Update CHANGELOG

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CHANGELOG

@@ -36,6 +36,9 @@ v 8.5.0 (unreleased)
   - Hide remove source branch button when the MR is merged but new commits are pushed (Zeger-Jan van de Weg)
   - In seach autocomplete show only groups and projects you are member of
+v 8.4.4
+  - Update omniauth-saml gem to 1.4.2
+
 v 8.4.3
   - Increase lfs_objects size column to 8-byte integer to allow files larger
     than 2.1GB