diff --git a/src/Symfony/Component/Locale/CHANGELOG.md b/src/Symfony/Component/Locale/CHANGELOG.md
index 1a05b2f48b..da55a26728 100644
--- a/src/Symfony/Component/Locale/CHANGELOG.md
+++ b/src/Symfony/Component/Locale/CHANGELOG.md
@@ -4,4 +4,6 @@ CHANGELOG
 2.1.0
 -----
 
- * added Locale::getIcuVersion() and Locale::getIcuDataVersion()
+ * added Locale::getIntlIcuVersion(), Locale::getIntlIcuDataVersion(), Locale::getIcuDataVersion() and Locale::getIcuDataDirectory()
+ * renamed update-data.php to build-data.php, the script usage changed, now it is easier to update the ICU data
+ * updated the ICU data to the release 49.1.2