windows 8.1
Windows Server 2012 R2
Visual Studio 2013

You can install on:

Windows 8 and earlier
Windows Server 2012 and earlier
(for a full list, see system requirements)
4.5 .NET Framework 4.5 Included in:

Windows 8
Windows Server 2012
Visual Studio 2012

You can install on:

Windows 7 and earlier
Windows Server 2008 SP2 and earlier
(for a full list, see system requirements)

[!INCLUDE net-framework-vs]

You can install the Developer Pack for a specific version of the .NET Framework, if one is available, on all supported platforms.

Developer Packs only target a specific version of .NET Framework and don’t include previous versions. For example, the .NET Framework 4.8 Developer Pack doesn’t include .NET Framework 4.7.

You can install the Web or Offline installer on:

  • Windows 8.1 and earlier

  • Windows Server 2012 R2 and earlier

For a full list, see System Requirements.

For a general introduction to .NET Framework for both users and developers, see Getting Started. For information about deploying .NET Framework with your app, see the deployment guide. To read about the architecture and key features of .NET Framework, see the overview.

Installation choices

Install a developer targeting pack to develop against the most recent version of .NET Framework in Visual Studio or another development environment, or download the .NET Framework redistributable for distribution with your app or control.

To install the .NET Framework Developer Pack or Targeting Pack

A targeting pack lets your app target a specific version of .NET Framework when developing in Visual Studio and some other development environments. A developer pack includes a specific version of .NET Framework and its accompanying SDK along with its corresponding targeting pack.

The developer pack for .NET Framework 4.5.1 or 4.5.2, the targeting pack for .NET Framework 4.6, and the developer pack for .NET Framework 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, or 4.8 provides a particular .NET Framework’s version of the reference assemblies, language packs, and IntelliSense files for use in an integrated development environment such as Visual Studio. If you’re using Visual Studio, the developer pack or targeting pack also adds the installed version of .NET Framework to the target choices when you create a new project. Choose one of the following:

  • .NET Framework 4.8.1
  • .NET Framework 4.8
  • .NET Framework 4.7.2
  • .NET Framework 4.7.1
  • .NET Framework 4.7
  • .NET Framework 4.6.2
  • .NET Framework 4.6.1
  • .NET Framework 4.6
  • .NET Framework 4.5.2 to install version 4.5.2 on Windows 8.1 or earlier, Visual Studio 2013, Visual Studio 2012, or other IDEs.
  • .NET Framework 4.5.1 to install version 4.5.1 on Visual Studio 2012 or other IDEs.

From the developer pack download page, choose Download. Next, choose Run or Save, and follow the instructions when prompted. You can also install the developer pack or targeting pack for a specific version of .NET Framework by selecting it from the optional components in the .NET desktop development workload in the Visual Studio Installer, as the following figure shows.

:::image type=»content» source=»media/guide-for-developers/visual-studio-framework.png» alt-text=»Visual Studio installer with .NET Framework options selected.» lightbox=»media/guide-for-developers/visual-studio-framework-large.png»:::

When you target a particular version of .NET Framework, your application is built by using the reference assemblies that are included with that version’s developer pack. At run time, assemblies are resolved from the Global Assembly Cache, and the reference assemblies are not used.

When building an application from Visual Studio or using MSBuild from the command line, MSBuild may display error MSB3644, «The reference assemblies for framework «framework-version» were not found.» To address the error, download the developer pack or the targeting pack for that version of .NET Framework.

To install or download the .NET Framework redistributable

Installers download .NET Framework components for an app or control that targets those versions of .NET Framework. These components must be installed on each computer where the app or control runs. These installers are redistributable, so you can include them in the setup program for your app.

The download page is provided in several languages, but most of the downloads are provided in English only. For additional language support, you must install a language pack.

Two types of redistributable installers are available:

  • Web installer (web bootstrapper) downloads the required components and the language pack that matches the operating system of the installation computer from the web. This package is much smaller than the offline installer but requires a consistent Internet connection. You can download the standalone language packs to install additional language support.

