diff --git a/CHANGES.md b/CHANGES.md
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@@ -2,6 +2,17 @@
 
 All notable changes to this project will be documented in this file.
 
+## [3.1.15] - 2017-08-11
+### Changed
+- Minor language string changes.
+- Made changes to the UI when editing a certificate.
+  - Moved the 'Add element' submit button below the list of elements.
+  - Added icon next to the 'Delete page' link.
+  - Changed the 'Add page' button to a link, added an icon and moved it's location to the right.
+  - Do not make all submit buttons primary. MDL-59740 needs to be applied to your Moodle install in order to notice the change.
+- Fixed issue where the date an activity was graded was not displaying at all.
+- Added much needed Behat test coverage.
+
 ## [3.1.14] - 2017-08-05
 ### Changed
 - Renamed the column 'size' in the table 'customcert_elements' to 'fontsize' due to 'size' being a reserved word in Oracle.