@@ -33,17 +33,21 @@
 /*!
  * The version which is unsupported.
  */
 @property (readonly, nonatomic) OFString *version;
 
++ (instancetype)exception OF_UNAVAILABLE;
+
 /*!
  * @brief Creates a new, autoreleased unsupported version exception.
  *
  * @param version The version which is unsupported
  * @return A new, autoreleased unsupported version exception
  */
 + (instancetype)exceptionWithVersion: (OFString *)version;
+
+- init OF_UNAVAILABLE;
 
 /*!
  * @brief Initializes an already allocated unsupported protocol exception.
  *
  * @param version The version which is unsupported