  • Offline installer (standalone redistributable) contains all the required components for installing .NET Framework but doesn’t contain language packs. This download is larger than the web installer. The offline installer doesn’t require an internet connection. After you run the offline installer, you can download the standalone language packs to install language support. Use the offline installer if you can’t rely on having a consistent Internet connection.

Both web and offline installers are designed for x86-based and x64-based computers (see system requirements), but do not support Itanium-based computers.

  1. Open the download page for the .NET Framework version you want to install:

    • .NET Framework 4.8.1
    • .NET Framework 4.8
    • .NET Framework 4.7.2
    • .NET Framework 4.7.1
    • .NET Framework 4.7
    • .NET Framework 4.6.2
    • .NET Framework 4.6.1
    • .NET Framework 4.6
    • .NET Framework 4.5.2
    • .NET Framework 4.5.1
    • .NET Framework 4.5

  2. Select the language for the download page. This option does not download the localized resources of .NET Framework; it only affects the text displayed on the download page.

  3. Choose Download.

  4. If prompted, select the download that matches your system architecture, and then choose Next.

  5. When the download prompt appears, do one of the following:

    • If you want to install .NET Framework on your computer, choose Run, and then follow the prompts on your screen.

    • If you want to download .NET Framework for redistribution, choose Save, and then follow the prompts on your screen.

  6. If you want to download resources for additional languages, follow the instructions in the next section to install one or more language packs.

[!NOTE]
If you encounter any problems during the installation, see Troubleshooting.

Installation notes:

  • .NET Framework 4.5 and later versions replace .NET Framework 4.0. When you install these versions on a system that has .NET Framework 4 installed, the assemblies are replaced.

  • Uninstalling .NET Framework 4.5 or later versions also removes pre-existing .NET Framework 4 files. If you want to go back to .NET Framework 4, you must reinstall it and any updates to it. See Installing the .NET Framework 4.

  • You must have administrative credentials to install .NET Framework 4.5 or later versions.

  • The .NET Framework 4.5 redistributable was updated on October 9, 2012 to correct an issue related to an improper timestamp on a digital certificate, which caused the digital signature on files produced and signed by Microsoft to expire prematurely. If you previously installed the .NET Framework 4.5 redistributable package dated August 16, 2012, we recommend that you update your copy with the latest redistributable from the .NET Framework download page. For more information about this issue, see Microsoft Security Advisory 2749655.

To install language packs

Language packs are executable files that contain the localized resources (such as translated error messages and UI text) for supported languages. If you don’t install a language pack, .NET Framework error messages and other text are displayed in English. Note that the web installer automatically installs the language pack that matches your operating system, but you can download additional language packs to your computer. The offline installers don’t include any language packs.

[!IMPORTANT]
The language packs don’t contain the .NET Framework components that are required to run an app, so you must run the web or offline installer before you install a language pack. If you have already installed a language pack, uninstall it, install the .NET Framework, and then reinstall the language pack.

  1. Open the language pack download page for the .NET Framework version you’ve installed:

    • .NET Framework 4.8.1
    • .NET Framework 4.8
    • .NET Framework 4.7.2
    • .NET Framework 4.7.1
    • .NET Framework 4.7
    • .NET Framework 4.6.2
    • .NET Framework 4.6.1
    • .NET Framework 4.6
    • .NET Framework 4.5.2
    • .NET Framework 4.5.1
    • .NET Framework 4.5

  2. In the language list, choose the language you want to download, and wait a few seconds for the page to reload in that language.

  3. Choose Download.

The following table lists the supported languages.

Language Culture
Arabic ar
Czech cs
Danish da
Dutch nl
Finnish fi
English (USA) en-US
French fr
German de
Greek el
Hebrew he
Hungarian hu
Italian it
Japanese ja
Korean ko
Norwegian no
Polish pl
Portuguese (Brazil) pt-BR
Portuguese (Portugal) pt-PT
Russian ru
Simplified Chinese zh-CHS
Spanish es
Swedish sv
Traditional Chinese zh-CHT
Turkish tr

Next steps

  • If you’re new to .NET Framework, see the overview for an introduction to key concepts and components.

