Updating Bitcoin and BDK crates (#10)

* Update `ark-lib` to latest `bitcoin` crate * Updated Arkd and Noah to latest `bdk_wallet` * Fixed linting issues
2025-12-17 05:04:21 +01:00 · 2024-07-22 02:58:25 -06:00
parent 92cb3b15bb
commit b97fb826e9
21 changed files with 275 additions and 223 deletions
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -23,18 +23,19 @@ serde_json = "1"
 ciborium = "0.2.1"

 # bitcoin stack
-bitcoin = { version = "0.30", features = [ "serde", "rand", "rand-std" ] }
+bitcoin = { version = "0.32", features = [ "serde", "rand", "rand-std" ] }
 bip39 = { version = "2.0.0", features = [ "rand", "serde" ] }
 miniscript = "10.0"
 rand = { version = "0.8.5", features = [ "std", "std_rng" ] }
-# bdk = "1.0.0-alpha.3"
-# bdk_electrum = "0.5.0"
-# bdk_file_store = "0.3.0"
-# bdk_bitcoind_rpc = "0.2.0"
-bdk = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
-bdk_esplora = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
-bdk_file_store = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
-bdk_bitcoind_rpc = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
+# bdk = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
+# bdk_esplora = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
+# bdk_file_store = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
+# bdk_bitcoind_rpc = { git = "https://github.com/stevenroose/bdk.git", rev = "67602f5b33ea82775d94a28df9f3f66d2ca9aa19" }
+# bdk = "0.29.0"
+bdk_wallet = "=1.0.0-alpha.13"
+bdk_esplora = "0.15.0"
+bdk_file_store = "0.13.0"
+bdk_bitcoind_rpc = "0.12.0"

 sled = "0.34.7"

--- a/ark-lib/src/connectors.rs
+++ b/ark-lib/src/connectors.rs
@@ -6,11 +6,11 @@ use bitcoin::{
 	Address, Amount, Network, OutPoint, Script, ScriptBuf, Sequence, Transaction, TxIn, TxOut,
 	Witness,
 };
-use bitcoin::secp256k1::{KeyPair, PublicKey};
+use bitcoin::secp256k1::{Keypair, PublicKey};
 use bitcoin::sighash::{self, SighashCache, TapSighashType};

 use crate::{fee, util};
-use crate::util::KeyPairExt;
+use crate::util::KeypairExt;


 /// The size in vbytes of each connector tx.
@@ -51,7 +51,7 @@ impl ConnectorChain {

 	/// Create the scriptPubkey to create a connector chain using the given publick key.
 	pub fn output_script(pubkey: PublicKey) -> ScriptBuf {
-		ScriptBuf::new_v1_p2tr(&util::SECP, pubkey.x_only_public_key().0, None)
+		ScriptBuf::new_p2tr(&util::SECP, pubkey.x_only_public_key().0, None)
 	}

 	/// Create the address to create a connector chain using the given publick key.
@@ -63,7 +63,7 @@ impl ConnectorChain {
 	pub fn output(len: usize, pubkey: PublicKey) -> TxOut {
 		TxOut {
 			script_pubkey: Self::output_script(pubkey),
-			value: Self::required_budget(len).to_sat(),
+			value: Self::required_budget(len),
 		}
 	}

@@ -85,7 +85,7 @@ impl ConnectorChain {
 	}

 	/// Iterator over the signed transactions in this chain.
-	pub fn iter_signed_txs<'a>(&'a self, sign_key: &'a KeyPair) -> ConnectorTxIter<'a> {
+	pub fn iter_signed_txs<'a>(&'a self, sign_key: &'a Keypair) -> ConnectorTxIter<'a> {
 		ConnectorTxIter {
 			len: self.len,
 			spk: &self.spk,
@@ -118,7 +118,7 @@ impl ConnectorChain {
 pub struct ConnectorTxIter<'a> {
 	len: usize,
 	spk: &'a Script,
-	sign_key: Option<KeyPair>,
+	sign_key: Option<Keypair>,

 	prev: OutPoint,
 	idx: usize,
@@ -133,7 +133,7 @@ impl<'a> iter::Iterator for ConnectorTxIter<'a> {
 		}

