| C | ↘ | D | midcom_helper_head got worse |
| A | ↛ | org_openpsa_mail_backend_mail removed |
| ⇢ | A | midcom_helper_head::prepare_stylesheet_attributes(... added | |
| ⇢ | A | midcom_helper_head::prepend_stylesheet() added | |
| A | ↛ | org_openpsa_mail_backend_mail::__construct() removed | |
| A | ↛ | org_openpsa_mail_backend_mail::mail() removed |