Added some failures and a new exception
diff --git a/Changes b/Changes
index 2bfc523..cc49dee 100644
--- a/Changes
+++ b/Changes
@@ -7,6 +7,8 @@
         - [feature] Presorting of element terms in the index for coherent
 	  SpanQuery sorting; Removed buffering of element candidates (diewald)
 	  Warning: This is a breaking change!
+	- [feature] Added CorpusDataException to deal with data importing bugs;
+          made some imports break more easily though (diewald)
 	- [performance] Payloads in ElementSpans can now be lazily loaded,
 	  MatchModifyClassSpans no longer rely on payload copies (diewald)
 	- [cleanup] Renamed /filter to /collection,