fix attribution

CHANGELOG.md

@@ -5,15 +5,14 @@ a nice looking [Changelog](http://keepachangelog.com).
 
 ## Version [HEAD] <sub><sup>now</sub></sup>
 
-## Version [4.0.0] <sub><sup>2021-04-02</sub></sup>
+## Version [4.0.0] <sub><sup>2021-04-12</sub></sup>
 
 * dropped support for rails 4.2 and 5.0 (thx @d-m-u)
 * better documentation counter cache option (thx @pustomytnyk)
 * clean up code (thx @amatsuda @d-m-u)
-* fixed rails scoping deprecation warnings (thx @cmr119)
+* fixed rails 6.1 support (thx @cmr119 @d-staehler @danini-the-panini )
 * phasing out `parent_id?`, `ancestors?` and using `has_parent?` instead
-* fix postgres order bug on rails 6.2 and higher (thx @smoyth @danini-the-panini)
-
+* fixed postgres order bug on rails 6.2 and higher (thx @smoyt)
 
 ## Version [3.2.1] <sub><sup>2020-09-23</sub></sup>