Add changelog

Author: LowLevel

docs/CHANGELOG.md

@@ -39,6 +39,9 @@ nav_order: 6
 * Declare `actionview` as a `view_component` gem dependency.
 
     *Michal Cichra*
+* Add test documenting current behavior for resolving relative translation keys in partial blocks. The test expects translation keys to resolve relative to the caller's path, but currently they resolve relative to the partial's path, which is incorrect.
+
+    *Oussama Hilal*
 
 ## 4.0.2