X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;ds=sidebyside;f=docs%2Fusers_guide%2F6.12.1-notes.xml;h=9e0ecbfbf84c6d8afd9f5795f0ac3d6510f688fe;hb=0e1c226ee99011d9af202de78e2a7a37511f4b72;hp=f1d1ed5c7b81d932abaf2d2cc780e78b59d7bf4e;hpb=8a1f533adf691a008ba2ffd0487f9b9254517020;p=ghc-hetmet.git

diff --git a/docs/users_guide/6.12.1-notes.xml b/docs/users_guide/6.12.1-notes.xml
index f1d1ed5..9e0ecbf 100644
--- a/docs/users_guide/6.12.1-notes.xml
+++ b/docs/users_guide/6.12.1-notes.xml
@@ -692,6 +692,19 @@ ghc --abi-hash M1 M2 ...
 
         <listitem>
           <para>
+            Lazy I/O now throws an exception if an error is
+            encountered, in a divergence from the Haskell 98 spec which
+            requires that errors are discarded (see Section 21.2.2 of
+            the Haskell 98 report).  The exception thrown is the usual
+            IO exception that would be thrown if the failing IO
+            operation was performed in the IO monad, and can be caught
+            by <literal>System.IO.Error.catch</literal>
+            or <literal>Control.Exception.catch</literal>.
+          </para>
+        </listitem>
+
+        <listitem>
+          <para>
             It is now possible to create your own handles.
             For more information, see the
             <literal>GHC.IO.Handle</literal> haddock docs.