  • For new features and improvements in .NET Framework 4.5 and all later versions, see What’s New.

  • For detailed information about deploying .NET Framework with your app, see Deployment Guide for Developers.

  • For changes that affect the deployment of .NET Framework with your app, see Reducing System Restarts During .NET Framework 4.5 Installations.

  • For information about migrating your app from .NET Framework 4 to .NET Framework 4.5 or later versions, see the migration guide.

  • See .NET Framework Reference Source to browse through .NET Framework source code online. The reference source is also available on GitHub. You can download the reference source for offline viewing and step through the sources (including patches and updates) during debugging. For more information, see the blog entry A new look for .NET Reference Source.

See also

  • Deployment Guide for Developers
  • Deployment Guide for Administrators
  • Install the .NET Framework 3.5 on Windows 11, Windows 10, Windows 8.1, and Windows 8
  • Troubleshoot Blocked .NET Framework Installations and Uninstallations
Источник

Win2008В данной статье опишем подробно установку Microsoft .NET Framework 3.5 в Windows Server 2008 R2, так как в этой ОС вы не сможете установить Microsoft .NET Framework 3.5 через обычный инсталлятор, как на любой другой несерверной ОС семейства Windows.

Заходим в «Диспетчер сервера» ( «Пуск»—«Администрирование»—«Диспетчер сервера») далее открываем вкладку «Роли» и жмем «Добавить роли»

Framework_2008_001

Появиться окно «Мастер добавления ролей» . Жмем «Далее». Появиться список выбора ролей. Выбираем «Сервер приложений» и жмем «Далее» .

Framework_2008_002

На предложение о добавлении новых компонент, жмем «Добавить необходимые компоненты» и «Далее».

Framework_2008_003

Затем, оставляем галочку на против «Платформа  NET Framework 3.5», жмем «Далее» и «Установить».

Framework_2008_004

В случае успешной установки у вас должно появиться вот такое окно об успешной установки ролей, служб ролей и компонент.

Framework_2008_005

На этом установка  Microsoft .NET Framework 3.5 закончена.

Запись опубликована в рубрике Windows Server 2008 R2 с метками Windows Server 2008. Добавьте в закладки постоянную ссылку.

Источник

.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 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 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.

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 the final version of .NET Framework, 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]

Overview[edit]

Overview of .NET Framework release history[4][5][6][7]

