| ⇢ | B | Installer::initialize_system_config() added | |
| ⇢ | B | Installer::initialize_core_config() added | |
| ⇢ | A | Installer::create_root_administrator() added | |
| ⇢ | A | Installer::initialize_db_structure() added | |
| A | ↘ | B | Installer::install() got worse |
| F | ↗ | D | functions.php ➔ install_process() improved |