diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index 5d58f1cb4e15df04671abc8aa477eb0e726e03c2..b016351032fe175ef20192afe4b6d98bd2b2771b 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -1,3 +1,9 @@
+Changes in Release 1.X.0
+--------------------------------------------------------------------------------
+
+ * Read revision version numbers from mmCIF files.
+ * Several minor bug fixes and improvements.
+
 Changes in Release 1.10.0
 --------------------------------------------------------------------------------