-[FIXED] Add quotes around column names for unique constraints in sqlite [#4407](https://github.com/sequelize/sequelize/pull/4407)
-[FIXED] Add quotes around column names for unique constraints in sqlite [#4407](https://github.com/sequelize/sequelize/pull/4407)
-[FIXED] Connection error when fetching OIDs for unspported types in Postgres 8.2 or below [POSTGRES][#5254](https://github.com/sequelize/sequelize/issues/5254)
-[FIXED] Connection error when fetching OIDs for unspported types in Postgres 8.2 or below [POSTGRES][#5254](https://github.com/sequelize/sequelize/issues/5254)
-[FIXED] Expose OptimisticLockError on Sequelize object [#7291](https://github.com/sequelize/sequelize/pull/7291)
-[FIXED] Expose OptimisticLockError on Sequelize object [#7291](https://github.com/sequelize/sequelize/pull/7291)
-[FIXED] Deleted paranoid records can be queried in the same second. [#7204](https://github.com/sequelize/sequelize/issues/7204)/[#7332](https://github.com/sequelize/sequelize/pull/7332)
## BC breaks:
## BC breaks:
-`DATEONLY` now returns string in `YYYY-MM-DD` format rather than `Date` type
-`DATEONLY` now returns string in `YYYY-MM-DD` format rather than `Date` type