diff --git a/spec/schemas/_common.mapping.yaml b/spec/schemas/_common.mapping.yaml
index 71c470355..14edfcebe 100644
--- a/spec/schemas/_common.mapping.yaml
+++ b/spec/schemas/_common.mapping.yaml
@@ -934,7 +934,7 @@ components:
         - recursive
         - term
     XyPointProperty:
-      x-version-added: 2.4
+      # x-version-added: 2.4
       allOf:
         - $ref: '#/components/schemas/DocValuesPropertyBase'
         - type: object
@@ -952,7 +952,7 @@ components:
           required:
             - type
     XyShapeProperty:
-      x-version-added: 2.4
+      # x-version-added: 2.4
       allOf:
         - $ref: '#/components/schemas/DocValuesPropertyBase'
         - type: object
diff --git a/spec/schemas/_common.yaml b/spec/schemas/_common.yaml
index 53de68f0b..845204b3a 100644
--- a/spec/schemas/_common.yaml
+++ b/spec/schemas/_common.yaml
@@ -147,14 +147,14 @@ components:
             type: number
         - type: string
     XyCartesianCoordinates:
-      x-version-added: 2.4
+      x-version-added: '2.4'
       type: object
       properties:
         x:
-          description: The x coordinate
+          description: The x coordinate.
           type: number
         y:
-          description: The y coordinate
+          description: The y coordinate.
           type: number
       required:
         - x