Upstream PR: https://github.com/redhat-cop/openshift-migration-best-practices/pull/63/files

The procedure described in above PR would help a customer who is relying on an application image available in OCP 3.x which has been deprecated, a mysql version for example.

We have an example of some of these images described below (the list is likely out of date, may not be feasible to update on each OCP release):

https://docs.openshift.com/container-platform/4.6/migration/migrating_3_4/migrating-application-workloads-3-4.html#migration-prerequisites_migrating-3-4