diff --git a/History.markdown b/History.markdown
index 9e1b0534..f8fbb68d 100644
--- a/History.markdown
+++ b/History.markdown
@@ -56,6 +56,7 @@
   * Fix docs/templates.md private gist example (#1477)
   * Use `site.repository` for Jekyll's GitHub URL (#1463)
   * Add `jekyll-pageless-redirects` to list of third-party plugins (#1486)
+  * Clarify that `date_to_xmlschema` returns an ISO 8601 string (#1488)
 
 ## v1.1.2 / 2013-07-25