Version CLR Release
date 		Support
ended 		Visual Studio Included in Can be installed on Replaces
Windows Windows Server Windows Windows Server
1.0 1.0 2002-01-15[8][9] Visual Studio .NET (2002) — — NT 4.0 SP6a, 98, 98SE, Me, 2000, XP NT 4.0 SP6a, 2000, 2003 —
1.0 SP1 ↑ 2002-03-19[10] — — ↑ ↑ ↑
1.0 SP2 ↑ 2002-08-07[11] XP SP1[a] — ↑ ↑ ↑
1.0 SP3 ↑ 2004-08-30[12] 2009-07-14[13] — — ↑ ↑ ↑
1.1 1.1 2003-04-09[14] Visual Studio .NET 2003 — 2003 (x86) NT 4.0 SP6a, 98, 98SE, Me, 2000, XP, Vista NT 4.0 SP6a, 2000, 2003 (x64), 2008 1.0[15]
1.1 SP1 ↑ 2004-08-30[12] 2013-10-08[13] XP SP2, SP3[b] 2003 SP1, SP2 (x86) ↑ ↑ ↑
2.0 2.0 2005-10-27[16] Visual Studio 2005 — 2003 R2 98, 98SE, Me, 2000 SP3, XP SP2 2000 SP3, 2003 —
2.0 SP1 ↑ 2007-11-19[17] — 2008 2000 SP4, XP SP2 2000 SP4, 2003 SP1 ↑
2.0 SP2 ↑ 2008-08-11[18] 2011-07-12[13] — 2008 SP2, 2008 R2 ↑ ↑ ↑
3.0 2.0 2006-11-06[19] Visual Studio 2008 Vista — XP SP2 2003 SP1 2.0
3.0 SP1 ↑ 2007-11-19[17] Vista SP1 2008[c] ↑ ↑ ↑
3.0 SP2 ↑ 2008-08-11[18] 2011-07-12[13] Vista SP2 2008 SP2,[c] 2008 R2[c] ↑ ↑ ↑
3.5 2.0 2007-11-19[17] Visual Studio 2008 — — XP SP2, Vista 2003 SP1, 2008 2.0, 3.0
3.5 SP1 ↑ 2008-08-11[18] 2028-10-10[d][13] 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] ↑ ↑ ↑
4.0 4 2010-04-12[20] 2016-01-12[13] Visual Studio 2010 — — XP SP3, Vista SP1, 7 2003 SP2, 2008, 2008 R2 —
4.5 4 2012-08-15[21] 2016-01-12[13] Visual Studio 2012 8 2012 Vista SP2, 7 SP1 2008 SP2, 2008 R2 SP1 4.0
4.5.1 4 2013-10-17[22] 2016-01-12[13] 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 4 2014-05-05[23] 2022-04-26[13] Visual Studio 2015 — — Vista SP2, 7 SP1, 8, 8.1 2008 SP2, 2008 R2 SP1, 2012, 2012 R2 4.0-4.5.1
4.6 4 2015-07-20[24] 2022-04-26[13] Visual Studio 2015 10 v1507 — 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 4 2015-11-30[25] 2022-04-26[13] Visual Studio 2015 Update 1 10 v1511 — 7 SP1, 8, 8.1 Update, 10 v1507 2008 R2 SP1, 2012, 2012 R2 Update 4.0-4.6
4.6.2 4 2016-08-02[26] 2027-01-12[13] 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 4 2017-04-05[27] Same as
parent OS[13]		 Visual Studio 2017 15.1 10 v1703 — 7 SP1, 8.1 Update, 10 v1607 2008 R2 SP1, 2012, 2012 R2 Update, 2016 4.0-4.6.2
4.7.1 4 2017-10-17[28] 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 4 2018-04-30[29] 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 4 2019-04-18[30] Visual Studio 2019 16.3 10 v1903-v21H2, 11 v21H2 v1903-v20H2, 2022 7 SP1, 8.1 Update, 10 v1607-v1809 2008 R2 SP1, 2012, 2012 R2 Update, 2016, v1803-v1809, 2019 4.0-4.7.2
4.8.1 4 2022-08-09[31] Visual Studio 2022 17.3 10 v22H2, 11 v22H2 — 10 v20H2-v21H2, 11 v21H2 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.[6]
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.[6]
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.[32]
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.[13]
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.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.[13]

On 19 June 2001, the tenth anniversary of the release of Visual Basic, .NET Framework 1.0 Beta 2 was released.[33]

.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.[34]

Service Pack 1 [edit]

The .NET Framework 1.0 Service Pack 1 was released on 19 March 2002.[35]

Service Pack 2 [edit]

.NET Framework 1.0 Service Pack 2 was released on 7 August 2002.[36]

Service Pack 3 [edit]

.NET Framework 1.0 Service Pack 3 was released on 30 August 2004.[37]

.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.[38]

Changes in 1.1 include:[39]

  • 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.[34][40]

Service Pack 1 [edit]

The .NET Framework 1.1 Service Pack 1 was released on 30 August 2004.[41] 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.[42] 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.[43]

Not to be confused with .NET Standard 2.0, announced in August 14, 2017.[44]

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.[5] 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.[45] It requires Windows 2000 with SP4.