 		let mut ret = Transaction {
-			version: 2,
+			version: bitcoin::transaction::Version::TWO,
 			lock_time: bitcoin::absolute::LockTime::ZERO,
 			input: vec![TxIn {
 				previous_output: self.prev,
@@ -144,11 +144,11 @@ impl<'a> iter::Iterator for ConnectorTxIter<'a> {
 			output: vec![
 				TxOut {
 					script_pubkey: self.spk.to_owned(),
-					value: ConnectorChain::required_budget(self.len - self.idx - 1).to_sat(),
+					value: ConnectorChain::required_budget(self.len - self.idx - 1),
 				},
 				TxOut {
 					script_pubkey: self.spk.to_owned(),
-					value: fee::DUST.to_sat(),
+					value: fee::DUST,
 				},
 			],
 		};
@@ -156,7 +156,7 @@ impl<'a> iter::Iterator for ConnectorTxIter<'a> {
 		if let Some(keypair) = self.sign_key {
 			let prevout = TxOut {
 				script_pubkey: self.spk.to_owned(),
-				value: ConnectorChain::required_budget(self.len - self.idx).to_sat(),
+				value: ConnectorChain::required_budget(self.len - self.idx),
 			};
 			let mut shc = SighashCache::new(&ret);
 			let sighash = shc.taproot_key_spend_signature_hash(
@@ -167,7 +167,7 @@ impl<'a> iter::Iterator for ConnectorTxIter<'a> {
 		}

 		self.idx += 1;
-		self.prev = OutPoint::new(ret.txid(), 0);
+		self.prev = OutPoint::new(ret.compute_txid(), 0);
 		Some(ret)
 	}

@@ -191,7 +191,7 @@ impl<'a> iter::Iterator for ConnectorIter<'a> {
 		}

 		if let Some(tx) = self.txs.next() {
-			let txid = tx.txid();
+			let txid = tx.compute_txid();
 			self.maybe_last = Some(OutPoint::new(txid, 0));
 			Some(OutPoint::new(txid, 1))
 		} else {
@@ -217,7 +217,7 @@ mod test {

 	#[test]
 	fn test_budget() {
-		let key = KeyPair::new(&util::SECP, &mut rand::thread_rng());
+		let key = Keypair::new(&util::SECP, &mut rand::thread_rng());
 		let utxo = OutPoint::new(Txid::all_zeros(), 0);

 		let chain = ConnectorChain::new(1, utxo, key.public_key());
@@ -238,27 +238,27 @@ mod test {
 		assert_eq!(chain.iter_signed_txs(&key).count(), 99);
 		for tx in chain.iter_signed_txs(&key) {
 			assert_eq!(tx.vsize() as u64, TX_SIZE);
-			assert_eq!(tx.input[0].witness.serialized_len(), INPUT_WEIGHT);
+			assert_eq!(tx.input[0].witness.size(), INPUT_WEIGHT);
 		}
 		let size = chain.iter_signed_txs(&key).map(|t| t.vsize() as u64).sum::<u64>();
 		assert_eq!(size, ConnectorChain::total_vsize(100));
-		chain.iter_unsigned_txs().for_each(|t| assert_eq!(t.output[1].value, fee::DUST.to_sat()));
-		assert_eq!(fee::DUST.to_sat(), chain.iter_unsigned_txs().last().unwrap().output[0].value);
+		chain.iter_unsigned_txs().for_each(|t| assert_eq!(t.output[1].value, fee::DUST));
+		assert_eq!(fee::DUST, chain.iter_unsigned_txs().last().unwrap().output[0].value);

-		let total_value = chain.iter_unsigned_txs().map(|t| t.output[1].value).sum::<u64>()
+		let total_value = chain.iter_unsigned_txs().map(|t| t.output[1].value).sum::<Amount>()
 			+ chain.iter_unsigned_txs().last().unwrap().output[0].value
-			+ size;
-		assert_eq!(ConnectorChain::required_budget(100).to_sat(), total_value);
+			+ Amount::from_sat(size);
+		assert_eq!(ConnectorChain::required_budget(100), total_value);

 		// random checks
 		let mut txs = chain.iter_unsigned_txs();
-		assert_eq!(txs.next().unwrap().output[0].value, ConnectorChain::required_budget(99).to_sat());
-		assert_eq!(txs.next().unwrap().output[0].value, ConnectorChain::required_budget(98).to_sat());
+		assert_eq!(txs.next().unwrap().output[0].value, ConnectorChain::required_budget(99));
+		assert_eq!(txs.next().unwrap().output[0].value, ConnectorChain::required_budget(98));
 	}

