Merge pull request kubernetes#3499 from logicalhan/additional-stability-classes

KEP-3498: Extend stability classes for Kubernetes metrics framework

Author: k8s-ci-robot

keps/prod-readiness/sig-instrumentation/3498.yaml

@@ -0,0 +1,6 @@
+# The KEP must have an approver from the
+# "prod-readiness-approvers" group
+# of http://git.k8s.io/enhancements/OWNERS_ALIASES
+kep-number: 3498
+alpha:
+  approver: "@wojtek-t"