Microsoft .NET Framework versions

Framework for creating and running Windows-based applications
4.8
Apr 13, 2023
Review
4.7
May 15, 2017
Review
4.6
Jul 21, 2015
Review
4.5
Feb 29, 2012
Review
4.0
Aug 12, 2010
Review
2.0
Mar 3, 2008
Editorial review
rating
1.1
Mar 1, 2008
Nov 22, 2009

What's new

v4.8 [Apr 30, 2019]
ASP.NET:
- Fixed System.Web.Caching initialization bug when using ASP.NET cache on machines without IIS.
Windows Forms:
- Fixed the ability to select ComboBox edit field text using mouse down move.
- Fixed the issue with interaction between WPF user control and hosting WinForms app when processing keyboard input.
- Fixed the issue with Narrator/NVDA announcing of PropertyGrid's ComboBox expanding and collapsing action.
- Fixed the issue with rendering "..." button of PropertyGrid control in HC mode to draw button background and dots contrasted.
WPF:
- Fixed a handle leak during creation of a Window in WPF applications that are manifested for Per Monitor DPI V2 Awareness. This leak may lead to extraneous GC.Collect calls that can impact performance in Window creation scenarios.
- Fixed a regression caused by the bug fix involving bindings with DataContext explicitly on the binding path.

v4.6 [Jul 21, 2015]
This version of the .NET Framework runs side-by-side with the .NET Framework 3.5 SP1 and earlier versions, but performs an in-place update for the .NET Framework 4, .NET Framework 4.5, .NET Framework 4.5.1 and .NET Framework 4.5.2.

v4.0 [Aug 12, 2010]
- Application Compatibility and Deployment
- Core New Features and Improvements
- Managed Extensibility Framework
- Parallel Computing
- Networking
- Web
- Client
- Data
- Windows Communication Foundation
- Windows Workflow Foundation

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