Add CRD conversion webhook to v1beta1 criteria to KEP

Author: jpbetz

keps/sig-api-machinery/20190425-crd-conversion-webhook.md

@@ -6,13 +6,12 @@ authors:
 owning-sig: sig-api-machinery
 participating-sigs:
 reviewers:
-  - "@dbsmith"
+  - "@lavalamp"
   - "@deads2k"
   - "@sttts"
   - "@liggit"
-  - "@enisoc"
 approvers:
-  - "@dbsmith"
+  - "@lavalamp"
   - "@deads2k"
 creation-date: 2019-04-25
 last-updated: 2019-04-25
@@ -736,8 +735,23 @@ Consider including folks that also work outside the SIG or subproject.
 
 ## Graduation Criteria
 
+v1beta1:
 
 
+- Ensure the scenarios from (https://github.com/kubernetes/kubernetes/issues/64136) are tested:
+  - Ensure what is persisted in etcd matches the storage version
+  - Set up a CRD, persist some data, change the storage version, and ensure the previously persisted data is readable
+  - Ensure discovery docs track a CRD through creation, version addition, version removal, and deletion
+  - Ensure `spec.served` is respected
+
+v1:
+
+- ConversionReview API v1 is stable (including fields that need to be updated for v1beta1 or v1)
+- Documented step-by-step CRD version migration workflow that covers the entire
+  process of migrating from one version to another (introduce a new CRD version,
+  add the converter, migrate clients, migrate to new storage version, all the
+  way to removing the old version)
+
 ## Implementation History
 
 - Implemented in Kubernetes 1.13 release (https://github.com/kubernetes/kubernetes/pull/67006)