Service Pack 2 [edit]

The .NET Framework 2.0 Service Pack 2 was released on 11 August 2008.[46] 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.[47]

.NET Framework 3.0[edit]

Elements of the Microsoft .NET Framework version 3.0

.NET Framework 3.0, formerly called WinFX,[48] 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.[49] 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[50]
  • 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.[5] 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.[51]

Service Pack 2 [edit]

.NET Framework 3.0 Service Pack 2 was released on 11 August 2008.[52]

.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.[53]

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 Framework Class Library in this version has been partially released (for debugging reference only) under the Microsoft Reference Source License.[54]

.NET Framework 3.5 is supported on Windows XP (with Service Pack 2 or higher), Server 2003 (with Service Pack 1 or higher), Vista, Server 2008, 7, Server 2008 R2, 8, Server 2012, 8.1, Server 2012 R2, 10, and Server 2016.[5] Starting from Windows 8, .NET Framework 3.5 is an optional feature that can be turned on or off in control panel.

Although .NET Framework 3.5 is over 10 years old, it is also shipped as Windows Container image, allowing old applications that based on .NET Framework 2.0–3.5 to run in container environment.[55]

Service Pack 1 [edit]

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,[56] 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.Abstraction and System.Web.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 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[edit]

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 applications.[57] 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.[58]

.NET Framework 4.0[edit]

Key focuses for this release are:

  • Parallel Extensions to improve support for parallel computing, which target multi-core or distributed systems.[59] To this end, technologies like PLINQ (Parallel LINQ),[60] a parallel implementation of the LINQ engine, and Task Parallel Library, which exposes parallel constructs via method calls,[61] are included.
  • New Visual Basic .NET and C# language features, such as implicit line continuations, dynamic dispatch, named parameters, and optional parameters
  • Support for Code Contracts[62]
  • Inclusion of new types to work with arbitrary-precision arithmetic (System.Numerics.BigInteger)[63] and complex numbers (System.Numerics.Complex)[64]
  • 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), Vista (with Service Pack 1 or higher), Server 2008, 7 and Server 2008 R2.[5] 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[edit]

Microsoft announced the intention to ship .NET Framework 4 on 29 September 2008. The Public Beta was released on 20 May 2009.[65]

On 28 July 2009, a second release of the .NET Framework 4 beta was made available with experimental software transactional memory support.[66] 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.[67] At the same time, Microsoft announced the expected launch date for .NET Framework 4 as 22 March 2010.[67] This launch date was subsequently delayed to 12 April 2010.[68]

On 10 February 2010, a release candidate was published: Version:RC.[69]

On 12 April 2010, the final version of .NET Framework 4.0 was launched alongside the final release of Microsoft Visual Studio 2010.[70]

On 18 April 2011, version 4.0.1 was released supporting some customer-demanded fixes for Windows Workflow Foundation.[71][72] Its design-time component, which requires Visual Studio 2010 SP1, adds a workflow state machine designer.

On 27 October 2011, version 4.0.2 was released supporting some new features of Microsoft SQL Server.[73][74]

On 5 March 2012, version 4.0.3 was released.[75][76]

Windows Server AppFabric[edit]

After the release of the .NET Framework 4, Microsoft released a set of enhancements, named Windows Server AppFabric,[77] for application server capabilities in the form of AppFabric Hosting[78][79] and in-memory distributed caching support.

.NET Framework 4.5[edit]

.NET Framework 4.5 was released on 15 August 2012;[80] a set of new or improved features were added into this version.[81] NET Framework 4.5 is supported on Windows Vista or later.[82][83] The .NET Framework 4.5 uses Common Language Runtime 4.0, with some additional runtime features.[84]

.NET Framework 4.5 is supported on Windows Vista (with Service Pack 2), Server 2008 (with Service Pack 2), 7 (with Service Pack 1), Server 2008 R2 (with Service Pack 1), 8, Server 2012, 8.1 and Server 2012 R2.[5] 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[edit]

Metro-style apps 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# 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.[85]

Core features[edit]

  • 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.
  • Native support for Zip compression (previous versions supported the compression algorithm, but not the archive format).
  • Ability to customize a reflection context to override default reflection behavior through the CustomReflectionContext class.
  • New asynchronous features were added to the C# and Visual Basic languages. These features add a task-based model for performing asynchronous operations,[86][87] implementing futures and promises.

