Windows 10 build 20277 hits Dev channel Insiders as testing splits

Windows 10 build 20277 is now available for Dev channel Insiders to test and, if you're paying attention, you may notice that'due south the second build to roll out to the Dev channel today. That'south considering Microsoft has, at least temporarily, split up the Dev channel in two. Hither's a expect at what's going on.

Starting today, Microsoft is giving Dev aqueduct Insiders the option to starting time testing builds from the RS_PRERELEASE branch, which is where build 21277 comes in. You have to opt in to testing from this branch, and yous'll keep to receive builds from RS_PRERELEASE going frontwards if you do.

If you decide not to opt in, yous'll stay testing builds from the FE_PRERELEASE branch, which receives build 20277 today. This is the build that will automatically get out to Dev channel Insiders today unless they opt in to jump on the RS_PRERELEASE branch. In terms of changes, 20277 is much less aggressive, containing but a couple of fixes.

Looking frontwards, Microsoft says it plans to merge all Dev channel testers to RS_PRERELEASE at some point after the holidays. For now, here's a wait at what's in the 20277 release notes.

What'south new in Windows 10 build 20277

Fixes

We fixed an issue that could issue in the WinRE volume label being lost after multiple upgrades.
We fixed an issue that could event in apps failing to update with error code 0x80073D02.

Known issues

Nosotros're looking into reports of the update procedure hanging for extended periods of time when attempting to install a new build.
Live previews for pinned sites aren't enabled for all Insiders even so, and then you lot may encounter a grey window when hovering over the thumbnail in the taskbar. We're continuing to piece of work on polishing this experience.
We're working on enabling the new taskbar feel for existing pinned sites. In the meantime, you can unpin the site from the taskbar, remove it from the edge://apps page, and and so re-pin the site.
We're working on a set up for an event resulting in some users seeing mistake 0x80070426 when using their Microsoft business relationship to sign into diverse apps. If you encounter information technology, rebooting your PC may resolve this.
We're working on a gear up for an issue where, in contempo Dev Channel builds, no drives appear nether Settings > Organisation > Storage > Manage Disks and Volumes. As a workaround, you tin can manage your disks in the classic Disk Management tool.

If yous're already on the Dev channel, you'll get 20277 via Windows Update automatically. If yous'd rather switch to testing 21277, information technology's available as a "seeker" experience in Windows Update, pregnant you'll take to manually cull to install it.

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