| ⇢ | A | Redirect added |
| ⇢ | C | Subscribe::handlePostData() added | |
| ⇢ | B | Redirect::preProcess() added | |
| ⇢ | A | Redirect::redirect() added | |
| ⇢ | A | ActionException::displayToUser() added | |
| B | ↗ | A | ActionRouter::transitionAction() improved |
| B | ↘ | C | Subscribe::handleSubscribeData() got worse |
| D | ↛ | actions.php ➔ subscription_handle_post() removed | |
| A | ↛ | actions.php ➔ act_redirect() removed | |
| A | ↛ | actions.php ➔ act_redirect_execute() removed |