Managed Extensibility Framework (MEF)[edit]

The Managed Extensibility Framework or MEF is a library for creating lightweight, extensible applications. It allows application developers to discover and use extensions with no configuration required. It also lets extension developers easily encapsulate code and avoid fragile hard dependencies. MEF not only allows extensions to be reused within applications, but across applications as well.[88]

ASP.NET[edit]

  • 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 bundling and minification for improved page performance.
  • Integrated encoding routines from the Anti-XSS 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 asynchronously.
  • Support for asynchronous modules and handlers.
  • Support for content distribution network (CDN) fallback in the ScriptManager control.

Networking[edit]

  • Provides a new programming interface for HTTP applications: System.Net.Http namespace and System.Net.Http.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[edit]

The release of .NET Framework 4.5.1 was announced on 17 October 2013 along Visual Studio 2013.[89] This version requires Windows Vista SP2 and later[90] and is included with Windows 8.1 and Windows Server 2012 R2. New features of .NET Framework 4.5.1:[91]

  • Debugger support for X64 edit and continue (EnC)
  • Debugger support for seeing managed return values
  • Async-aware debugging in the Call Stack and Tasks windows
  • Debugger support for analyzing .NET memory dumps (in the Visual Studio Ultimate SKU)
  • Tools for .NET developers in the Performance and Diagnostics hub
  • Code Analysis UI improvements
  • ADO.NET idle connection resiliency

.NET Framework 4.5.2[edit]

The release of .NET Framework 4.5.2 was announced on 5 May 2014.[92] This version requires Windows Vista SP2 and later.[93] For Windows Forms applications, improvements were made for high 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.[92]

.NET Framework 4.6[edit]

.NET Framework 4.6 was announced on 12 November 2014.[94] It was released on 20 July 2015.[95] 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 TLS 1.1 and TLS 1.2 has been added to WCF.[95] This version requires Windows Vista SP2 or later.[96] 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 Windows CNG cryptography API. As a result, NSA Suite B Cryptography is available to .NET Framework. Suite B consists of AES, the SHA-2 family of hashing algorithms, elliptic curve Diffie–Hellman, and elliptic curve DSA.[95][97]

.NET Framework 4.6 is supported on Windows Vista (with Service Pack 2), Server 2008 (with Service Pack 2), 7 (with Service Pack 1), Server 2008 R2 (with Service Pack 1), 8, Server 2012, 8.1, Server 2012 R2, 10 and Server 2016.[5] Support for .NET Framework 4.6 ended on 26 April 2022.

.NET Framework 4.6.1[edit]

The release of .NET Framework 4.6.1 was announced on 30 November 2015.[98] This version requires Windows 7 SP1 or later.[96] New features and APIs include:

  • WPF improvements for spell check, support for per-user custom dictionaries and improved touch performance.
  • Enhanced support for Elliptic Curve Digital Signature Algorithm (ECDSA) X509 certificates.
  • Added support in SQL Connectivity for AlwaysOn, Always Encrypted and improved connection open resiliency when connecting to Azure SQL Database.
  • Azure SQL Database now supports distributed transactions using the updated System.Transactions APIs .
  • Many other performance, stability, and reliability related fixes in RyuJIT, GC, WPF and WCF.

.NET Framework 4.6.2[edit]

The preview of .NET Framework 4.6.2 was announced on 30 March 2016.[99] It was released on 2 August 2016.[100] This version requires Windows 7 SP1 or later.[96] It is the last version to support Windows 8 and Windows 10 (RTM-1511) although there have been some unofficial workarounds to use a subset of the functionality from Version 4.7 in Windows 8. New features include:

  • Support for paths longer than 260 characters
  • Support for FIPS 186-3 DSA in X.509 certificates
  • TLS 1.1/1.2 support for ClickOnce
  • Support for localization of data annotations in ASP.NET
  • Enabling .NET desktop apps with Project Centennial
  • Soft keyboard and per-monitor DPI support for WPF

.NET Framework 4.6.2 is also shipped as Windows container image.

