--- a/doc/changes/3.27.rst	Thu Apr 18 15:09:36 2019 +0200
+++ b/doc/changes/3.27.rst	Tue Apr 23 09:33:52 2019 +0200
@@ -27,6 +27,10 @@
 
 * Python 2 support has been dropped.
 
+* Exceptions in notification hooks aren't catched-all anymore during tests so
+  one can expect tests that seem to pass (but were actually silently failing)
+  to fail now.
+
 Deprecated code drops
 ---------------------