diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad14c9f06..95428009e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,11 @@
+# v21.0.0-snapshot
+
+Kubernetes API Version: To Be Updated
+
+### Bug or Regression
+- Fixed kubernetes-client/python#741, an issue which prevented Kubernetes cluster api-tokens from exec-plugin auth providers from being refreshed after expiry. (#250, @emenendez)
+- Use select.poll() for exec on linux/darwin to improve scalability of WSClient (#268, @jsun-splunk)
+
 # v21.7.0b1
 
 Kubernetes API Version: v1.21.7
diff --git a/kubernetes/base b/kubernetes/base
index a66f8df1d..06191d321 160000
--- a/kubernetes/base
+++ b/kubernetes/base
@@ -1 +1 @@
-Subproject commit a66f8df1dfc0e4f4a17093c7da273b9e485a55a0
+Subproject commit 06191d321491abd87caaf0d049030dc87720684a