# Paypal Transaction Migration Guide ## Upgrading to 2.1.0 Version 2.1.0 changes the format of the state object. Upgrading to 2.1.0 is safe, but downgrading to 2.0.0 is not. To downgrade to 2.0.0: - Edit your connection state: - Change the keys for the transactions and balances streams to "date" - Change the format of the cursor to "yyyy-MM-dd'T'HH:mm:ss+00:00" Alternatively, you can also reset your connection.