Windows RS 4 might be the April update
 

Qualcomm powered machine gets it too

Last week Microsoft launched the 1803 update that indicated that this might be the Redstone 4 spring update.

Last Fall, we had a 1709 aka Fall update launched in the ninth month of 2017, but obviously Redstone 4 was delayed from planned launch date in March all the way to last days of April.

Things are looking good as Version 1803 with OS build 17134.1 now promises that this is a release preview and April Update. The latest 17134.1 build includes a fix from KB4100375 as well as some general stability improvements.

This fix is addressing:

A PDF security issue in Microsoft Edge.
An issue that, in some instances, prevents Internet Explorer from identifying custom controls.
Security updates to Internet Explorer, Microsoft Edge, Microsoft scripting engine, Windows kernel, Microsoft graphics component, Windows Server, Windows cryptography, and Windows datacenter networking.

https://fudzilla.com/news/46131-wind...e-april-update