There are acual problems too, when switching from utf8mb3 to utf8mb4, because of maximum varchar length in indices: https://stackoverflow.com/questions/48500355

There are acual problems too, when switching from utf8mb3 to utf8mb4, because of maximum varchar length in indices: https://stackoverflow.com/questions/48500355/mysql-character-set-utf8mb4-varchar-length https://stackoverflow.com/questions/48500355/mysql-character...