November 8, 2016 A detection change was made to account for the .NET Framework 4.6.1 hotfix rollup for customers who were not being correctly offered this reliability rollup for the .NET Framework 4.6.1.
This article describes the reliability rollup 3186208 for the Microsoft .NET Framework on Windows 8.1 and Windows Server 2012 R2. This update includes cumulative improvements in reliability in the .NET Framework 4.6, 4.6.1, and 4.5.2.
Specifically, this update contains a cumulative account of all limited distribution release (LDR) updates that have been shipped to date. No new features are introduced in this update. This update provides important reliability improvements in the following .NET Framework components, among others:
Common Language Runtime
Windows Presentation Foundation
Windows Communication Foundation
See the prerequisites for applying this update.
This reliability rollup includes the following updates.
How to obtain this update
This update is available from Windows Update, as an Optional update.
To obtain the stand-alone package for this update, go to the Microsoft Update Catalog website.
To apply this update, you must have the .NET Framework 4.5.2, 4.6, or 4.6.1 installed, as appropriate.
Command-line switches for this update
For information about the various command-line switches that are supported by this update, visit Command-Line Options on MSDN site.
You have to restart the computer after you apply this update if any affected files are being used. We recommend that you close all .NET Framework-based applications before you apply this update.
Update removal information
To remove this update, use the Add or Remove Programs item or the Programs and Features item in Control Panel.