1 files changed, 5 insertions, 1 deletions

diff --git a/sources/core/ckeditor_base.js b/sources/core/ckeditor_base.js
index 1e90d72..8c36b11 100644
--- a/sources/core/ckeditor_base.js
+++ b/sources/core/ckeditor_base.js
@@ -1,5 +1,5 @@
 /**
- * @license Copyright (c) 2003-2016, CKSource - Frederico Knabben. All rights reserved.
+ * @license Copyright (c) 2003-2017, CKSource - Frederico Knabben. All rights reserved.
  * For licensing, see LICENSE.md or http://ckeditor.com/license
  */
 
@@ -33,6 +33,10 @@ if ( !window.CKEDITOR ) {
                          * by the editor code, guaranteeing clean cache results when
                          * upgrading.
                          *
+                         * **Note:** There is [a known issue where "icons.png" does not include
+                         * timestamp](http://dev.ckeditor.com/ticket/10685) and might get cached.
+                         * We are working on having it fixed.
+                         *
                          *              alert( CKEDITOR.timestamp ); // e.g. '87dm'
                          */
                         timestamp: '',                          // %REMOVE_LINE%