[ceph-users] how to enable multisite resharding feature?

https://docs.ceph.com/en/latest/radosgw/multisite/#feature-resharding When I try this I get: root@ceph-m-02:~# radosgw-admin zone modify --rgw-zone=sel --enable-feature=resharding ERROR: invalid flag --enable-feature=resharding root@ceph-m-02:~# ceph version ceph version 17.2.5 (98318ae89f1a893a6ded3a640405cdbb33e08757) quincy (stable)