You may have seen this deprecation warning printed by Notes:
sequelize deprecated String based operators are now deprecated. Please use Symbol based operators for better security, read more at http://docs.sequelizejs.com/manual/tutorial/querying.html#operators
Nowhere in Notes are we using Sequelize string-based operators, and therefore this would seem to be a spurious error message. In actuality, it is a real issue with potential similar to an SQL injection attack.
This issue queue entry has an in-depth discussion of the security problem: https://github.com/sequelize/sequelize/issues/8417 with more details in the documentation at http://docs.sequelizejs.com/manual/tutorial/querying.html#operators-security ...
