Merge pull request kubernetes#4136 from liggitt/kep-3935-updates

KEP-3935: Update timelines for vsphere/azurefile CSI removal

Author: k8s-ci-robot

keps/sig-storage/1491-csi-migration-vsphere/README.md

@@ -86,4 +86,11 @@ Major milestones for vSphere in-tree plugin CSI migration:
   - vSphere CSI migration to Beta, On by default
 
 - 1.26
-  - vSphere CSI migration to Stable
+  - vSphere CSI migration to Stable
+
+- 1.27
+  - vSphere CSI migration locked on
+
+- 1.30
+  - vSphere in-tree support eligible for removal
+    (oldest supported n-3 nodes are 1.27 and have vSphere CSI migration enabled)

keps/sig-storage/1885-csi-migration-azurefile/README.md

@@ -95,3 +95,10 @@ Major milestones for Azure File in-tree plugin CSI migration:
 
 - 1.26
   - AzureFile CSI migration to GA, on by default
+
+- 1.27
+  - AzureFile CSI migration locked on
+
+- 1.30
+  - AzureFile in-tree support eligible for removal
+    (oldest supported n-3 nodes are 1.27 and have AzureFile CSI migration enabled)