// namespaces specifies a static list of namespace names that the term applies to.
  // The term is applied to the union of the namespaces listed in this field
  // and the ones selected by namespaceSelector.
  // null or empty namespaces list and null namespaceSelector means "this pod's namespace".
  // +optional
  repeated string namespaces = 2;

### API Change

- 1. PodAffinityTerm includes a namespaceSelector field to allow selecting eligible namespaces based on their labels. 

* NetworkPolicies can now target specific pods in other namespaces by including both a namespaceSelector and a podSelector in the same peer element. ([#60452](https://github.com/kubernetes/kubernetes/pull/60452), [@danwinship](https://github.com/danwinship))

    *   Added `namespaceSelector` to `externalAdmissionWebhook` configuration to allow applying webhooks only to objects in the namespaces that have matching labels. ([#54727](https://github.com/kubernetes/kubernetes/pull/54727),[ @caesarxuchao](https://github.com/caesarxuchao))...

- The `podAffinity`, `NamespaceSelector` and the associated `CrossNamespaceAffinity` quota scope features graduate to Beta and they are now enabled by default. ([#101496](https://github.com/kubernetes/kubernetes/pull/101496), [@ahg-g](https://github.com/ahg-g))