Last week we reported the Windows 10 Spring Creators Update will roll out to all users on April 10. The latest feature update for Windows has been in preview since last year. Now Microsoft has put the final touches to the preview stage by releasing Windows 10 build 17133 to the Release Preview ring for Windows Insiders.

The Release Preview branch is the last stage of testing before Microsoft launches a build to all users. Windows 10 build 17133 is the Release to Manufacturing (RTM) build of the Spring Creators Update.

Until today, we were still wondering if this build was the RTM. Windows 10 build 17133 arrived on the Fast Ring on March 27 and it certainly seemed as if it was the finalized version of the Spring Creators Update. Still, only today has that been confirmed by its progression to the Release Preview.

Of course, this is all based on the caveat that Microsoft has still not said anything official about when the full update will officially launch. We know from other sources that it will be April 10, and this RTM build lines up perfectly with that date. So, we expect to see the Spring Creators Update begin its roll out next Tuesday.

It’s worth remembering that most people will not be able to download the update on that release day. As with other major Windows 10 releases, Microsoft is rolling out the Spring Creators Update in stages. That means many users will get the update in the weeks and months ahead.

As I wrote earlier this week, business users should avoid updating to the new release. Windows builds can be volatile when new, especially across numerous machines in a network settings. Microsoft has made some adjustments to its deferral system to give organizations more tools to hold off on updating.

Redstone 4

Known as Redstone 4 through its development, the Spring Creators Update will come loaded with new features. Probably the most exciting is Timeline, which gives users in Windows 10 the ability to see what they are doing at a particular time. It is a PC version of Microsoft’s “Pick Up Where You Left Off” feature.

Using the Timeline lets you see activity through past Windows 10 use, set out in cards for more efficient movement between apps. Microsoft plans to make activities dynamic across devices, allowing users to pick up any Windows 10 device and have a connected experience.