diff --git a/editions/prerelease/tiddlers/Release 5.1.10.tid b/editions/prerelease/tiddlers/Release 5.1.10.tid
index acddd6edf..6740969cb 100644
--- a/editions/prerelease/tiddlers/Release 5.1.10.tid	
+++ b/editions/prerelease/tiddlers/Release 5.1.10.tid	
@@ -37,6 +37,7 @@ The new [[Text-Slicer Edition]] is a custom edition with tools to help advanced
 
 !! Usability Improvements
 
+* [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/5d43cd740863be188e43fd49893dc8dddcd5b937]] new "fold" button for the tiddler toolbar to temporarily hide the body of a tiddler
 * [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/d5e690a06d523a2047eaf9b623b633bb72c18af9]] ability to disable individual WikiText parser rules (see the ''Advanced'' tab of $:/ControlPanel). Also [[added|https://github.com/Jermolene/TiddlyWiki5/commit/58188cf8053bef87dbe97e4b05cdba67f75c615d]] a simple setting for disabling automatic linking of ~CamelCase words
 * [[Extended|https://github.com/Jermolene/TiddlyWiki5/commit/2cb6400773096b02b71c1851fb0fac5dfefbbd6f]] support for automatically linked system tiddler titles to include digits and underscore