Based on the design committee, we've decided not to use 'old' classes from the includes folder in new code in the 'src' directory. Thus removing those type hints, but leaving them in the docblock to not lose the information.
1. Use '0000-00-00 00:00:00' instead of CURRENT_TIMESTAMP as default value to support MySQL 5.6
2. Return early if DB version is less than 430 because then it would mean that required wc_reserved_stock table might not be present.
Peter Fabian
Mike Jolley
vedanshujain