diff -r 0701f25fac39 -r 0ae225877b68 NEWS
--- a/NEWS	Tue Mar 22 12:39:37 2016 +0100
+++ b/NEWS	Tue Mar 22 12:39:37 2016 +0100
@@ -33,17 +33,21 @@
 eliminated altogether.
 
 * (Co)datatype package:
-  - the predicator :: ('a => bool) => 'a F => bool is now a first-class
+  - New commands for defining corecursive functions and reasoning about
+    them in "~~/src/HOL/Library/BNF_Corec.thy": 'corec', 'corecursive',
+    'friend_of_corec', and 'corecursion_upto'; and 'corec_unique' proof
+    method.
+  - The predicator :: ('a => bool) => 'a F => bool is now a first-class
     citizen in bounded natural functors
-  - "primrec" now allows nested calls through the predicator in addition
+  - 'primrec' now allows nested calls through the predicator in addition
     to the map function.
-  - "bnf" automatically discharges reflexive proof obligations
-    "bnf" outputs a slightly modified proof obligation expressing rel in
+  - 'bnf' automatically discharges reflexive proof obligations
+  - 'bnf' outputs a slightly modified proof obligation expressing rel in
        terms of map and set
        (not giving a specification for rel makes this one reflexive)
-    "bnf" outputs a new proof obligation expressing pred in terms of set
+  - 'bnf' outputs a new proof obligation expressing pred in terms of set
        (not giving a specification for pred makes this one reflexive)
-    INCOMPATIBILITY: manual "bnf" declarations may need adjustment
+    INCOMPATIBILITY: manual 'bnf' declarations may need adjustment
   - Renamed lemmas:
       rel_prod_apply ~> rel_prod_inject
       pred_prod_apply ~> pred_prod_inject