We had planned to start operating the new judge system from AtCoder Beginner Contest 428 on October 18, 2025. However, some operational issues have been identified, and until those issues are resolved, we will continue to use the current judge system. Accordingly, the previously announced updates — including the list of available languages and libraries, and the new TLE/MLE display formats — will not be applied at this time. Once the issues are resolved and the new environment is ready, we will announce a new date for the transition. Thank you for your understanding. ■Related Information [Launch of the New Judge System](https://atcoder.jp/posts/1580)