The Polkadot ecosystem has launched the new Polkadot Ledger app, which was proposed, supported and funded by the Polkadot community. The new Polkadot Ledger app will enable users to interact with Polkadot and all its parallel chains in one app. It is reported that the app will be available on Ledger Live on all Ledger devices on July 1, 2024. At the time of launch, Polkadot, Kusama and all system chains have been fully integrated. Parallel chains will be integrated one after another.