.NET Framework November 2018 Preview of Quality Rollup

Tara Overfield


Today, we are releasing the November 2018 Preview of Quality Rollup.

Quality and Reliability

This release contains the following quality and reliability improvements.


  • Addressed an issue with KB4096417 where we switched to CLR-implemented write-watch for pages. The GC will no longer call VirtualAlloc when running under workstation GC mode. [685611]


  • Provides an AppContext flag for making the default value of TransparentNetworkIPResolution false in SqlClient connection strings. [690465]


  • Addressed a System.AccessViolationException due to accessing disposed X509Certificate2 instance in a rare race condition to defer the service certificate cleanup to GC. The impacted scenario is WCF NetTcp bindings using reliable sessions with certificate authentication. [657003]

Note: Additional information on these improvements is not available. The VSTS bug number provided with each improvement is a unique ID that you can give Microsoft Customer Support, include in StackOverflow comments or use in web searches.

Getting the Update

The Preview of Quality Rollup is available via Windows Update, Windows Server Update Services, and Microsoft Update Catalog.

Microsoft Update Catalog

You can get the update via the Microsoft Update Catalog. For Windows 10, .NET Framework updates are part of the Windows 10 Monthly Rollup. The following table is for Windows 10 and Windows Server 2016+ versions.

Product VersionPreview Quality Rollup KB
Windows 10 1803 (April 2018 Update)Catalog 4467682
.NET Framework 3.5, 4.7.24467682
Windows 10 1709 (Fall Creators Update)Catalog 4467681
.NET Framework 3.5, 4.7.1, 4.7.24467681
Windows 10 1703 (Creators Update)Catalog 4467699
.NET Framework 3.5, 4.7, 4.7.1, 4.7.24467699
Windows 10 1607 (Anniversary Update)Catalog 4467684
.NET Framework 3.5, 4.6.2, 4.7, 4.7.1, 4.7.24467684

The following table is for earlier Windows and Windows Server versions.


Product VersionPreview of Quality Rollup KB
Windows 8.1 Windows RT 8.1 Windows Server 2012 R2Catalog 4467226
.NET Framework 3.5Catalog 4459935
.NET Framework 4.5.2Catalog 4459943
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.1, 4.7.2Catalog 4467087
Windows Server 2012Catalog 4467225
.NET Framework 3.5Catalog 4459932
.NET Framework 4.5.2Catalog 4459944
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.1, 4.7.2Catalog 4467086
Windows 7 Windows Server 2008 R2Catalog 4467224
.NET Framework 3.5.1Catalog 4459934
.NET Framework 4.5.2Catalog 4459945
.NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.1, 4.7.2Catalog 4467088
Windows Server 2008Catalog 4467227
.NET Framework 2.0, 3.0Catalog 4459933
.NET Framework 4.5.2Catalog 4459945
.NET Framework 4.6Catalog 4467088

Previous Monthly Rollups

The last few .NET Framework Monthly updates are listed below for your convenience:


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