AWS Key Management Service Update: Add HMAC best practice tip, annual rotation of AWS managed keys.

Author: AWS

.changes/next-release/feature-AWSKeyManagementService-8677c2f.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Key Management Service",
+    "contributor": "",
+    "description": "Add HMAC best practice tip, annual rotation of AWS managed keys."
+}