Windows 10, version 1803

Windows 10 April 2018 Update (also known as version 1803 and codenamed "Redstone 4") is the fifth major update to Windows 10 and the fourth in a series of updates under the Redstone codenames. It carries the build number 10.0.17134.

Version history
The first preview was released to Insiders on August 31, 2017. The final release was made available to Windows Insiders on April 16, 2018, followed by a public release on April 30, and began to roll out on May 8.

The update has reached end of service on November 12, 2019 for Home, Pro, Pro for Workstations and IoT Core editions. The Enterprise, IoT Enterprise and Education editions would have originally reached end of service on November 10, 2020, but this was postponed to May 11, 2021 due to the "global health crisis", in reference to the COVID-19 pandemic.