The interbank payment protocol and messaging system SWIFT has announced the end of the first phase of testing on CBDC interoperability, with participants handling transactions between the Quorum and Corda blockchain networks as well as between Corda and fiat currencies during the 12-week collaborative testing period 4736 transactions between. In the coming months, a beta version of the payment solution will be developed for further testing by the central bank. A second phase of sandbox testing will also be held, focusing on new use cases including securities settlement (such as cross-asset transactions), trade finance and conditional payments.