diff --git a/CHANGELOG.md b/CHANGELOG.md
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--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,10 @@
 # Changelog
 
 ## 0.6.x
-### 0.6.5-a
+### 0.6.5 / -a
 - No breaking changes to backward compatibility yet.
 - Updated the `process` function: an image can now be returned in a modified form without saving. It is returned as a Qt image, which is required for the new UI functionality.
+- No change from alpha to *stable*
 
 ### 0.6.4
 - Released a stable-ish version to ensure compatibility with the current GUI in OptimaLab35 (v0.1.0).