You made all cpanel modules that was using WHM API to stop working because you deprecated XML (if i remember correctly) kind of API. And because of this i am afraid to upgrade from now on, because your upgrades are not reversible i think? Unless there is some tutorial for manual backup and restore of the WHM files.
My next concern is regarding article: cPanel TSR-2019-0001 Announcement | cPanel Newsroom
it says "This Targeted Security Release addresses 8 vulnerabilities in cPanel & WHM software versions 78, 76, and 70."
When one have version 72,74 then is not affected by that security bugs? You made some changes in WHM API since these versions that would make v74 WHM API functions to stop working?
My next concern is regarding article: cPanel TSR-2019-0001 Announcement | cPanel Newsroom
it says "This Targeted Security Release addresses 8 vulnerabilities in cPanel & WHM software versions 78, 76, and 70."
When one have version 72,74 then is not affected by that security bugs? You made some changes in WHM API since these versions that would make v74 WHM API functions to stop working?