This period marked a transition where Microsoft began requiring SHA-2 code signing support for updates. Without specific prerequisite patches like KB4474419, systems could no longer receive new security updates.
Ultimate shared a nearly identical feature set with the Enterprise edition, including support for DirectAccess and BranchCache .
As extended support was set to end on January 14, 2020, the August 2019 updates were among the final security-only patches provided to the general public.
Unlike lower versions, Ultimate allowed users to install and switch between 35 different language packs seamlessly.
It included BitLocker Drive Encryption , which protected data on internal and removable drives, a feature missing from the Home Premium edition.