Upgrade to v5
Sequelize v5 is the next major release after v4
Breaking Changes
Support for Node 6 and up
Sequelize v5 will only support Node 6 and up #9015
DEV: Done, no deprecation
Secure Operators
With v4 you started to get a deprecation warning String based operators are now deprecated. Also concept of operators was introduced. These operators are Symbols which prevent hash injection attacks.
Please check these threads to know more
- (Issue) https://github.com/sequelize/sequelize/issues/7310
- (Fix) https://github.com/sequelize/sequelize/pull/8240
- (Explanation) https://github.com/sequelize/sequelize/issues/8417#issuecomment-334056048
- (Official Docs) http://docs.sequelizejs.com/manual/tutorial/querying.html#operators-security
With v5
- Operators are now enabled by default.
- You can still use string operators by passing an operators map in
operatorsAliases - Op.$raw is removed
DEV: Incomplete, deprecated
Model
Attributes
Model.attributes now removed, use Model.rawAttributes. #5320
Note: Please dont confuse this with options.attributes, they are still valid
DEV: Done, no deprecation
Paranoid Mode
With v5 if deletedAt is set, record will be considered as deleted. So paranoid option will only use deletedAt as flag.
In v4 it used to compare current time with deletedAt. #8496
DEV: Done, no deprecation