On May 18, Microsoft is kicking off the process of rolling out its latest Windows 10 feature update, known as Windows 10 21H1, to mainstream users. For the past several months, 21H1 has been in testing with Windows Insiders.
There is only a handful of new features in Windows 10 21H1, including support for multiple Windows Hello-enabled cameras; Windows Defender Application Guard improvements, and improvements in Windows Management Instrumentation via Group Policy. The new Chromium-based Edge browser also is available as part of today's 21H1 release.
Like Windows 10 2004 and 20H2, Windows 10 21H1 is a minor feature update. For users already running 2004 or 20H2, Windows 10 21H1 will install quickly -- and hopefully, painlessly -- thanks to an enablement package that will activate the new features. As Microsoft officials said recently, 19043 is the "final" build for 21H1, which will be updated regularly with fixes and security updates.
For anyone running a version older than 2004, the 21H1 update will feel and update like a regular Windows 10 feature update.
As Microsoft has been doing lately with Windows 10 feature updates, it will be throttling the delivery of the 21H1 update, delivering it first to devices where it is likely to have fewer issues. As has been the case recently, Microsoft will likely issue "safeguard holds," designed to prevent the feature update from installing on devices where there are known issues and incompatibilities.