OneAgent Operator automatically takes care of the lifecycle of the deployed OneAgents, so you don't need to update OneAgent pods yourself.
Update OneAgent Operator
Please review the release notes of the Operator for any breaking changes of the custom resource. If the custom resource of the new version is compatible with the already deployed one, you can simply set the OneAgent Operator image to the new tagged version. Be sure to replace
vX.Y.Z with the new version in the following command.
$ kubectl -n dynatrace set image deployment dynatrace-oneagent-operator *=quay.io/dynatrace/dynatrace-oneagent-operator:vX.Y.Z