diff --git a/History.markdown b/History.markdown
index 209b96e7..50b4845b 100644
--- a/History.markdown
+++ b/History.markdown
@@ -105,6 +105,7 @@
   * Reduce allocations from Jekyll::Document instances (#7625)
   * Add `type` attribute to Document instances (#7406)
   * Reduce allocations from where-filter (#7653)
+  * Memoize SiteDrop#documents to reduce allocations (#7697)
 
 ### Development Fixes