As is generally the case with cumulative updates, there are no new features here. But there are a few security fixes and overall system improvements. In fact, this round of updates is relatively small.
KB4530684 for Windows 10 1903 and 1909
Today’s update will bump your Windows 10 1903 build to 18362.535and version 1909 to 18363.535 and it includes the following fixes and improvements:
Updates to improve security when Windows performs basic operations.Addresses an issue that might cause error 0x3B in cldflt.sys on some devices.Addresses an issue that might prevent you from creating a local user account using the Input Method Editor (IME) for Chinese, Japanese, or Korean languages. This issue occurs when setting up a new Windows device during the Out of Box Experience (OOBE).Security updates to Windows Virtualization, Windows Kernel, the Microsoft Scripting Engine, and Windows Server.
If you have automatic updates enabled, you should see the updates in the next couple of days. Or, if you can stay on top of things by heading to Settings > Update & Security > Microsoft Update to check. Then, manually install the update by downloading it from Microsoft Update Catalog. Older supported versions of Windows 10 are receiving patches today, too. There are also a few known issues with these updates, which vary depending on the version of Windows 10 you’re running. Make sure to read the Windows 10 Update History page for your version’s release notes. If you have any issues with your system after the update that isn’t resolved by Microsoft’s documented workarounds, you can roll them back. For more on how to do that, check out: How to Uninstall a Windows 10 Cumulative Update.
