Microsoft planned to launch its next big Windows 10 update, code-named Redstone 4, last week. The software giant had targeted April 10 as an internal target to launch the update, but a last-minute "blocking error" delayed the release. In an unusual change, Microsoft has now issued a new version instead of fixing the error with a cumulative update through Windows Update.
"In certain cases, these reliability problems could have caused a higher percentage of (BSOD) in computers, for example," says Dona Sakar of Microsoft. "Instead of creating a cumulative update package to address these problems, we decided to create a new compilation with the included fixes." Microsoft has not revealed the exact reason for the blocking error, or why it was discovered at the last moment.  The new compilation is available for Windows Insiders in Fast Ring, and will be available for Slow Ring and Release Preview shortly. Sources familiar with Microsoft's plans say The Verge that this compilation (version 17134) has now been marked as the final version of the next major update.
Microsoft has not yet officially named this update, even though the company has used the Spring Creators update several times. Now it seems that Microsoft will choose "Windows 10 April 2018 Update" as the final name of Redstone 4. Microsoft watcher WalkingCat has discovered a video that references this name, but the delay of blocking errors could boost the launch of this update in May – further complicating the name of this update.
The next major update to Windows 10 will include features such as the timeline, HDR support, dictation and even more fluid design changes. Microsoft is now testing its next update, whose code name is Redstone 5, which will be available later this year. Tabbed applications will be heavily included in this update, and we hope to hear more about the new features at Microsoft's Build developers conference in May.