hs code was dropped in 12.0 however it shouldn't have been (commit 2d738f8563). commit 498dbc548b created a new module in order to avoid losing hscode for existing database during migration.
This commit set it back as before.
closesodoo/odoo#29167
HS Code is a standardized code used to describe products categories, and
facilitate customs clearance.
(https://en.wikipedia.org/wiki/Harmonized_System)
Some international transporters require HS codes and use them. We allow
users to store them on product.template's.
* migration to new API
* removed delivery.grid object, has been merged with delivery.carrier
* change view of delivery.carrier (price rules, etc.)
* tests from yml to py
* website : restrict the list of countries for delivery address in the shop