Microsoft has pushed new security patches for Windows 10 Version 1809, 1803 and 1709 today. Windows 10 Build 17763.593 (KB4509479), Build 17134.860 (KB4509478) & Build 16299.1239 (KB4509477) are available for these Windows 10 versions now.

The patches bring improvements and fixes for the Windows 10 users. You can check the changelog for each build below.

Windows 10 Build 17763.593 Improvement & Fixes:

This update includes quality improvements. Key changes include:

Addresses an issue that may prevent devices from connecting to some Storage Area Network (SAN) devices using Internet Small Computer System Interface (iSCSI) after installing KB4497934. You may also receive an error in the System log section of Event Viewer with Event ID 43 from iScsiPrt and a description of “Target failed to respond in time for a login request.”
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Windows Update Improvements

Microsoft has released an update directly to the Windows Update client to improve reliability. Any device running Windows 10 configured to receive updates automatically from Windows Update, including Enterprise and Pro editions, will be offered the latest Windows 10 feature update based on device compatibility and Windows Update for Business deferral policy. This doesn’t apply to long-term servicing editions.

Windows 10 Build 17134.860 Improvement & Fixes:

This update includes quality improvements. Key changes include:

Addresses an issue that may prevent devices from connecting to some Storage Area Network (SAN) devices using Internet Small Computer System Interface (iSCSI) after installing KB4499183. You may also receive an error in the System log section of Event Viewer with Event ID 43 from iScsiPrt and a description of “Target failed to respond in time for a login request.”
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.

Windows 10 Build 16299.1239 Improvement & Fixes:

This update includes quality improvements. Key changes include:

Addresses an issue that may prevent devices from connecting to some Storage Area Network (SAN) devices using Internet Small Computer System Interface (iSCSI) after installing KB4499147. You may also receive an error in the System log section of Event Viewer with Event ID 43 from iScsiPrt and a description of “Target failed to respond in time for a login request.”
If you installed earlier updates, only the new fixes contained in this package will be downloaded and installed on your device.