diff --git a/src/cdn_definitions/data.json b/src/cdn_definitions/data.json
index 649c062..6924ed5 100644
--- a/src/cdn_definitions/data.json
+++ b/src/cdn_definitions/data.json
@@ -64,6 +64,16 @@
             "0.0"
         ]
     },
+    "releasever_alias": [
+        {
+            "dest": "/content/dist/rhel0/0.9",
+            "src": "/content/dist/rhel0/0"
+        },
+        {
+            "dest": "/content/dist/rhel1/1.11",
+            "src": "/content/dist/rhel1/1"
+        }
+    ],
     "rhel_open_dist": [
         0
     ],
diff --git a/src/cdn_definitions/data.yaml b/src/cdn_definitions/data.yaml
index 359cc19..68f1792 100644
--- a/src/cdn_definitions/data.yaml
+++ b/src/cdn_definitions/data.yaml
@@ -94,6 +94,25 @@ origin_alias:
   dest: /origin/rpms
 
 
+# Aliases between two RHEL-X repositories, both of which contain the latest RHEL-X release.
+releasever_alias:
+
+# Each item defines a "src" (a floating RHEL-X repository that always contains the latest content
+# for a major RHEL release) and a "dest" (a RHEL-X.Y repository, containing the published content
+# for the latest minor release version of RHEL-X).
+#
+# For example, /content/dist/rhelX/X should be an alias for /content/dist/rhelX/X.Y, where X is a
+# major version of RHEL and X.Y is a minor version of RHEL.
+#
+# These aliases are intended for use with product versions no longer receiving releases, i.e. those
+# not covered by rhel_open_dist. For currently active versions, aliases are instead derived from
+# other fields such as env_to_releasever_mappings.
+- src: /content/dist/rhel0/0
+  dest: /content/dist/rhel0/0.9
+- src: /content/dist/rhel1/1
+  dest: /content/dist/rhel1/1.11
+
+
 # Content set prefixes which should be using symlinks at the $releasever level
 # according to normal business logic, but for historical reasons are exempt
 # and instead do not use symlinks.
diff --git a/src/cdn_definitions/schema.json b/src/cdn_definitions/schema.json
index aba448e..0bfe5f6 100644
--- a/src/cdn_definitions/schema.json
+++ b/src/cdn_definitions/schema.json
@@ -274,6 +274,9 @@
         "release_stream_mappings": {
             "$ref": "#/definitions/release_stream_mapping"
         },
+        "releasever_alias": {
+            "$ref": "#/definitions/path_alias_list"
+        },
         "rhel_open_dist": {
             "$ref": "#/definitions/major_version_list"
         },
diff --git a/src/cdn_definitions/schema.yaml b/src/cdn_definitions/schema.yaml
index 6851b5c..1c48c07 100644
--- a/src/cdn_definitions/schema.yaml
+++ b/src/cdn_definitions/schema.yaml
@@ -222,6 +222,9 @@ properties:
   origin_alias:
     $ref: "#/definitions/path_alias_list"
 
+  releasever_alias:
+    $ref: "#/definitions/path_alias_list"
+
   symlink_exceptions:
     $ref: "#/definitions/symlink_exception_list"