 	#[test]
 	fn test_signatures() {
-		let key = KeyPair::new(&util::SECP, &mut rand::thread_rng());
+		let key = Keypair::new(&util::SECP, &mut rand::thread_rng());
 		let utxo = OutPoint::new(Txid::all_zeros(), 0);
 		let spk = ConnectorChain::output_script(key.public_key());

--- a/ark-lib/src/fee.rs
+++ b/ark-lib/src/fee.rs
@@ -18,9 +18,9 @@ pub fn op_true_script() -> ScriptBuf {
 pub fn dust_anchor() -> TxOut {
 	TxOut {
 		script_pubkey: {
-			ScriptBuf::new_v0_p2wsh(&op_true_script().wscript_hash())
+			ScriptBuf::new_p2wsh(&op_true_script().wscript_hash())
 		},
-		value: DUST.to_sat(),
+		value: DUST,
 	}
 }

--- a/ark-lib/src/forfeit.rs
+++ b/ark-lib/src/forfeit.rs
@@ -1,6 +1,6 @@


-use bitcoin::{OutPoint, ScriptBuf, Sequence, Transaction, TxIn, TxOut, Witness};
+use bitcoin::{Amount, OutPoint, ScriptBuf, Sequence, Transaction, TxIn, TxOut, Witness};
 use bitcoin::sighash::{self, SighashCache, TapSighash, TapSighashType};

 use crate::{fee, util, Vtxo};
@@ -12,7 +12,7 @@ pub const SIGNED_FORFEIT_TX_VSIZE: u64 = 0;

 pub fn create_forfeit_tx(vtxo: &Vtxo, connector: OutPoint) -> Transaction {
 	// NB we gain the dust from the connector and lose the dust from the fee anchor
-	let leftover = vtxo.amount().to_sat() - SIGNED_FORFEIT_TX_VSIZE; // @ 1 sat/vb
+	let leftover = vtxo.amount() - Amount::from_sat(SIGNED_FORFEIT_TX_VSIZE); // @ 1 sat/vb
 	//TODO(stevenroose) improve this hack
 	let vtxo_fee_anchor_point = {
 		let mut point = vtxo.point();
@@ -20,7 +20,7 @@ pub fn create_forfeit_tx(vtxo: &Vtxo, connector: OutPoint) -> Transaction {
 		point
 	};
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::absolute::LockTime::ZERO,
 		input: vec![
 			TxIn {
@@ -46,7 +46,7 @@ pub fn create_forfeit_tx(vtxo: &Vtxo, connector: OutPoint) -> Transaction {
 		output: vec![
 			TxOut {
 				value: leftover,
-				script_pubkey: ScriptBuf::new_v1_p2tr(&util::SECP, vtxo.spec().combined_pubkey(), None),
+				script_pubkey: ScriptBuf::new_p2tr(&util::SECP, vtxo.spec().combined_pubkey(), None),
 			},
 			fee::dust_anchor(),
 		],
@@ -58,11 +58,11 @@ pub fn forfeit_sighash(vtxo: &Vtxo, connector: OutPoint) -> (TapSighash, Transac
 	let exit_spk = spec.exit_spk();
 	let exit_prevout = TxOut {
 		script_pubkey: exit_spk,
-		value: vtxo.amount().to_sat(),
+		value: vtxo.amount(),
 	};
 	let connector_prevout = TxOut {
 		script_pubkey: ConnectorChain::output_script(spec.asp_pubkey),
-		value: fee::DUST.to_sat(),
+		value: fee::DUST,
 	};
 	let tx = create_forfeit_tx(vtxo, connector);
 	let sighash = SighashCache::new(&tx).taproot_key_spend_signature_hash(
--- a/ark-lib/src/lib.rs
+++ b/ark-lib/src/lib.rs
@@ -73,14 +73,14 @@ impl OffboardRequest {
 			P2PKH_DUST_VB
 		} else if script.is_p2sh() {
 			P2SH_DUST_VB
-		} else if script.is_v0_p2wpkh() {
+		} else if script.is_p2wpkh() {
 			P2WPKH_DUST_VB
-		} else if script.is_v0_p2wsh() {
+		} else if script.is_p2wsh() {
 			P2WSH_DUST_VB
-		} else if script.is_v1_p2tr() {
+		} else if script.is_p2tr() {
 			P2TR_DUST_VB
 		} else if script.is_op_return() {
-			bitcoin::consensus::encode::VarInt(script.len() as u64).len() as u64
+			bitcoin::consensus::encode::VarInt(script.len() as u64).size() as u64
 				+ script.len() as u64
 				+ 8
 				// the input data (scriptSig and witness length fields included)
@@ -104,7 +104,7 @@ impl OffboardRequest {
 	pub fn to_txout(&self) -> TxOut {
 		TxOut {
 			script_pubkey: self.script_pubkey.clone(),
-			value: self.amount.to_sat(),
+			value: self.amount,
 		}
 	}

