Mark 3935 as implemented

Author: liggitt

keps/sig-architecture/3935-oldest-node-newest-control-plane/README.md

@@ -346,28 +346,26 @@ Were v1.27 control plane changes as compatible with v1.24 nodes as n-2 nodes?
 
 Are planned v1.28 control plane changes as compatible with v1.25 nodes as n-2 nodes?
 * Feature enablement in control plane components that will wait for node support
-  * ...
+  * ✅ None
 * Removal of deprecated behavior in control plane components
   * ✅ sig-storage: planned removal of in-tree volume plugins for `CSIMigrationGCE` feature, which is guaranteed on in v1.25 nodes ([#111301](https://github.com/kubernetes/kubernetes/pull/111301).
-  * ...
 * Removal of deprecated REST APIs used by node components ([source](https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-28))
   * ✅ None
 
 Are planned v1.29 control plane changes as compatible with v1.26 nodes as n-2 nodes?
 * Feature enablement in control plane components that will wait for node support
-  * ...
+  * ✅ None
 * Removal of deprecated behavior in control plane components
   * ⚠️ sig-storage: planned removal of in-tree volume plugins for `CSIMigrationvSphere` and `CSIMigrationAzureFile` features, which are guaranteed on in v1.27 nodes ([#116610](https://github.com/kubernetes/kubernetes/pull/116610) and [#114953](https://github.com/kubernetes/kubernetes/pull/114953)).
     * Supporting n-3 nodes would delay removal of the in-tree volume plugins to v1.30.
-  * ...
 * Removal of deprecated REST APIs used by node components ([source](https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-29))
   * ✅ None
 
 Are planned v1.30 control plane changes as compatible with v1.27 nodes as n-2 nodes?
 * Feature enablement in control plane components that will wait for node support
-  * ...
+  * ✅ None
 * Removal of deprecated behavior in control plane components
-  * ...
+  * ✅ None
 * Removal of deprecated REST APIs used by node components ([source](https://kubernetes.io/docs/reference/using-api/deprecation-guide/#v1-30))
   * ✅ None
 
@@ -550,4 +548,5 @@ several inconsistencies or gaps were found. Links tracking improving those areas
 
 ## Implementation History
 
-- 2023-04-03: Provisional KEP created
+- 2023-04-03: Provisional KEP created
+- 2023-08-01: Marked as implemented

keps/sig-architecture/3935-oldest-node-newest-control-plane/kep.yaml

@@ -8,7 +8,7 @@ participating-sigs:
   - sig-cluster-lifecycle
   - sig-network
   - sig-node
-status: implementable
+status: implemented
 creation-date: 2023-04-03
 reviewers:
   - "@soltysh" # sig-apps