| ⇢ | A | Requirement_Proc_Open added | |
| A | ↛ | Requirement_PHP_User removed | |
| A | ↛ | Requirement_PHP_Group removed | |
| A | ↛ | Requirement_Exec removed |
| ⇢ | A | Site_Size::get_cached_filesizes() added | |
| ⇢ | A | Requirement_Proc_Open::test() added | |
| B | ↛ | Backup_Utilities::is_exec_available() removed | |
| A | ↛ | Mysqldump_Database_Backup_Engine::ignore_mysql_pas... removed | |
| A | ↛ | Backup_Utilities::is_function_disabled() removed | |
| A | ↛ | Requirement_PHP_User::test() removed | |
| A | ↛ | Requirement_PHP_Group::test() removed | |
| A | ↛ | Requirement_Exec::test() removed |