Windows 10 build 20215 released to the Dev Channel

Microsoft just released a new Dev build of Windows 10 to Insiders. Windows 10 Insider Preview Build 20215 is now available to everyone who have set their devices to receive bleeding edge builds.

The change log mentions the dark theme support in Windows Search. Actually, this is a server-side change, and it is already available in the previous build of Windows 10.

Other changes include fixes and general improvements.

Fixes

• We fixed an issue that could result in the Windows Security app hanging.
• We fixed an issue that could result in the Windows Security app crashing when navigating to the Exclusions page when there were a large number of exclusions.
• We fixed an issue where using a restore point that had been created prior to a Microsoft Edge update to do a system restore could result in Microsoft Edge not launching after the restore was finished.
• We fixed an issue resulting in the text cursor unexpectedly moving to the beginning of a text field when typing with the Korean IME in certain apps.
• We fixed an issue impacting Voice Typing reliability.
• We’ve fixed an issue where on a small subset of devices the Start menu did not reflect when an update was pending restart and scheduled restarts are cancelled.

Known issues

• We’re looking into reports of the update process hanging for extended periods of time when attempting to install a new build.
• We’re working on a fix to enable live preview for pinned site tabs.
• We’re working on enabling the new taskbar experience for existing pinned sites. In the meantime, you can unpin the site from the taskbar, remove it from the edge://apps page, and then re-pin the site.
• We’re investigating reports of some Office applications crashing or missing after updating to a new build.
• We’re working on a fix for an issue resulting in Settings crashing for some Insiders when opening Manage Disks and Volumes.
• We’re investigating reports of some devices experiencing a KMODE_EXCEPTION bugcheck when using certain virtualization technologies.
• We’re working on a fix for the Linux kernel not being installed when using the wsl –install command in the Windows Subsystem for Linux. For an immediate workaround run wsl –update to get the latest kernel version.
• We are investigating an issue affecting Windows Subsystem for Linux 2 distros where users can receive the error: “The remote procedure call failed” on startup.
• We’re investigating a bug where the vEthernet adapter in Windows Subsystem for Linux 2 distros becomes disconnected after a period of use. For full details please follow this Github thread.
• We’re working on a fix for seeing generic errors when using wsl –install in the Windows Subsystem for Linux.

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The Dev Channel, formerly known as the Fast Ring, reflects the latest changes made to the Windows code base. It is a work-in-progress, so the changes you see in Dev Channel releases may not appear in the upcoming feature update. So we can expect to see some features which will never appear in stable Windows 10 versions on Desktop.
Also, it is possible that will see <aMicrosoft to bring some Windows 10X features to Windows 10 href="https://winaero.com/blog/windows-10x-will-install-feature-updates-under-90-seconds/">some of Windows 10X features on Desktop. Microsoft is about to add some of Windows 10X's features to get the best of two Windows branches. The company may also replace some of the Desktop feature updates with Windows 10X releases.

If you have configured your device to receive updates from the Dev Channel/Fast Ring ring, open Settings - > Update & recovery and click on the Check for Updates button on the right. This will install the latest available Insider Preview of Windows 10.