diff --git a/CHANGELOG.md b/CHANGELOG.md
index a1aecfe92..d29efd05d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,3 +9,13 @@ Version 1.5.1
 - remove inexistant `person.css` file
 - fix bug in accompanying person validation
 
+Branch `Similarity`
+==================
+
+- Add an column with fullname canonical (lowercase and unaccent) to persons entity ;
+- Add a trigram index on fullname canonical ;
+- Add a "similar person matcher", which allow to detect person with similar names when adding a person ;
+- Add a research of persons by fuzzy name, returning result with a similarity of 0.15 ;
+
+Thanks to @matla :-)
+