Microsoft releases Windows 10 builds 19042.985, 18363.1556 - here's what's new

Yet another month has passed, and Microsoft is once again releasing its set of Patch Tuesday updates for all supported versions of Windows, including a multitude of Windows 10 versions. For regular users with Windows 10 Home or Pro, only versions 20H2, 2004, and 1909 are getting updates today, and even then, support for version 1909 ends today, so this is the last update you'll get unless you have an Enterprise or Education SKU.

For Windows 10 version 2004 and 20H2, the cumulative update is the same, and it's labeled KB5003173, which you can download manually here. This will bring the build number up to 19041.985 and 19042.985, depending on which version you have, and it includes these highlights:

• Updates to improve security when Windows performs basic operations.
• Updates to improve Windows OLE (compound documents) security.
• Updates security for Bluetooth drivers.

The full list of fixes is below:

• This update makes quality improvements to the servicing stack, which is the component that installs Windows updates. Servicing stack updates (SSU) ensure that you have a robust and reliable servicing stack so that your devices can receive and install Microsoft updates.
• Security updates to Windows App Platform and Frameworks, the Windows Kernel, Windows Media, the Microsoft Scripting Engine, and the Windows Silicon Platform.

If you're still using Windows 10 version 1909, this is the last update you'll get if you have Windows 10 Home or Pro, and you may want to consider upgrading to a newer version to stay secure going forward. The update is KB5003169 and it brings the build number up to 18363.1556. You can download it manually here, and the highlights of the update are:

• Updates to improve security when Windows performs basic operations.
• Updates an issue that might cause scroll bar controls to appear blank on the screen and not function.
• Updates to improve Windows OLE (compound documents) security.
• Updates security for Bluetooth drivers.

And here are the additional fixes and improvements included:

• Addresses an issue that might cause scroll bar controls to appear blank on the screen and not function. This issue affects 32-bit applications running on 64-bit Windows 10 (WOW64) that create scroll bars using a superclass of the USER32.DLL SCROLLBAR window class. This issue also affects HScrollBar and VScrollBar controls and classes derived from System.Windows.Forms.ScrollBar. A memory usage increase of up to 4 GB might occur in 64-bit applications when you create a scroll bar control.
• Security updates Windows App Platform and Frameworks, the Windows Kernel, the Microsoft Scripting Engine, and the Windows Silicon Platform.

Finally, there are a bunch of updates for versions of Windows 10 that are only supported in specific SKUs or servicing channels. Here's a quick rundown of everything else being released today:

For Windows 10 versions 1803 and 1809, these are also the final updates for Enterprise and Education SKUs. Version 1809, however, will live on in the Long-Term Servicing Channel alongside the other two LTSB releases.

As usual, these updates are mandatory and they'll be installed automatically sooner or later. You can download them manually using the links above to avoid surprises.