October Patch Tuesday is out for Windows 10 version 1903 and older, here’s what’s new

Microsoft today publishes new updates for Patch Tuesday for Windows 10 version 1903 and earlier.

Windows 10 1903

The latest version of Windows 10 is now getting build 18362.418 (KB4517389), which brings the following fixes:

  • Fixes a problem in security bulletin CVE-2019-1318 that can cause that client or server computers that do not support RFC 7627 from Extended Master Secret (EMS) have a higher connection and CPU latency. This problem occurs when you perform Transport Layer Security (TLS) handshakes from devices that do not support EMS, especially on servers. EMS support has been available for all supported versions of Windows since the 2015 calendar year and is being applied incrementally by installing monthly updates from October 8, 2019 and later.
  • Fixed an issue with applications and printer drivers that use Windows Engine JavaScript ( jscript.dll ) to process print jobs.
  • Security updates for Windows Shell, Internet Explorer, Microsoft Edge, Windows Platform and Application Frames, Windows Cryptography, Windows Authentication, Windows Storage and File Systems, Windows Kernel, Script Engine Microsoft and Windows Server.

Microsoft is currently unaware of any known issues with this update, but that does not mean that this update is completely safe to install. Recent Windows updates had several impacts on CPU usage, Windows Search or the Start Menu, and we hope that Microsoft has improved its quality standards for this latest version.

Windows 10 1809

If you are still running Windows 10 version 1809, build 17763.806 (KB4519338) is now available with the following fixes:

  • Fixes a problem in the Keyboard Lock Subsystem that may not filter the key entry correctly.
  • Fixes a problem in security bulletin CVE-2019-1318 that may cause client or server computers that do not support RFC 7627 from Master Master Secret (EMS) to increase connection latency and CPU utilization. This problem occurs when you perform Transport Layer Security (TLS) handshakes from devices that do not support EMS, especially on servers. EMS support has been available for all supported versions of Windows since the 2015 calendar year and is being applied incrementally by installing monthly updates from October 8, 2019 and later.
  • A problem with applications and printer drivers that use Windows JavaScript Engine ( jscript.dll ) to process print jobs is fixed.
  • Security updates for Windows Shell, Internet Explorer, Microsoft Scripting Engine, Microsoft Edge, Windows App Platform and Frameworks, Windows Cryptography, Windows Authentication, Windows Kernel and Windows Server.

Please note that this new compilation still has some known issues related to the Windows Mixed Reality Portal and Asian language packs, but nothing new compared to the previous patch for Windows 10 version 1809.

Windows 10 1803

In case you are still running version 1803 of the operating system (which will no longer be compatible with home and professional users next month), build 17134.1069 (KB452000 8) is now available to you with the following solutions :

  • Fixes a problem in the Keyboard Lock Subsystem that may not filter the key input correctly.
  • Fixes a problem with Bluetooth hardening updates, released on August 13, 2019, which may cause a "0x133 DPC_WATCHDOG_VIOLATION" error.
  • Fixed an issue in security bulletin CVE-2019-1318 that could cause client or server computers that do not support Extended Master Master Secret (EMS) RFC 7627 to have higher connection latency and CPU utilization. This problem occurs when you perform Transport Layer Security (TLS) handshakes from devices that do not support EMS, especially on servers. EMS support has been available for all supported versions of Windows since the 2015 calendar year and is being applied incrementally by installing monthly updates from October 8, 2019 and later.
  • A problem with applications and printer drivers that use Windows JavaScript Engine ( jscript.dll ) to process print jobs is fixed.
  • Security updates for Windows Shell, Internet Explorer, Microsoft Edge, Windows platform and application frameworks, Windows cryptography, Windows authentication, Windows data center networks, Windows Storage and Filesystems, Windows Kernel, Microsoft Scripting Engine and Windows Server.

Microsoft also released Patch Tuesday updates for Windows 10 versions 1709, 1703, 1607 and 1507 today, but these are only available to users running Enterprise and Education versions of Windows 10. We invite you to check the dedicated pages on the site Microsoft Support to see what's new in this update.

expects Microsoft to start implementing Windows 10 version 1909 soon, but apparently the company has not finished testing this update with Insiders in the Slow and Release Preview ring. We will inform you as soon as we get more information about this minor update.

More information: patch Tuesday, Windows 10, Windows 10, April 2018 update, Windows 10, May 2019 update, Windows 10, October 2018 update

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