Up to now, it was possible to add addresses to customers and suppliers but they had a fixed meaning. For customers, the addresses are treated as delivery addresses while for suppliers, the addresses are locations for stores or with a similar meaning.
Now, the customer and supplier address tables contains a new "type" column that can contain any string to distinguish the different addresses stored there. This is especially useful in heavily customized setups which includes non-standard use cases, e.g. for complex B2B applications and marketplaces.