4 * Activate forums database drop
11 * table_prefix deprecated
18 * authentication must use account + account_types with weakpass.
19 * forums base dropped and moved to forum_ namespace.
23 * auth_user_md5.smtppass -> accounts.weak_password. This password is NULL when empty, but a check must be added for empty passwords.
24 * auth_user_md5.mail_storage -> email_options.storage