"The business-ready milestone is designed to give enterprises confidence that 1903 is both stable and reliable and can be widely deployed."
"Microsoft has officially told corporate customers that Windows 10 May 2019 Update - the year's first feature upgrade - is suitable for widespread deployment.
The announcement last week came four months after the launch of the upgrade, which also goes by 1903 in Microsoft's yymm format."
Read More. Source: ComputerWorld