See the attached screenshot.
This is portion of a configuration comparison of a particular interface on a Cisco Catalyst 4948 switch. If I'm not mistaken, green means NEW items in a config, red means REMOVED items, and yellow means CHANGED. This being true, The "switchport access vlan 101" didn't CHANGE TO "description T0311SVR01". "switchport access vlan 101" changed to "switchport access vlan 6". "description T0311SVR01" should have been listed in GREEN, as it was a newly added item.
Cirrus isn't accurately detecting whether changes are added, removed, or changed. It's detecting the changes, but just not evaluating and categorizing them properly.