diff --git a/History.markdown b/History.markdown
index 205c23e08..d4eedda89 100644
--- a/History.markdown
+++ b/History.markdown
@@ -14,6 +14,7 @@
   * Performance optimizations (#2994)
   * Use `Hash#each_key` instead of `Hash#keys.each` to speed up iteration
     over hash keys. (#3017)
+  * Further minor performance enhancements. (#3022)
 
 ### Bug Fixes