.NET Framework 4.7[edit]

On 5 April 2017, Microsoft announced that .NET Framework 4.7 was integrated into Windows 10 Creators 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.[101] The promised standalone installer for Windows 7 and later was released on 2 May 2017,[102] but it had prerequisites not included with the package.[103] 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:[104]

  • Enhanced cryptography with elliptic curve cryptography
  • Improve TLS support, especially for version 1.2
  • High-DPI awareness support in Windows Forms
  • 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), Server 2008 R2 (with Service Pack 1), Server 2012, 8.1, Server 2012 R2, 10, Server 2016 and Server 2019.[5]

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

.NET Framework 4.7.1[edit]

.NET Framework 4.7.1 was released on 17 October 2017.[105] Amongst the fixes and new features, it corrects a d3dcompiler dependency issue.[106] It also adds compatibility with the .NET Standard 2.0 out of the box.[107]

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

.NET Framework 4.7.2[edit]

.NET Framework 4.7.2 was released on 30 April 2018.[108] Amongst the changes are improvements to ASP.NET, BCL, CLR, ClickOnce, Networking, SQL, WCF, Windows Forms, Workflow and WPF.[109] This version is included with Server 2019.[5]

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

.NET Framework 4.8[edit]

.NET Framework 4.8 was released on 18 April 2019.[110][111] It was the final version of .NET Framework, all future work going into the .NET Core platform that will eventually become .NET 5 and onwards.[2] This release included JIT enhancements ported from .NET Core 2.1, High DPI enhancements for WPF applications, accessibility improvements, performance updates, and security enhancements.[112] It supported Windows 7 (with Service Pack 1), Server 2008 R2 (with Service Pack 1), Server 2012, 8.1, Server 2012 R2, 10, Server 2016 and Server 2019[5] 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 (1607–2004), Windows Server 2016 and Windows Server 2019.

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[edit]

.NET Framework 4.8.1 was released on 9 August 2022.[113] 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+), Windows Server 2022 and Windows 11.

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Источник

О том, какая версия .NET Framework имеется в составе используемой операционной системы, очень часто возникает у новичков, которым, собственно, этот .NET Framework понадобился. .NET Framework — это компонент ОС, позволяющий запускать программы, написанные под .NET, на специальных языках программирования. Эта технология приобрела огромную популярность среди разработчиков, а программ, её использующих, с каждым днем становится всё больше и больше. Входя по умолчанию в состав современных систем как компонент ОС «из коробки», он и порождает вопросы о версии.

Итак, ситуация с компонентами .NET такая:

Windows XP (все редакции, кроме Media Center Edition)
Не содержат .NET Framework, но распространяется на установочном диске:

Windows XP Home и Professional SP1 — .NET Framework 1.0 + SP2 на установочном носителе.

Windows XP Home и Professional SP2 — .NET Framework 1.1 + SP1 на установочном носителе.

Windows XP Home и Professional SP3 — .NET Framework 1.1 + SP1 на установочном носителе.

Windows Server 2003 R2 — .NET Framework 2.0. Доступен в Установке и Удалении программ — Компоненты Windows в Панели управления как компонент ОС, однако, таковым не является, так как при выборе опции вызывается обычный MSI инсталлятор.

Windows XP Media Center Edition (редакция на основе Windows XP SP1)
Включает .NET Framework 1.0 + SP2 как компонент ОС.

Windows XP Media Center Edition (на основе Windows XP SP2 и выше)
Включает .NET Framework 1.0 + SP3 как компонент ОС.

Windows XP Tablet PC Edition (система Windows XP SP1)
Включает .NET Framework 1.0 + SP2 как компонент ОС.

Windows XP Tablet PC Edition (Windows XP SP2 и выше)
Включает .NET Framework 1.0 + SP3 как компонент ОС.

Windows Server 2003
Включает .NET Framework 1.1 как компонент ОС; 64-bit редакции Windows Server 2003 НЕ включают .NET Framework как компонент ОС.