@@ -216,7 +216,7 @@ pub fn exit_spk(
 	exit_delta: u16,
 ) -> ScriptBuf {
 	let taproot = exit_taproot(user_pubkey, asp_pubkey, exit_delta);
-	ScriptBuf::new_v1_p2tr_tweaked(taproot.output_key())
+	ScriptBuf::new_p2tr_tweaked(taproot.output_key())
 }

 #[derive(Debug, Clone, PartialEq, Eq, Deserialize, Serialize)]
@@ -299,9 +299,9 @@ impl Vtxo {
 	/// This can be an on-chain utxo or an off-chain vtxo.
 	pub fn point(&self) -> OutPoint {
 		match self {
-			Vtxo::Onboard { .. } => OutPoint::new(self.vtxo_tx().txid(), 0),
+			Vtxo::Onboard { .. } => OutPoint::new(self.vtxo_tx().compute_txid(), 0),
 			Vtxo::Round { exit_branch, .. } => {
-				OutPoint::new(exit_branch.last().unwrap().txid(), 0).into()
+				OutPoint::new(exit_branch.last().unwrap().compute_txid(), 0).into()
 			},
 			Vtxo::Oor { final_point, .. } => *final_point,
 		}
@@ -320,7 +320,7 @@ impl Vtxo {
 			Vtxo::Onboard { base, .. } => base.spec.amount,
 			Vtxo::Round { base, .. } => base.spec.amount,
 			Vtxo::Oor { oor_tx, final_point, .. } => {
-				Amount::from_sat(oor_tx.output[final_point.vout as usize].value)
+				oor_tx.output[final_point.vout as usize].value
 			},
 		}
 	}
@@ -328,7 +328,7 @@ impl Vtxo {
 	pub fn txout(&self) -> TxOut {
 		TxOut {
 			script_pubkey: self.spec().exit_spk(),
-			value: self.amount().to_sat(),
+			value: self.amount(),
 		}
 	}

@@ -346,7 +346,7 @@ impl Vtxo {

 	pub fn fee_anchor(&self) -> OutPoint {
 		let tx = self.vtxo_tx();
-		OutPoint::new(tx.txid(), tx.output.len() as u32 - 1)
+		OutPoint::new(tx.compute_txid(), tx.output.len() as u32 - 1)
 	}

 	/// Splits this vtxo in a set of non-OOR vtxos and the attached OOR txs.
--- a/ark-lib/src/musig.rs
+++ b/ark-lib/src/musig.rs
@@ -4,7 +4,7 @@ pub use secp256k1_zkp::{
 	MusigAggNonce, MusigKeyAggCache, MusigPubNonce, MusigPartialSignature, MusigSecNonce,
 	MusigSession, MusigSessionId,
 };
-use bitcoin::secp256k1::{rand, schnorr, KeyPair, PublicKey, SecretKey, XOnlyPublicKey};
+use bitcoin::secp256k1::{rand, schnorr, Keypair, PublicKey, SecretKey, XOnlyPublicKey};

 use crate::util;

@@ -29,12 +29,12 @@ pub fn seckey_to(sk: SecretKey) -> zkp::SecretKey {
 	zkp::SecretKey::from_slice(&sk.secret_bytes()).unwrap()
 }

-pub fn keypair_to(kp: &KeyPair) -> zkp::Keypair {
+pub fn keypair_to(kp: &Keypair) -> zkp::Keypair {
 	zkp::Keypair::from_seckey_slice(&SECP, &kp.secret_bytes()).unwrap()
 }

