红帽全球峰会1.6.21. OpenShift API Server
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在此次更新之前，在从 OpenShift Container Platform 4.16 或更早版本升级的集群中，如果删除了内部 Image Registry，则之前可能会因为
openshift.io/legacy-tokenfinalizer 被删除而无法删除的镜像 pull secret。在这个版本中，这个问题不再发生。(OCPBUGS-52193) -
在以前的版本中，使用
-dry-run=server选项删除istag资源会意外导致从服务器中删除镜像的实际。这是因为oc delete istag命令中错误地实施了dry-run选项造成的意外删除。在这个版本中，dry-run选项与 'oc delete istag' 命令关联。因此，意外删除镜像对象会被阻止，在使用--dry-run=server选项时istag对象保持不变。(OCPBUGS-35855)
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