Versions of .NET

.NET/.NET Framework/

Release 4.5

Released on 2012-10-09
CLR Version 4
Included in Windows ️ 8
Installable on Windows 7, Vista
Included in Windows Server ️ 2012
Installable on Windows Server 2008 R2 SP1, 2008 SP2
New features

Release notes

.NET Framework 4.5 Release Notes

You can learn about the changes made in the .NET Framework 4.5.

The .NET Framework 4.5 is no longer supported by Microsoft.