diff --git a/changelogs/internal/newsfragments/1876.clarification b/changelogs/internal/newsfragments/1876.clarification
new file mode 100644
index 000000000..9f8409140
--- /dev/null
+++ b/changelogs/internal/newsfragments/1876.clarification
@@ -0,0 +1 @@
+Render added/changed in info on request and response content types.
diff --git a/layouts/partials/openapi/render-content-type.html b/layouts/partials/openapi/render-content-type.html
index 036522ded..7c58ea6b8 100644
--- a/layouts/partials/openapi/render-content-type.html
+++ b/layouts/partials/openapi/render-content-type.html
@@ -4,13 +4,16 @@
   two arrays with equal length:
 
   * `content_types`: the content type strings
-
   * `descriptions`: the description strings
+  * `added_in`: the "added in" version
+  * `changed_in`: the "changed in" dictionary
 
 */}}
 
 {{ $content_types := .content_types }}
 {{ $descriptions := .descriptions}}
+{{ $added_in := .added_in}}
+{{ $changed_in := .changed_in}}
 
 {{ if (gt (len $content_types) 0) }}
 
@@ -22,7 +25,11 @@
  {{ range $idx, $content_type := $content_types }}
  <tr>
   <td><code>{{ $content_type }}</code></td>
-  <td>{{ index $descriptions $idx | markdownify -}}</td>
+  <td>
+   {{ index $descriptions $idx | markdownify -}}
+   {{ if (index $added_in $idx) }}{{ partial "added-in" (dict "v" (index $added_in $idx)) }}{{ end -}}
+   {{ if (index $changed_in $idx) }}{{ partial "changed-in" (dict "changes_dict" (index $changed_in $idx)) }}{{ end -}}
+  </td>
  </tr>
  {{ end }}
 </table>
diff --git a/layouts/partials/openapi/render-request.html b/layouts/partials/openapi/render-request.html
index 5fa0c2559..1fbfc96c5 100644
--- a/layouts/partials/openapi/render-request.html
+++ b/layouts/partials/openapi/render-request.html
@@ -52,11 +52,15 @@ <h3>Request body</h3>
             */}}
             {{ $mimes := slice }}
             {{ $descriptions := slice }}
+            {{ $added_in := slice }}
+            {{ $changed_in := slice }}
             {{ range $mime, $body := $request_body.content }}
                 {{ $mimes = $mimes | append $mime }}
                 {{ $descriptions = $descriptions | append $request_body.description }}
+                {{ $added_in = $added_in | append (index $request_body "x-addedInMatrixVersion") }}
+                {{ $changed_in = $changed_in | append (index $request_body "x-changedInMatrixVersion") }}
             {{ end }}
-            {{ partial "openapi/render-content-type" (dict "content_types" $mimes "descriptions" $descriptions) }}
+            {{ partial "openapi/render-content-type" (dict "content_types" $mimes "descriptions" $descriptions "added_in" $added_in "changed_in" $changed_in) }}
         {{ end }}
 
 <h3>Request body example</h3>
diff --git a/layouts/partials/openapi/render-responses.html b/layouts/partials/openapi/render-responses.html
index 0ffc48844..683d2c6c1 100644
--- a/layouts/partials/openapi/render-responses.html
+++ b/layouts/partials/openapi/render-responses.html
@@ -123,11 +123,15 @@ <h3>{{$code}} response</h3>
             */}}
             {{ $mimes := slice }}
             {{ $descriptions := slice }}
+            {{ $added_in := slice }}
+            {{ $changed_in := slice }}
             {{ range $mime, $body := $response.content }}
                 {{ $mimes = $mimes | append $mime }}
                 {{ $descriptions = $descriptions | append $body.schema.description }}
+                {{ $added_in = $added_in | append (index $body.schema "x-addedInMatrixVersion") }}
+                {{ $changed_in = $changed_in | append (index $body.schema "x-changedInMatrixVersion") }}
             {{ end }}
-            {{ partial "openapi/render-content-type" (dict "content_types" $mimes "descriptions" $descriptions) }}
+            {{ partial "openapi/render-content-type" (dict "content_types" $mimes "descriptions" $descriptions "added_in" $added_in "changed_in" $changed_in) }}
         {{ end }}
     {{ end }}
 {{ end }}