Bitpay is a service provider for processing payments and invoices through blockchain. Currently, the only available cryptocurrency to do that is Bitcoin, but the company announced the addition of Bitcoin Cash blockchain. Customers will have the option to use not only Bitcoin for their purchases but also Bitcoin Cash and, coming soon, other types of cryptocurrency.
On their website, the Bitpay says that from now on they will be notifying users way in advance about the addition of new blockchains to the payment system, so the businesses will be able to opt out of enforcing some fixed payment method and customers will be able to use less-congested chains to transfer funds faster. If, however, the users want to rely on single chain to stay safe from possible price swings, than they will be able arrange to fix their transactions to a single cryptocurrency.
Also, the Bitpay team announced that the adoption of new blockchains will depend on key usability factors, such as the network hashing power, security, usefulness in payments and market value.