In 3.1.0 list of changed files:
/dl.php
/system/stream.php
/system/config.php
/system/classes/Instagram.php
/system/action.php
In 3.0.1 list of changed files:
/template/default/footer.php
/template/default/assets/js/vendor.min.js
/system/classes/Instagram.php
/system/action.php