Test with payload 4.6.0-0.nightly-2020-12-16-201440 create a deploymentconfig and check its details from console Max unavailable and Max surge value is shown on details page
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory (Important: OpenShift Container Platform 4.6.9 security and bug fix update), and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://access.redhat.com/errata/RHSA-2020:5614