“Version 1803” is supposed to be released today but apparently Microsoft announced that it will delay the release. The roll out was halted because Microsoft found a blocking bug which is rather rare and significant. Thanks to the insiders’ feedback during the testing period in finding the bug before rolling out the final release.
UPDATE (April 18, 2018):
Microsoft released a new Redstone 4 test build, No. 17134, to Insider testers in the Fast Ring. As the company’s short blog post stated, this build has no new features, but does include the fixes from last week’s Cumulative Update (KB4100375), plus some unspecified “fixes for general reliability of the OS.”
From today’s post:
“As Build 17133 progressed through the rings, we discovered some reliability issues we wanted to fix. In certain cases, these reliability issues could have led to a higher percentage of (BSOD) on PCs for example. Instead of creating a Cumulative Update package to service these issues, we decided to create a new build with the fixes included.”
Will Build 17134 end up becoming RTM and start rolling out to the mainstream soon? One can only guess/hope.