The current contract with Cubic for the existing Clipper system expired in 2019, and the system architecture dates from the 1990s. These factors led the MTC to start developing a next generation system that is planned to begin operation in 2021. The new system will include a mobile app, expected in 2021, that will enable mobile ticketing on the Clipper system. The new system may additionally integrate with additional electronic payment systems such as digital wallets. In February 2021, Apple announced a partnership with Clipper that it will soon be supported by Express Transit in Apple Pay.