The discovery of build 17134 of Windows 10 last week came as both a surprise and a disappointment, with those looking forward to the next big feature update realizing that this nearly certainly meant a delay.
Nevertheless, Windows 10 build 17134 is the new RTM build for the spring feature update.
"In certain cases, these reliability issues could have led to a higher percentage of BSOD [Blue Screen of Death] on PCs, for example".
Microsoft has now pushed out a new build for Windows 10 RS4 which includes fixes from KB4100375 as well as some fixes for general reliability of the OS. Rather than releasing a cumulative update to fix the bug, Microsoft took a rather unusual approach by issuing a new build rather than the typical path of patching the issue through Windows Update.More news: Best of WWE Raw as the Superstar Shake-up kicks off
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According to Windows 10 sleuth WalkingCat, Microsoft appears to have renamed the Spring Creators Update -formerly known as Redstone 4- to the "Windows 10 April 2018 Update", a naming scheme that makes more sense. At this point in time, we don't have any idea why the blue screen of death bug was occurring with this new build of Windows 10, but it's good that Microsoft is taking quick action to address the issue.
So it would seem that the delay on the Windows 10 spring feature update, or version 1803, is more than just a week. However, a blocking bug was discovered that delayed the release to the public nearly at the last minute. These issues could have potentially led to more BSODs on PCs. And will need to test a cumulative update with it, too.
While I don't have access to all the facts, I think that Microsoft did the right decision in postponing the release of the next Windows 10 feature update.
Past releases have shown that even smaller Windows updates result in an increased number of bugs and issues that Windows users experience after installation.