March 2017 Preview of the Quality Rollup for the .NET Framework 3.5.1, 4.5.2 and 4.6 on Windows 7 and Windows Server 2008 R2 SP1 (KB 3216523): March 21, 2017

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Introduction

The March 2017 Preview of the Monthly Quality Rollup for Windows 7 Service Pack 1 and Windows Server 2008 R2 Service Pack 1 includes cumulative reliability improvements in the .NET Framework 3.5.1, 4.5.2, 4.6, and 4.6.1. We recommend that you apply this rollup as part of your regular maintenance routines. Before you install this update, see the "Known issues" section.

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Known issues

There is a known issue in this update. For more information, see KB 3214106.

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Quality and reliability improvements

The following articles contain additional information about the individual quality and reliability improvements as they relate to each .NET Framework product version:

3217125 March 2017 Preview of the Quality Rollup for the .NET Framework 3.5.1 on Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB 3217125): March 21, 2017
3216970 March 2017 Preview of the Quality Rollup for the .NET Framework 4.5.2 on Windows Vista SP2, Windows Server 2008 SP2, Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB 3216970): March 21, 2017
3216973 March 2017 Preview of the Quality Rollup for the .NET Framework 4.6 on Windows Vista SP2, Windows Server 2008 SP2, and 4.6 and 4.6.1 on Windows 7 SP1 and Windows Server 2008 R2 SP1 (KB 3216973): March 21, 2017

Note These updates also contain cumulative updates that were included previously starting from October 11, 2016.

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