I upgraded one of my WHM to 11.40 to kick the tires, enabled IPv6 then assigned hostigation.com an IPv6, and the final step, WHM makes the changes/additions needed to the zone file.
This is where the gates of hell open. WHM decided to change every AAAA record in the zone to the ip assigned to hostigation.com, well I have most servers IPv6 enabled, so it changed a shit ton of records, then anything that didn't have an AAAA record it created one.
I did have a backup of the zone file, so recovery was not a huge issue, just a word of warning if you get adventurous. cPanel has recreated the issue and assigned it bug 80657
This is where the gates of hell open. WHM decided to change every AAAA record in the zone to the ip assigned to hostigation.com, well I have most servers IPv6 enabled, so it changed a shit ton of records, then anything that didn't have an AAAA record it created one.
I did have a backup of the zone file, so recovery was not a huge issue, just a word of warning if you get adventurous. cPanel has recreated the issue and assigned it bug 80657