-pub fn keypair_from(kp: &zkp::Keypair) -> KeyPair {
-	KeyPair::from_seckey_slice(&util::SECP, &kp.secret_bytes()).unwrap()
+pub fn keypair_from(kp: &zkp::Keypair) -> Keypair {
+	Keypair::from_seckey_slice(&util::SECP, &kp.secret_bytes()).unwrap()
 }

 pub fn sig_from(s: zkp::schnorr::Signature) -> schnorr::Signature {
@@ -61,7 +61,7 @@ pub fn combine_keys(keys: impl IntoIterator<Item = PublicKey>) -> XOnlyPublicKey
 	xonly_from(key_agg(keys).agg_pk())
 }

-pub fn nonce_pair(key: &KeyPair) -> (MusigSecNonce, MusigPubNonce) {
+pub fn nonce_pair(key: &Keypair) -> (MusigSecNonce, MusigPubNonce) {
 	let kp = keypair_to(key);
 	zkp::new_musig_nonce_pair(
 		&SECP,
@@ -81,7 +81,7 @@ pub fn nonce_agg(pub_nonces: impl IntoIterator<Item = MusigPubNonce>) -> MusigAg
 pub fn partial_sign(
 	pubkeys: impl IntoIterator<Item = PublicKey>,
 	agg_nonce: MusigAggNonce,
-	key: &KeyPair,
+	key: &Keypair,
 	sec_nonce: MusigSecNonce,
 	sighash: [u8; 32],
 	tweak: Option<[u8; 32]>,
@@ -111,7 +111,7 @@ pub fn partial_sign(
 /// Perform a deterministic partial sign for the given message and the
 /// given counterparty key and nonce.
 pub fn deterministic_partial_sign(
-	my_key: &KeyPair,
+	my_key: &Keypair,
 	their_pubkeys: impl IntoIterator<Item = PublicKey>,
 	their_nonces: impl IntoIterator<Item = MusigPubNonce>,
 	msg: [u8; 32],
--- a/ark-lib/src/napkin.rs
+++ b/ark-lib/src/napkin.rs
@@ -1,7 +1,7 @@

 use std::iter;

-use bitcoin::{Transaction, TxIn, TxOut, ScriptBuf, OutPoint, Txid, Witness, Script};
+use bitcoin::{Amount, OutPoint, Script, ScriptBuf, Transaction, TxIn, TxOut, Txid, Witness};
 use bitcoin::blockdata::opcodes;
 use bitcoin::hashes::Hash;

@@ -30,7 +30,7 @@ fn empty_input() -> TxIn {

 fn ctv_output() -> TxOut {
 	TxOut {
-		value: 0,
+		value: Amount::ZERO,
 		script_pubkey: Script::builder()
 			.push_opcode(opcodes::all::OP_NOP4)
 			.push_slice(&BYTES32)
@@ -44,7 +44,7 @@ fn ctv_input() -> TxIn {

 fn taproot_output() -> TxOut {
 	TxOut {
-		value: 0,
+		value: Amount::ZERO,
 		script_pubkey: Script::builder()
 			.push_opcode(opcodes::all::OP_PUSHNUM_1)
 			.push_slice(&BYTES32)
@@ -67,7 +67,7 @@ fn taproot_input() -> TxIn {

 fn anchor_output() -> TxOut {
 	TxOut {
-		value: 0,
+		value: Amount::ZERO,
 		script_pubkey: Script::builder()
 			.push_opcode(opcodes::OP_TRUE)
 			.into_script(),
@@ -80,7 +80,7 @@ fn anchor_input() -> TxIn {

 fn ctv_node_tx(radix: usize) -> Transaction {
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::locktime::absolute::LockTime::from_consensus(0),
 		input: vec![ctv_input()],
 		output: iter::repeat(ctv_output()).take(radix).chain(Some(anchor_output())).collect(),
@@ -89,7 +89,7 @@ fn ctv_node_tx(radix: usize) -> Transaction {

 fn ctv_leaf_tx() -> Transaction {
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::locktime::absolute::LockTime::from_consensus(0),
 		input: vec![ctv_input()],
 		output: vec![taproot_output(), anchor_output()],
@@ -98,7 +98,7 @@ fn ctv_leaf_tx() -> Transaction {

 fn clark_node_tx(radix: usize) -> Transaction {
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::locktime::absolute::LockTime::from_consensus(0),
 		input: vec![taproot_input()],
 		output: iter::repeat(taproot_output()).take(radix).chain(Some(anchor_output())).collect(),
@@ -107,7 +107,7 @@ fn clark_node_tx(radix: usize) -> Transaction {

