NEWS
changeset 62851 07eea2843b82
parent 62842 db9f95ca2a8f
child 62861 cfd2749e1352
--- a/NEWS	Mon Apr 04 19:48:54 2016 +0200
+++ b/NEWS	Mon Apr 04 20:07:08 2016 +0200
@@ -230,6 +230,10 @@
 
 *** ML ***
 
+* Low-level ML system structures (like PolyML and RunCall) are no longer
+exposed to Isabelle/ML user-space. The system option ML_system_unsafe
+allows to override this for special test situations.
+
 * Antiquotation @{make_string} is available during Pure bootstrap --
 with approximative output quality.