diff --git a/Updating-and-release-notes.md b/Updating-and-release-notes.md
index 71c25c2..bd1db31 100644
--- a/Updating-and-release-notes.md
+++ b/Updating-and-release-notes.md
@@ -1,4 +1,4 @@
-### Current version: `3.0.1b2`
+### Current version: `3.0.1b3`
 
 You can check the version installed by running `obi --version`
 
@@ -21,6 +21,9 @@ python3 setup.py install
 
 ### Release notes:
 
+* `3.0.1b3`:
+  - `uniq`: now OK to use -m option even if only one unique key in information to merge (e.g. one sample)
+
 * `3.0.1b2`:
   - Made the OBITools3 more 'empty file friendly'