1.1 --- a/NEWS	Thu Jun 09 10:19:51 2011 +0200
     1.2 +++ b/NEWS	Thu Jun 09 10:43:42 2011 +0200
     1.3 @@ -97,6 +97,11 @@
     1.4      (currently only supported by the default (exhaustive) tester)
     1.5    - Added post-processing of terms to obtain readable counterexamples
     1.6      (currently only supported by the default (exhaustive) tester)
     1.7 +  - New counterexample generator quickcheck[narrowing] enables
     1.8 +    narrowing-based testing.
     1.9 +    It requires that the Glasgow Haskell compiler is installed and
    1.10 +    its location is known to Isabelle with the environment variable
    1.11 +    ISABELLE_GHC.
    1.12  
    1.13  * Function package: discontinued option "tailrec".
    1.14  INCOMPATIBILITY. Use partial_function instead.