.NET Framework Versions
.NET Framework 1.0
Version 1.0The foundation of Microsoft .NET Framework
Released: February 13, 2002
Pre-installed in: Windows XP (Media Center Edition)
Common Language Runtime (CLR)
Base Class Library
ASP.NET Web Forms
20.4 MB
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.NET Framework 1.1
Version 1.1Enhanced version with improved performance
Released: April 24, 2003
Pre-installed in: Windows Server 2003
IPv6 support
Mobile ASP.NET controls
Improved performance and security
23.7 MB
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.NET Framework 2.0
Version 2.0Major release with generics and new features
Released: November 7, 2005
Pre-installed in: Windows Server 2003 R2, Windows Server 2008 SP2
Generics for type-safe collections
Partial classes
Nullable types
22.4 MB
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.NET Framework 3.0
Version 3.0Foundation technologies for Windows Vista
Released: November 6, 2006
Pre-installed in: Windows Vista, Windows Server 2008
Windows Presentation Foundation (WPF)
Windows Communication Foundation (WCF)
Windows Workflow Foundation (WF)
50.3 MB
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.NET Framework 3.5
Version 3.5LINQ and enhanced web development
Released: November 19, 2007
Pre-installed in: Windows 7, Windows 8/8.1
Language Integrated Query (LINQ)
ASP.NET AJAX
Entity Framework
231 MB
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.NET Framework 4.0
Version 4.0Parallel computing and dynamic language support
Released: April 12, 2010
Task Parallel Library (TPL)
Parallel LINQ (PLINQ)
Dynamic Language Runtime (DLR)
48.1 MB
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.NET Framework 4.5
Version 4.5Async programming and improved performance
Released: August 15, 2012
Pre-installed in: Windows 8, Windows Server 2012
Async and await keywords
Improved performance and scalability
Enhanced ASP.NET with Web API
54.3 MB
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.NET Framework 4.5.1
Version 4.5.1Performance improvements and new features
Released: October 17, 2013
Pre-installed in: Windows 8.1, Windows Server 2012 R2
Performance improvements
Enhanced async debugging
ADO.NET connection resiliency
66.8 MB
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.NET Framework 4.5.2
Version 4.5.2Enhanced reliability and performance
Released: May 5, 2014
EventSource class enhancements
New APIs for system administrators
ASP.NET enhancements
66.2 MB
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.NET Framework 4.6
Version 4.6Improved security and performance
Released: July 20, 2015
Pre-installed in: Windows 10 (initial release)
RyuJIT compiler improvements
Cryptography enhancements
WPF transparency and touch improvements
65.9 MB
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.NET Framework 4.6.1
Version 4.6.1Cryptography and WPF enhancements
Released: November 30, 2015
Pre-installed in: Windows 10 version 1511 (November Update)
X509 certificate enhancements
Elliptic Curve Cryptography support
WPF spell checking improvements
66.2 MB
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.NET Framework 4.6.2
Version 4.6.2Security and accessibility improvements
Released: August 2, 2016
Pre-installed in: Windows 10 version 1607 (Anniversary Update), Windows Server 2016
Long path support
DataGridView improvements
WPF accessibility enhancements
67.9 MB
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.NET Framework 4.7
Version 4.7Enhanced security and performance
Released: April 5, 2017
Pre-installed in: Windows 10 version 1703 (Creators Update)
TLS 1.1 and 1.2 support improvements
High-DPI support enhancements
WPF touch/stylus stack improvements
68.4 MB
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.NET Framework 4.7.1
Version 4.7.1Accessibility and performance improvements
Released: October 17, 2017
Pre-installed in: Windows 10 version 1709 (Fall Creators Update)
Configuration builders for ASP.NET
Runtime feature detection
WPF accessibility improvements
69.3 MB
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.NET Framework 4.7.2
Version 4.7.2Security and reliability enhancements
Released: April 30, 2018
Pre-installed in: Windows 10 version 1803 (April 2018 Update)
Enhanced cryptography improvements
SQL connectivity enhancements
ASP.NET dependency injection improvements
69.7 MB
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.NET Framework 4.8
Version 4.8The final version of .NET Framework
Released: April 18, 2019
Pre-installed in: Windows 10 version 1903 (May 2019 Update), Windows Server 2019
Accessibility improvements
Runtime improvements
ClickOnce improvements
118 MB
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.NET Framework 4.8.1
Version 4.8.1Final update with ARM64 support
Released: August 9, 2022
Pre-installed in: Windows 11, Windows Server 2022
ARM64 support
Accessibility improvements
High-DPI improvements
120 MB
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