A couple of weeks ago, I revealed that Microsoft had internally pegged April 10 as the release date of the next major version of Windows 10, known only as 'Version 1803' at this time. Just like with the Fall Creators Update, I had been told by contacts that Microsoft was planning to begin rolling out this new release on April's Patch Tuesday, but that's now come and gone and there's no sign of the update. So what has happened?

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According to my sources, over the weekend Microsoft found a blocking bug that, while apparently rather rare, is impactful enough to hold the release until the issue is fixed. Microsoft has internal criteria that a build needs to pass before it goes out to the public, and that criteria is extra thorough when it comes to the production 'ring,' as you might expect. Thanks to feedback from Insiders in the Fast, Slow, and Release Preview rings, this bug was caught before rollout began.

And that's pretty much it. Microsoft has decided to hold the release of Version 1803 until the company can verify the bug has been resolved, which means it'll likely be another couple of weeks before Version 1803 is given the green light for rollout. Luckily, there's no real rush for Microsoft to get this release out the door, so it can (and definitely should) take its time with this. I believe build 17133 may no longer be in the running as the RTM build of Windows 10 Redstone 4.

On the subject of taking its time, Microsoft is also yet to announce a name for Version 1803. We're not too sure why this is the case, but you can be sure we'll keep you posted on the matter. Microsoft will likely announce more details regarding its release in the next few days, so make sure you stay tuned to Windows Central for that and more on Windows 10 Version 1803.

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