diff --git a/History.markdown b/History.markdown
index 0992491a..d995f2fc 100644
--- a/History.markdown
+++ b/History.markdown
@@ -22,6 +22,7 @@
   * Only downcase mixed-case categories for the URL (#2571)
   * Added per post `excerpt_separator` functionality (#3274)
   * Allow collections YAML to end with three dots (#3134)
+  * Add mode parameter to `slugify` Liquid filter (#2918)
 
 ### Bug Fixes