Moving towards Invenio 3.0 production packages requires taking care of package upgrades regarding DB structure and DB data. We'll discuss the new Alembic techniques on how to write and use package upgrade recipes.

Examples:

• https://github.com/inveniosoftware/invenio-db/pull/59

Must-Read:

• http://docs.sqlalchemy.org/en/latest/core/constraints.html#configuring-constraint-naming-conventions (see https://github.com/inveniosoftware/invenio-db/issues/62)