Missed changelog entry.

CHANGES.md

@@ -3,6 +3,7 @@ CKEditor 4 Changelog
 
 ## CKEditor 4.2.1
 
+* [#10662](http://dev.ckeditor.com/ticket/10662): Fixed styles from Styles drop-down list not registered to the ACF in case when [Shared Spaces plugin](http://ckeditor.com/addon/sharedspace) is used.
 * [#9654](http://dev.ckeditor.com/ticket/9654): Problems with IE10 Quirks mode.
 * [#9816](http://dev.ckeditor.com/ticket/9816): Floating toolbar does not reposition vertically in several cases.
 * [#10646](http://dev.ckeditor.com/ticket/10646): Removing selected sub-list or nested table with *Backspace/Delete* removes parent element.