CHANGELOG.md in strong_migrations-0.4.1 vs CHANGELOG.md in strong_migrations-0.4.2

@@ -1,4 +1,8 @@
+## 0.4.2
+
+- Allow `add_reference` with concurrent indexes
+
 ## 0.4.1
 
 - Added `target_postgresql_version`
 - Added `unscoped` to backfill instructions