Windows Vista (все редакции)
.NET Framework 2.0 включен как компонент системы, .NET Framework 3.0 также включен как компонент системы, однако, его можно деинсталлировать через Панель управления.

Windows Vista SP1 (все редакции)
.NET Framework 2.0 SP1 включен как компонент системы, .NET Framework 3.0 SP1 также включен как компонент системы, однако, его можно деинсталлировать через Панель управления.

Windows Server 2008 и Windows Server 2008 SP1 (все редакции)
Включают .NET Framework 2.0 SP1 и 3.0 SP1 как компонент ОС. .NET Framework 3.0 SP1 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Windows Server 2008 SP2 (все редакции)
Включают .NET Framework 2.0 SP2 и 3.0 SP2 как компонент ОС. .NET Framework 3.0 SP2 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Windows Server 2008 R2 (все редакции)
Включает the .NET Framework 3.5.1 как компонент ОС. Таким образом, на борту системы есть сразу .NET Framework 2.0 SP2, 3.0 SP2 and 3.5 SP1 + пост-3.5 SP1 обновления. Версии 3.0 SP2 and 3.5 SP1 могут быть удалены или добавлены через Панель управления.

Windows 7 (все редакции)
Включает the .NET Framework 3.5.1 как компонент ОС. Таким образом, на борту системы есть сразу .NET Framework 2.0 SP2, 3.0 SP2 and 3.5 SP1 + пост-3.5 SP1 обновления. Версии 3.0 SP2 and 3.5 SP1 могут быть удалены или добавлены через Панель управления.

Windows 8 (все редакции)
Включает .NET Framework 4.5 как компонент ОС (установлен по умолчанию). NET Framework 3.5 SP1 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Windows 8.1 (все редакции)
Включает .NET Framework 4.5.1 как компонент ОС (установлен по умолчанию). NET Framework 3.5 SP1 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Windows Server 2012 (все редакции)
Включает .NET Framework 4.5 как компонент ОС (установлен по умолчанию, кроме редакции Server Core). NET Framework 3.5 SP1 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Windows Server 2012 R2 (все редакции)
Включает .NET Framework 4.5.1 как компонент ОС (установлен по умолчанию, кроме редакции Server Core). NET Framework 3.5 SP1 НЕ установлен по умолчанию, можно доустановить через Панель управления.

Источник

Источник

Сводная таблица версий Microsoft .Net Framework, идущих в поставке операционных систем.

Установлено всегда — версии платформы, встроенные в операционную систему и доступные сразу после её установки. Стандартными средствами их удалить не удастся.

Опционально — версии платформы идущие в комплекте с операционной системой, которые можно устанавливать и удалять через Панель управления. Также указано, устанавливаются они по умолчанию при инсталляции системы, или нет.

Операционная система Установлено
всегда		 Опционально
устанавливается
по умолчанию		 не устанавливается
по умолчанию
Windows 8.1 4.5.1 3.5 SP1 (+ 2.0 SP2 и 3.0 SP2)
Windows 8 4.5 3.5 SP1 (+ 2.0 SP2 и 3.0 SP2)
Windows 7 2.0 SP2 3.5 SP1, 3.0 SP2
Windows Server 2008 R2 2.0 SP2 3.5 SP1, 3.0 SP1
Windows Server 2008
Windows Server 2008 SP1		 2.0 SP1 3.0 SP1
Windows Vista SP2 2.0 SP2 3.0 SP2
Windows Vista SP1 2.0 SP1 3.0 SP1
Windows Vista 2.0 3.0
Windows Server 2003 SP1
Windows Server 2003 SP2
Windows Server 2003 R2 SP1
Windows Server 2003 R2 SP2
(только 32-битная версия)		 1.1 SP1
Windows Server 2003
(только 32-битная версия)		 1.1
Windows XP Media Center Edition
Windows XP Tablet PC Edition
(на основе Windows XP SP2)		 1.0 SP3
Windows XP Media Center Edition
Windows XP Tablet PC Edition
(на основе Windows XP SP1)		 1.0 SP2
Источник

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