Bitcoin Core v32.0rc1 changes several default wallet and RPC behaviors ahead of a targeted Oct. 10 final release. The biggest compatibility risk is PSBTv2 becoming the default for four RPCs, which could temporarily break wallets, signers or services that still expect older transaction formats. https://cryptoslate.com/a-major-bitcoin-core-update-changes-default-wallet-protocols-risking-temporary-disruption-across-popular-apps/