Windows 10 Version 1803 (April 2018 update) will reach it's the end of servicing today November 12, 2019 for the Home, Pro, Pro for Workstations, and Iot Core editions
Windows 10, version 1803 will reach the end of servicing on November 12, 2019. This applies to the following editions* of Windows 10 released in April of 2018:
Windows 10, version 1803, Home
Windows 10, version 1803, Pro
Windows 10, version 1803, Pro for Workstations
Windows 10, version 1803, IoT Core
These editions will no longer receive security updates after November 12, 2019. Customers who contact Microsoft Support after this date will be directed to update their device to the latest version of Windows 10 to remain supported.
As noted in the April 4 blog titled “Improving the Windows 10 update experience with control, quality and transparency”, when a Windows 10 device is at or near the end of service, Windows Update will automatically initiate a feature update to ensure device security and ecosystem health.
For more information, see the Windows lifecycle fact sheet or our Windows 10 Servicing Frequently Asked Questions.
*Windows 10, version 1803, Enterprise, Education and IoT Enterprise editions reach end of support in November of 2020.