Эта версия исправляет ошибки найденные в предыдущей версии.
С версии 8.2.3, ядро больше не содержит dev-версии библиотек, так как они могут являться нестабильными и не предназначены для использования на основных сайтах.
/**
* Load services definition file.
*/
$settings['container_yamls'][] = __DIR__ . '/services.yml';
Заменено на:
/**
* Load services definition file.
*/
$settings['container_yamls'][] = $app_root . '/' . $site_path . '/services.yml';
/**
* Load local development override configuration, if available.
*
* Use settings.local.php to override variables on secondary (staging,
* development, etc) installations of this site. Typically used to disable
* caching, JavaScript/CSS compression, re-routing of outgoing emails, and
* other things that should not happen on development and testing sites.
*
* Keep this code block at the end of this file to take full effect.
*/
# if (file_exists(__DIR__ . '/settings.local.php')) {
# include __DIR__ . '/settings.local.php';
# }
Заменено на:
/**
* Load local development override configuration, if available.
*
* Use settings.local.php to override variables on secondary (staging,
* development, etc) installations of this site. Typically used to disable
* caching, JavaScript/CSS compression, re-routing of outgoing emails, and
* other things that should not happen on development and testing sites.
*
* Keep this code block at the end of this file to take full effect.
*/
#
# if (file_exists($app_root . '/' . $site_path . '/settings.local.php')) {
# include $app_root . '/' . $site_path . '/settings.local.php';
# }
Пошаговое описание обновления системы до новой версии смотрите в документации.