by Lin, Christian, and Harvey for an in-depth walk-through of this new feature!</p><h2 id=stable-revision-labels>Stable Revision Labels</h2><p>Istio added support for deploying multiple control planes safely with revisions <a href=/v1.25/blog/2020/multiple-control-planes/>all the way back in 1.6</a> and we’ve been steadily improving support since. One of the major usability complaints about revisions has been that a lot of namespace relabeling was required to change revisions, because a label mapped direc