Release notes should mention better newtype-deriving
[ghc-hetmet.git] / docs / users_guide / 6.6-notes.xml
index 9b215b0..f807a33 100644 (file)
           <literal>MyIO <replaceable>t</replaceable></literal>
           rather than just
           <literal>IO <replaceable>t</replaceable></literal>.
+         See <xref linkend="ffi-newtype-io"/>
         </para>
       </listitem>
+      <listitem> <para> GHC's mechansim for deriving user-defined classes
+         for newtypes has been further generalised, to multi-parameter type
+         classes and higher-kinded types.  See <xref
+         linkend="newtype-deriving"/>.
+         </para></listitem>
       <listitem>
         <para>
           By default, pattern bindings in GHC are now monomorphic.