diff --git a/CHANGELOG.txt b/CHANGELOG.txt
index d311993f85db33dbfc09a53463c91273b3a374d2..fb972df85da8ab5f116d2be6d16c7048eebd06a2 100644
--- a/CHANGELOG.txt
+++ b/CHANGELOG.txt
@@ -11,6 +11,9 @@ Drupal 7.51, xxxx-xx-xx (development version)
 - If a user navigates away from a page while an AJAX request is running they
   will no longer get an error message saying "An AJAX HTTP request terminated
   abnormally"
+- The system_region_list() API function now takes an optional third parameter
+  which allows region name translations to be skipped when they are not needed
+  (API addition: https://www.drupal.org/node/2810365).
 - Numerous performance improvements.
 - Numerous small bugfixes.
 - Numerous API documentation improvements.