diff --git a/NEWS b/NEWS
index ae6b4469b61f802b8ad39ffc81a42506d7f0223c..d95f0a92fc46eba126efd6d4b008013860821678 100644
--- a/NEWS
+++ b/NEWS
@@ -1,4 +1,8 @@
-New in version 1.9.2
+New in version 1.9.4
+ * removed .undef files
+ * refactored code: now hashing a kmer and its reverse in the same loop.
+
+New in version 1.9.3
  * Now using sysinfo to determine the amount of RAM available under a linux system.
  * refactored code.
  * New usage function