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| author | Richard Eisenberg <eir@cis.upenn.edu> | 2013-08-20 14:05:29 -0400 |
|---|---|---|
| committer | Richard Eisenberg <eir@cis.upenn.edu> | 2013-08-20 14:14:52 -0400 |
| commit | 8d7272b51b799ffb56e1ac51488e018c73388013 (patch) | |
| tree | 9dd6c56b45564f1709dbbee149ba0d3f809045ed | |
| parent | d0b8c46dff800f7e2100f48f589dccaa8eb92869 (diff) | |
| download | haskell-8d7272b51b799ffb56e1ac51488e018c73388013.tar.gz | |
Added bullet in release notes about roles.
| -rw-r--r-- | docs/users_guide/7.8.1-notes.xml | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/docs/users_guide/7.8.1-notes.xml b/docs/users_guide/7.8.1-notes.xml index 46c6fa402c..5d8f077d41 100644 --- a/docs/users_guide/7.8.1-notes.xml +++ b/docs/users_guide/7.8.1-notes.xml @@ -41,6 +41,17 @@ </para> </listitem> + <listitem> + <para> + Use of the <literal>GeneralizedNewtypeDeriving</literal> + extension is now subject to <emphasis>role checking</emphasis>, + to ensure type safety of the derived instances. As this change + increases the type safety of GHC, it is possible that some code + that previously compiled will no longer work. + + TODO FIXME: reference. + </para> + </listitem> <listitem> <para> |