text: SET @OLD_UNIQUE_CHECKS=@@UNIQUE_CHECKS, UNIQUE_CHECKS=0;
  SET @OLD_FOREIGN_KEY_CHECKS=@@FOREIGN_KEY_CHECKS, FOREIGN_KEY_CHECKS=0;
  SET @OLD_SQL_MODE=@@SQL_MODE, SQL_MODE='TRADITIONAL,ALLOW_INVALID_DATES';
  
  ALTER TABLE `configurations` 
  CHANGE COLUMN `smtpSecure` `smtpSecure` VARCHAR(255) NULL DEFAULT NULL COMMENT '\'ssl\'; // secure transfer enabled REQUIRED for Gmail' ,
  CHANGE COLUMN `smtpHost` `smtpHost` VARCHAR(255) NULL DEFAULT NULL COMMENT '\"smtp.gmail.com\"' ,
  CHANGE COLUMN `smtpUsername` `smtpUsername` VARCHAR(255) NULL DEFAULT NULL COMMENT '\"email@gmail.com\"' ,
  CHANGE COLUMN `smtpPassword` `smtpPassword` VARCHAR(255) NULL DEFAULT NULL ,
  CHANGE COLUMN `encoderURL` `encoderURL` VARCHAR(255) NULL DEFAULT NULL ;
  
  SET SQL_MODE=@OLD_SQL_MODE;
  SET FOREIGN_KEY_CHECKS=@OLD_FOREIGN_KEY_CHECKS;
  SET UNIQUE_CHECKS=@OLD_UNIQUE_CHECKS;
  
  UPDATE configurations SET  version = '4.9', modified = now() WHERE id = 1;