 fn clark_leaf_tx() -> Transaction {
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::locktime::absolute::LockTime::from_consensus(0),
 		input: vec![taproot_input()],
 		output: vec![taproot_output(), anchor_output()],
@@ -137,7 +137,7 @@ fn calc_exit_cost(n: usize, radix: usize) {
 	// for exit cost the largest radix has to be taken anyway

 	let exit_tx = Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: bitcoin::locktime::absolute::LockTime::from_consensus(0),
 		input: iter::repeat(anchor_input()).take(levels).chain(Some(taproot_input())).collect(),
 		output: vec![taproot_output()],
--- a/ark-lib/src/onboard.rs
+++ b/ark-lib/src/onboard.rs
@@ -8,7 +8,7 @@
 use bitcoin::{taproot, Amount, OutPoint, Sequence, ScriptBuf, Transaction, TxIn, TxOut, Witness};
 use bitcoin::blockdata::locktime::absolute::LockTime;
 use bitcoin::hashes::Hash;
-use bitcoin::secp256k1::{schnorr, KeyPair};
+use bitcoin::secp256k1::{schnorr, Keypair};
 use bitcoin::sighash::{self, SighashCache, TapSighash};

 use crate::{fee, musig, util, BaseVtxo, Vtxo, VtxoSpec};
@@ -37,7 +37,7 @@ pub fn onboard_taptweak(spec: &VtxoSpec) -> taproot::TapTweakHash {
 }

 pub fn onboard_spk(spec: &VtxoSpec) -> ScriptBuf {
-	ScriptBuf::new_v1_p2tr_tweaked(onboard_taproot(spec).output_key())
+	ScriptBuf::new_p2tr_tweaked(onboard_taproot(spec).output_key())
 }

 /// The additional amount that needs to be sent into the onboard tx.
@@ -84,7 +84,7 @@ pub struct AspPart {
 	pub signature: musig::MusigPartialSignature,
 }

-pub fn new_asp(user: &UserPart, key: &KeyPair) -> AspPart {
+pub fn new_asp(user: &UserPart, key: &Keypair) -> AspPart {
 	let (reveal_sighash, _reveal_tx) = reveal_tx_sighash(&user.spec, user.utxo);
 	let msg = reveal_sighash.to_byte_array();
 	let tweak = onboard_taptweak(&user.spec);
@@ -103,7 +103,7 @@ pub fn create_reveal_tx(
 	signature: Option<&schnorr::Signature>,
 ) -> Transaction {
 	Transaction {
-		version: 2,
+		version: bitcoin::transaction::Version::TWO,
 		lock_time: LockTime::ZERO,
 		input: vec![TxIn {
 			previous_output: utxo,
@@ -120,7 +120,7 @@ pub fn create_reveal_tx(
 		output: vec![
 			TxOut {
 				script_pubkey: spec.exit_spk(),
-				value: spec.amount.to_sat(),
+				value: spec.amount,
 			},
 			fee::dust_anchor(),
 		],
@@ -132,7 +132,7 @@ pub fn reveal_tx_sighash(spec: &VtxoSpec, utxo: OutPoint) -> (TapSighash, Transa
 	let prev = TxOut {
 		script_pubkey: onboard_spk(&spec),
 		//TODO(stevenroose) consider storing both leaf and input values in vtxo struct
-		value: spec.amount.to_sat() + onboard_surplus().to_sat(),
+		value: spec.amount + onboard_surplus(),
 	};
 	let sighash = SighashCache::new(&reveal_tx).taproot_key_spend_signature_hash(
 		0, &sighash::Prevouts::All(&[&prev]), sighash::TapSighashType::Default,
@@ -144,7 +144,7 @@ pub fn finish(
 	user: UserPart,
 	asp: AspPart,
 	private: PrivateUserPart,
-	key: &KeyPair,
+	key: &Keypair,
 ) -> Vtxo {
 	let (reveal_sighash, _reveal_tx) = reveal_tx_sighash(&user.spec, user.utxo);
 	let agg_nonce = musig::nonce_agg([user.nonce, asp.nonce]);
@@ -193,7 +193,7 @@ mod test {
 		//! Passes through the entire flow so that all assertions
 		//! inside the code are ran at least once.

