Probably there's a situational-detail aspect to this, but my general view would be that user information always can be revised to accomplish a justifiable goal, i.e. improve safety and/or effectiveness or something else for which a rationale exists, as long as the revised information is consistent with the product regulatory clearance, the change is controlled, and the revision-level of the presented information is clearly communicated to users in a manner that assures they understand what revision they should be reading in relation to their device version and clinical situation.