Rollback of a patch release transitions the software to a version without the specific patch. It will not roll back to the previous major version.
Selective ability to rollback the patch on the NSX Advanced Load Balancer Controller and SE groups is available.
This interface is used to roll back the patch and not the major version.
The followings are the available options:
System: rollback patch for NSX Advanced Load Balancer Controller and all SE groups
Controller: rollback patch the NSX Advanced Load Balancer Controller only.
SE-group: rollback patch for all or some of the SE groups.