Note the user visible part of this change is:

This enhancement causes differences in gavs, it is backward incompatible change. "cd" is added:

/opt/jboss/container/wildfly/s2i/galleon/galleon-m2-repository/org/jboss/eap/wildfly-galleon-pack
/opt/jboss/container/wildfly/s2i/galleon/galleon-m2-repository/org/jboss/eap/cd/wildfly-galleon-pack

Which if a user is building an image we should note as a difference vs EAP 7.3.x etc

(See the linked CLOUD issue for the underlying change).