Microsoft has pushed new security patches for Windows 10 Version 1809 and 1803 today. Windows 10 Build 17763.737 (KB4512578), Build 17134.1006 (KB4516058) are available for these Windows 10 versions now.

The patches bring many improvements and fixes for the Windows 10 users. Highlights of the fixes are updates to improve security when using Internet Explorer, Microsoft Edge, and input devices such as a mouse, keyboard, or stylus and updates for verifying user names and passwords.

You can check the changelog for each build below.

Windows 10 Build 17763.737 Improvement & Fixes:

This security update includes quality improvements. Key changes include:

  • Provides protections against a new subclass of speculative execution side-channel vulnerabilities, known as Microarchitectural Data Sampling, for 32-Bit (x86) versions of Windows (CVE-2019-11091, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130). Use the registry settings as described in the Windows Client and Windows Server articles. (These registry settings are enabled by default for Windows Client OS editions and Windows Server OS editions.)
  • Security updates to Microsoft Edge, Internet Explorer, Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Input and Composition, Windows Fundamentals, Windows Authentication, Windows Cryptography, the Microsoft JET Database Engine, Windows Kernel, Windows Virtualization, and Windows Server.
    If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Windows 10 Build 17134.1006 Improvement & Fixes:

This security update includes quality improvements. Key changes include:

  • Provides protections against a new subclass of speculative execution side-channel vulnerabilities, known as Microarchitectural Data Sampling, for 32-Bit (x86) versions of Windows (CVE-2019-11091, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130). Use the registry settings as described in the Windows Client and Windows Server articles. (These registry settings are enabled by default for Windows Client OS editions and Windows Server OS editions.)

  • Security updates to Internet Explorer, Microsoft Scripting Engine, Windows App Platform and Frameworks, Windows Input and Composition, Windows Media, Windows Fundamentals, Windows Authentication, Windows Cryptography, Windows Datacenter Networking, Windows Storage and Filesystems, the Microsoft JET Database Engine, Windows Kernel, Windows Virtualization, Windows Server, and Microsoft Edge.