v3.12.0

The detailed description is available here: https://ejudge.ru/wiki/index.php/%D0%98%D0%B7%D0%BC%D0%B5%D0%BD%D0%B5%D0%BD%D0%B8%D1%8F_%D0%B2_%D0%B2%D0%B5%D1%80%D1%81%D0%B8%D0%B8_3.12.0