message: put a warning on the last two versions due to the serialize bug
diff: @@ -14,6 +14,9 @@ UNRELEASED
  - Added: `Controller::owns_with` and `Controller::watches_with` to pass a `dyntype` argument for dynamic `Api`s - #575
  - BREAKING: `controller::trigger_*` now returns a `ReconcileRequest` rather than `ObjectRef`. The `ObjectRef` can be accessed via the `obj_ref` field
  +### Known Issues
  +- Api::replace can fail to unset list values with k8s-openapi 0.12 #581
  +
  0.57.0 / 2021-06-16
  ===================
  * `kube`: custom clients now respect default namespaces - fixes [#534](https://github.com/clux/kube-rs/issues/534) via [#544](https://github.com/clux/kube-rs/issues/544)
  @@ -27,6 +30,9 @@ UNRELEASED
  * `kube` resource plurals is no longer inferred from `k8s-openapi` structs - [#284](https://github.com/clux/kube-rs/issues/284) via [#556](https://github.com/clux/kube-rs/issues/556)
  - BREAKING: `kube::Resource` trait now requires a `plural` implementation
  +### Known Issues
  +- Api::replace can fail to unset list values with k8s-openapi 0.12 #581
  +
  0.56.0 / 2021-06-05
  ===================
  * `kube`: added `Api::default_namespaced` - [#209](https://github.com/clux/kube-rs/issues/209) via [#534](https://github.com/clux/kube-rs/issues/534)
  