We deprecated "DeploymentConfig" in-favor of "Deployment" in OCP 4.14

Now in 4.18  we want to make "Deployment " as default out of box that means customer will get Deployment when they install OCP 4.18 . 

Deployment Config will still be available in 4.18 as non default for user who still want to use it . 

FYI "DeploymentConfig" is tier 1 API in Openshift and cannot be removed from 4.x product 

Please Review this FAQ : https://docs.google.com/document/d/1OnIrGReZKpc5kzdTgqJvZYWYha4orrGMVjfP1fUpljY/edit#heading=h.oranye5nwtsy