- The `--quiet` option to `kubectl run` now suppresses resource deletion messages emitted when the `--rm` option is specified. ([#73266](https://github.com/kubernetes/kubernetes/pull/73266), [@awh](https://github.com/awh))

- `kubectl exec` and `kubectl attach` now honor the `--quiet` flag which suppresses output from the local binary that could be confused by a script with the remote command output (all non-failure output is hidden). In addition, print inline with exec and attach the list of alternate containers when we default to the first spec.container....