diff --git a/CHANGELOG.md b/CHANGELOG.md
index 323cd3923..514d6fa38 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,13 @@
 **New Feature:**
 - Add dynamic client [kubernetes-client/python-base#56](https://github.com/kubernetes-client/python-base/pull/56)
 
+**Breaking Change:**
+- The Python client will be generated by openapi-generator, with the following breaking changes [kubernetes-client/gen#97](https://github.com/kubernetes-client/gen/pull/97)
+- `kubernetes.client.apis` package is renamed to `kubernetes.client.api`
+- `kubernetes` package code now uses absolute import instead of relative import
+- API requests won't have `Content-Type` specified in HTTP headers
+- The `swagger_types` attribute in all models is renamed to `openapi_types`
+
 # v10.0.0
 **Bug Fix:**
 - Fix base64 padding for kube config [kubernetes-client/python-base#79](https://github.com/kubernetes-client/python-base/pull/79)