There hasn’t been a Magic Window since spring 2020, although it used to happen twice a year. It’s that brief period of time when the Insider Program lines up with the shipping version of Windows, and you can jump off of the preview train if you want to.
If you were testing Windows 10 in the Dev channel, you could safely un-enroll your machine once build 19041 came out. If you’re in the Dev channel, you’re on build 22000, so there’s no way to easily just roll back without wiping your machine.īuild 19041 was a Magic Window. Because of that, the only way to roll back from a Windows 11 Insider Preview build is by clean installing the OS.įor example, Windows 10 version 2004 was build 19041.
When you check for updates in Windows Update, your PC pretty much sends your build number to a server, checks if there’s something with a higher build number available for you, and delivers that update if there is one. There’s a period of time in the Windows Insider Program that’s become known as the ‘Magic Window’. You’re always supposed to be getting the latest thing that’s available for testing, even though Microsoft does weird A/B testing sometimes. When you’re in the Dev channel, you’re supposed to be in a state of perpetual prerelease. Typically, while a release of Windows is in testing, it comes from the rs_prerelease branch (‘rs’ stands for Redstone, which used to be the codename for various versions of Windows 10). Also, you’re signing away any right to complain about what’s happening. It’s what you sign up for if you want to live on the edge. The Dev channel is what used to be known as the Fast ring. These aren’t tied to a specific update they’re meant to test out new features that may or may not arrive in production. If you’re in the Dev channel, you can test out Windows 11 prerelease builds right now. Windows Insider Program Dev channel – get Windows 11 prerelease builds Here’s an overview of how the Windows Insider Program works in 2021. Now that Windows 11 has been announced and is in testing with Insiders, you might be new. The rings are now channels, and they’re no longer named in a way that corresponds to the cadence of new releases. It’s no surprise, as it’s been almost seven years. We only had two rings - Fast and Slow Release Preview was added later on, partly as a way for Windows Phone users to get the Windows 10 Mobile RTM build, with the official update rolling out months later.Ī lot has changed in the Windows Insider Program. Back then, Windows 10 Insider Previews were called Windows 10 Technical Previews.
Windows 10 21H2 Build 21390: Known issues
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Windows 10 Dev Channel Build 21390: Changes and Improvements Check out all the fixes at ^AL #AreYouFlightingYet /Ki1lE05ac5 Hey #WindowsInsiders - We have a new build (21390) for folks in the Dev Channel.