In the patch notes for the spring 2019 update, this is listed.
"Added: LAN-1822 Detailed information is now scanned from Microsoft Exchange Server: version, edition, users, groups, CALs, mailbox lists and sizes, ActiveSync devices etc"
I've updated to the spring release and rescanned my exchange servers and the only things I'm seeing is hostname and mailboxes. No version, edition, users groups, CALS, mailbox sizes, etc.