Marking a Windows 10 feature update as ready for broad deployment is a key milestone for each release because it pretty much means that enterprises can safely install it by themselves device fleets.
Despite the thorough testing that can take place before the debut of Windows 10 feature updates, also with the aid of Windows insiders, these often end up experiencing pretty much critical issues, a few of which are later addressed with cumulative updates shipped each month.
Due to the risk of bugs, all combined with the time needed to upgrade an entire fleet of Windows 10 devices to a new version of the operating system, many enterprises decide to simply wait for number of months after a feature update gets the go-ahead.
The "ready for broad deployment" tag virtually means that Microsoft has resolved the majority of bugs striking the operating-system, essentially telling businesses that they are able to now go to installing Windows 10 version 1903 on their devices.
"Windows 10, version 1903 (the May 2019 Update) is designated ready for broad deployment for all users via Windows Update," Microsoft says.
"As devices running the Home, Pro, and Pro for Workstation editions of Windows 10, version 03 (the April 20 Update) will reach end of service on November 12, 2019, we are broadly updating these units, as well as those running earlier versions of Windows 10 which are past end and services information, to keep these devices both supported and receiving monthly updates. If you're not offered the Windows 10, version 1903 feature update, please check below for known issues and safeguard holds that could affect your device."
Windows 10 version 1903 being marked as ready for broad deployment comes just in the proper time for Microsoft because of two different reasons.
As the company says in its announcement, November will witness the demise of Windows 10 version 03, or Windows 10 April 20 Update. Because Microsoft only props up two newest Windows 10 versions of Home, Pro, and Pro for Workstations SKUs, finalizing the rollout of the latest feature update is critical in order to allow all devices to upgrade.
Once Windows 10 version 03 is pulled, users can upgrade to Windows 10 version 09 (October 20 Update) and Windows 10 version 1903 (May 2019 Update).
Furthermore, Microsoft will finalize the introduction of another feature update for Windows 10, currently known as 19H2 - this can be a mention of the its release date, because the update ought to be complete within the other half of 2019; based on Microsoft's typical schedule, this update is prepared in September and then pushed to devices beginning with October.
Just because a new feature update is simply nearby, Microsoft needs to complete the rollout of the previous stable release, and marking it as ready for broad deployment is one essential part of this direction. Not doing this would only result in more fragmentation within the Windows 10 ecosystem, which is certainly something which Microsoft doesn't need.
Despite being flagged as ready for broad deployment, Windows 10 May 2019 Update still isn't available for all devices. Microsoft has some upgrade blocks in place to avoid the update from being installed on devices where certain issues can be experienced, and until resolving these errors, the update wouldn't be provided on Windows Update.
Users who want to ignore these upgrade blocks can install Windows 10 version 1903 using the Media Creation Tool or even the dedicated ISOs that also allow for a clean install.