--- a/NEWS Fri Aug 06 22:43:51 1999 +0200
+++ b/NEWS Mon Aug 09 20:53:06 1999 +0200
@@ -196,6 +196,11 @@
* refined token_translation interface; INCOMPATIBILITY: output length
now of type real instead of int;
+* theory loader actions may be traced via new ThyInfo.add_hook
+interface (see src/Pure/Thy/thy_info.ML); example application: keep
+your own database of information attached to *whole* theories -- as
+opposed to intra-theory data slots offered via TheoryDataFun;
+
New in Isabelle98-1 (October 1998)