diff --git a/History.markdown b/History.markdown
index 2dca27a5..89280099 100644
--- a/History.markdown
+++ b/History.markdown
@@ -3,6 +3,7 @@
 ### Major Enhancements
 
   * Incremental regeneration (#3116)
+  * Drop support for Ruby 1.9.3. (#3235)
 
 ### Minor Enhancements