--- a/docs/HISTORY.txt	Thu Jan 10 17:20:58 2019 +0100
+++ b/docs/HISTORY.txt	Fri Jan 11 13:17:36 2019 +0100
@@ -1,6 +1,10 @@
 History
 =======
 
+0.1.17
+------
+ - updated debug logging to avoid exception when request doesn't contain any principal
+
 0.1.16
 ------
  - re-activate short Beaker cache on security manager methods