a bit more info to the changelog

CHANGELOG.md

@@ -9,10 +9,12 @@ UNRELEASED
   - BREAKING: custom clients via `Client::new` must pass `config.default_namespace` as 2nd arg
  * `kube`: Added `CustomResourceExt` trait for `kube-derive` - [#497](https://github.com/clux/kube-rs/issues/497) via [#545](https://github.com/clux/kube-rs/issues/545)
   - BREAKING: `kube-derive` users must import `kube::CustomResourceExt` (or `kube::core::crd::v1beta1::CustomResourceExt` if using legacy `#[kube(apiextensions = "v1beta1")]`) to use generated methods `Foo::crd` or `Foo::api_resource`
-  - BREAKING: `k8s_openapi` bumped to [0.12.0](https://github.com/Arnavion/k8s-openapi/releases/tag/v0.12.0)
+  - BREAKING: `k8s_openapi` bumped to [0.12.0](https://github.com/Arnavion/k8s-openapi/releases/tag/v0.12.0) - [#531](https://github.com/clux/kube-rs/pulls/531)
     * Generated structs simplified + `Resource` trait expanded
     * Adds support for kubernetes `v1_21`
+    * Contains bugfix for [kubernetes#102159](https://github.com/kubernetes/kubernetes/pull/102159)
  * `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
 
 0.56.0 / 2021-06-05
 ===================