Microsoft Cumulative Update for Windows 10 Versions 1909 and 1903

Microsoft released cumulative update KB 4541335 with non-security improvements and fixes for Windows 10 Versions 1909 and 1903 today.  From the KB Article:

 "Windows 10, versions 1903 and 1909 share a common core operating system and an identical set of system files. As a result, the new features in Windows 10, version 1909 were included in the recent monthly quality update for Windows 10, version 1903 (released October 8, 2019), but are currently in a dormant state. These new features will remain dormant until they are turned on using an enablement package, which is a small, quick-to-install “master switch” that simply activates the Windows 10, version 1909 features.

To reflect this change, the release notes for Windows 10, version 1903 and Windows 10, version 1909 will share an update history page. Each release page will contain a list of addressed issues for both 1903 and 1909 versions. Note that the 1909 version will always contain the fixes for 1903; however, 1903 will not contain the fixes for 1909. This page will provide you with the build numbers for both 1909 and 1903 versions so that it will be easier for support to assist you if you encounter issues.

For more details about the enablement package and how to get the feature update, see the Windows 10, version 1909 delivery options blog."

In addition, Microsoft made the change below and documented in the Windows message center:

"Timing for upcoming Windows optional C and D releases

We have been evaluating the public health situation, and we understand this is impacting our customers. In response to these challenges we are prioritizing our focus on security updates. Starting in May 2020, we are pausing all optional non-security releases (C and D updates) for all supported versions of Windows client and server products (Windows 10, version 1909 down through Windows Server 2008 SP2).

There is no change to the monthly security updates (B release – Update Tuesday); these will continue as planned to ensure business continuity and to keep our customers protected and productive."

 The update includes non-security quality improvements and there are currently no known issues with the update. The highlights listed are as follows:

• Updates an issue that causes an error when printing to a document share. 
• Updates a performance issue in applications that occurs when content that is protected by digital rights management (DRM) plays or is paused in the background. 
• Updates an issue that prevents the mute button from working on certain devices with the Microsoft Your Phone app. 
• Updates an issue that prevents applications from closing. 
• Updates an issue that causes calendar dates to appear on the wrong day of the week in the clock and date region of the notification area when you select the Samoa time zone. 
• Updates an issue that causes applications to close unexpectedly when a user enters East Asian characters after changing the keyboard layout. 

To download and install the update, go to Settings -> Update and Security ->  Windows Update and select Check for updates.  The standalone package for this update is available in the Microsoft Update Catalog.  In addition, with Windows Update, the latest SSU (KB4541338) will be offered to you automatically. To get the standalone package for the latest SSU, search for it in the Microsoft Update Catalog.

Windows 10 update history

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