Release 0.78.1

Added

• Swift: Expose getRandomBytes.

Changed

• Security: Wipe credentials, keys, seeds and other sensitive data from memory once they are no longer needed.
• Singlesig: Lower the Bitcoin default min fee rate to 0.1 sat/vB.
• Multisig: Take the value and asset of explicit Liquid UTXOs from the transaction instead of the server.
• Multisig: Check that the PIN password returned by the server is at least 36 characters.
• Signing: Validate user sighash flags before signing with any signer, including hardware signers.
• Signing: (Liquid) Only allow SIGHASH_SINGLE|ANYONECANPAY on LiquiDEX maker proposals (1 input, 1 output paying the wallet).
• Transactions: Report out-of-range output indices as user errors.
• LiquiDEX: Verify the maker input against the previous output it spends when validating a proposal.
• Python: Drop Python 2 API uses removed in SWIG 4.5.
• Dependencies: Update wally, websocketpp and autobahn-cpp.
• Dependencies: Update Rust dependencies electrum-client to 0.24.2, tokio to 1.54.1, rustls, rustls-webpki and webpki-roots.

Fixed

• Singlesig: Fix Electrum TLS connections failing when several sessions connect at the same time.
• Singlesig: Re-subscribe scripts in one batched request after reconnecting to the Electrum server, instead of one request per script.
• Transactions: Round up the RBF replacement bandwidth fee as Bitcoin Core does.
• Wamp: fix a use-after-free by stopping the shared io_context before destroying websocketpp clients