What’s New in Windows 10 Cumulative Update KB4515384 for Version 1903
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The September 2019 Patch Tuesday rollout also includes a cumulative update for Windows 10 May 2019 Update, or version 1903 as Microsoft calls it.
The cumulative update in question is KB4515384, and the first change that it produces on a device where it’s installed is an increase of the OS build number to 18362.356,
You can determine the OS build by clicking the Start menu and typing winver.
Like the other cumulative updates published on Patch Tuesday, KB4515384 comes with both security and non-security improvements, and one of the most notable concerns protections against the speculative execution side-channel vulnerabilities known as Microarchitectural Data Sampling and affecting 32-bit versions of Windows.
Moreover, this update fixes the high CPU usage bug in Cortana, while also sporting refinements for Edge, Internet Explorer, the Microsoft Scripting Engine, Windows Authentication, and other Windows components.
"No known issues"
Microsoft says the same cumulative update also includes improvements for verifying usernames and passwords, but also for storing and managing files.
There are no known issues in this cumulative update, and this is definitely a good thing given the problems that so many users encountered in the past after Patch Tuesday rollouts.
You can check out the full changelog in the box after the jump.
Windows 10 version 1903 is the most recent stable version of the operating system, with another feature update prepared for the fall of this year. Specifics on when this version is projected to begin rolling out to users are still not available.
On the other hand, version 1903 is still in the process of being pushed to devices in stages, as Microsoft embraced a more cautious update for this release. The update, however, can be downloaded by anyone from Windows Update using a manual check for updates on a Windows 10 device.
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