Pipeline build strategy is deprecated in OCP 4.3: https://docs.openshift.com/container-platform/4.3/release_notes/ocp-4-3-release-notes.html#ocp-4-3-pipelines-now-deprecated A deprecation notice should be added to the relevant API gdocs: https://github.com/openshift/api/blob/master/build/v1/types.go#L617-L618
Making priority low, severity to medium - we already have a visible deprecation notice in the web console [1]. [1] https://github.com/openshift/console/pull/3099
*** This bug has been marked as a duplicate of bug 1785289 ***
Also note that https://bugzilla.redhat.com/show_bug.cgi?id=1785291 and the associated PR there cherrypicks the deprecation notice from 4.4/master back to 4.3.z as well, where the deprecation was introduced in 4.3.0.