diff --git a/editions/tw5.com/tiddlers/releasenotes/Release 5.1.9.tid b/editions/tw5.com/tiddlers/releasenotes/Release 5.1.9.tid
index 6ba5fb374..ebc0f62f7 100644
--- a/editions/tw5.com/tiddlers/releasenotes/Release 5.1.9.tid	
+++ b/editions/tw5.com/tiddlers/releasenotes/Release 5.1.9.tid	
@@ -130,6 +130,7 @@ Try it out
 * [[Improved|https://github.com/Jermolene/TiddlyWiki5/commit/d8366cc45f25d16c9085e05ee18965e626e218ff]] CodeMirror plugin to automatically refresh when a tiddler type changes
 * [[Added|https://github.com/Jermolene/TiddlyWiki5/commit/0d5033e2a00e34a7665c2cff58c0d15da224dd2b]] new setting in $:/ControlPanel to render tiddler titles as links, which can be convenient for drag and drop
 * [[Simplified|https://github.com/Jermolene/TiddlyWiki5/commit/f42842f80104e8e892545c758ea0b997cacbdd31]] detecting the preview pane with the [[tv-tiddler-preview Variable]]
+* [[Improved|https://github.com/Jermolene/TiddlyWiki5/commit/50c6ce8b73aef692920d7a03b1c9c46c35f972d6]] automatic linking of system tiddler titles by restricting them to letters and the characters `/.-`
 
 !! Bug Fixes