diff --git a/json/src/main/java/org/eclipse/ditto/json/JsonMergePatch.java b/json/src/main/java/org/eclipse/ditto/json/JsonMergePatch.java
index 1b56b93dc1..84cf736bdb 100644
--- a/json/src/main/java/org/eclipse/ditto/json/JsonMergePatch.java
+++ b/json/src/main/java/org/eclipse/ditto/json/JsonMergePatch.java
@@ -21,9 +21,15 @@
 /**
  * Can be used to get the diff in form of a JSON merge Patch according to
  * <a href="https://datatracker.ietf.org/doc/html/rfc7386">RFC 7386</a> between two {@link JsonValue json values}.
+ *
+ * @since 2.4.0
  */
 public final class JsonMergePatch {
 
+    private JsonMergePatch() {
+        throw new AssertionError();
+    }
+
     /**
      * This method computes the change from the given {@code oldValue} to the given {@code newValue}.
      * The result is a JSON merge patch according to <a href="https://datatracker.ietf.org/doc/html/rfc7386">RFC 7386</a>.
@@ -31,6 +37,7 @@ public final class JsonMergePatch {
      * @param oldValue the original value
      * @param newValue the new changed value
      * @return a JSON merge patch according to <a href="https://datatracker.ietf.org/doc/html/rfc7386">RFC 7386</a> or empty if values are equal.
+     * @since 2.4.0
      */
     public static Optional<JsonValue> compute(final JsonValue oldValue, final JsonValue newValue) {
         @Nullable final JsonValue diff;
@@ -51,6 +58,7 @@ public static Optional<JsonValue> compute(final JsonValue oldValue, final JsonVa
      * @param oldJsonObject the original JSON object
      * @param newJsonObject the new changed JSON object
      * @return a JSON merge patch according to <a href="https://datatracker.ietf.org/doc/html/rfc7386">RFC 7386</a> or empty if values are equal.
+     * @since 2.4.0
      */
     public static Optional<JsonObject> compute(final JsonObject oldJsonObject, final JsonObject newJsonObject) {
         final JsonObjectBuilder builder = JsonObject.newBuilder();