-		let key = KeyPair::new(&util::SECP, &mut rand::thread_rng());
+		let key = Keypair::new(&util::SECP, &mut rand::thread_rng());
 		let utxo = "0000000000000000000000000000000000000000000000000000000000000001:1".parse().unwrap();
 		let spec = VtxoSpec {
 			user_pubkey: key.public_key(),
--- a/ark-lib/src/oor.rs
+++ b/ark-lib/src/oor.rs
@@ -7,7 +7,7 @@ use bitcoin::{
 	Witness,
 };
 use bitcoin::hashes::Hash;
-use bitcoin::secp256k1::{schnorr, KeyPair, PublicKey};
+use bitcoin::secp256k1::{schnorr, Keypair, PublicKey};
 use bitcoin::sighash::{self, SighashCache, TapSighash, TapSighashType};

 use crate::{fee, musig, util, Vtxo, VtxoRequest, VtxoSpec};
@@ -35,7 +35,7 @@ impl OorPayment {

 	pub fn unsigned_transaction(&self) -> Transaction {
 		Transaction {
-			version: 2,
+			version: bitcoin::transaction::Version::TWO,
 			lock_time: bitcoin::absolute::LockTime::ZERO,
 			input: self.inputs.iter().map(|input| {
 				TxIn {
@@ -48,7 +48,7 @@ impl OorPayment {
 			output: self.outputs.iter().map(|output| {
 				let spk = crate::exit_spk(output.pubkey, self.asp_pubkey, self.exit_delta);
 				TxOut {
-					value: output.amount.to_sat(),
+					value: output.amount,
 					script_pubkey: spk,
 				}
 			}).chain([fee::dust_anchor()]).collect(),
@@ -56,7 +56,7 @@ impl OorPayment {
 	}

 	pub fn txid(&self) -> Txid {
-		self.unsigned_transaction().txid()
+		self.unsigned_transaction().compute_txid()
 	}

 	pub fn sighashes(&self) -> Vec<TapSighash> {
@@ -98,7 +98,7 @@ impl OorPayment {

 	pub fn sign_asp(
 		&self,
-		keypair: &KeyPair,
+		keypair: &Keypair,
 		user_nonces: &[musig::MusigPubNonce],
 	) -> (Vec<musig::MusigPubNonce>, Vec<musig::MusigPartialSignature>) {
 		assert_eq!(self.inputs.len(), user_nonces.len());
@@ -124,7 +124,7 @@ impl OorPayment {

 	pub fn sign_finalize_user(
 		self,
-		keypair: &KeyPair,
+		keypair: &Keypair,
 		our_sec_nonces: Vec<musig::MusigSecNonce>,
 		our_pub_nonces: &[musig::MusigPubNonce],
 		asp_nonces: &[musig::MusigPubNonce],
@@ -188,7 +188,7 @@ impl OorTransaction {
 		for (input, sig) in tx.input.iter_mut().zip(self.signatures.iter()) {
 			assert!(input.witness.is_empty());
 			input.witness.push(&sig[..]);
-			debug_assert_eq!(crate::TAPROOT_KEYSPEND_WEIGHT, input.witness.serialized_len());
+			debug_assert_eq!(crate::TAPROOT_KEYSPEND_WEIGHT, input.witness.size());
 		}
 		//TODO(stevenroose) there seems to be a bug in the tx.weight method,
 		// this +2 might be fixed later
@@ -203,7 +203,7 @@ impl OorTransaction {

 		let expiry_height = self.payment.inputs.iter().map(|i| i.spec().expiry_height).min().unwrap();
 		let oor_tx = self.signed_transaction();
-		let oor_txid = oor_tx.txid();
+		let oor_txid = oor_tx.compute_txid();
 		self.payment.outputs.iter().enumerate().map(|(idx, output)| {
 			Vtxo::Oor {
 				inputs: inputs.clone(),
--- a/ark-lib/src/tree/signed.rs
+++ b/ark-lib/src/tree/signed.rs
@@ -131,12 +131,12 @@ impl VtxoTreeSpec {
 	}

 	pub fn cosign_spk(&self) -> ScriptBuf {
-		ScriptBuf::new_v1_p2tr_tweaked(self.cosign_taproot().output_key())
+		ScriptBuf::new_p2tr_tweaked(self.cosign_taproot().output_key())
 	}

 	fn node_tx(&self, children: &[&Transaction]) -> Transaction {
 		Transaction {
-			version: 2,
+			version: bitcoin::transaction::Version::TWO,
 			lock_time: bitcoin::absolute::LockTime::ZERO,
 			input: vec![TxIn {
 				previous_output: OutPoint::null(),
@@ -159,7 +159,7 @@ impl VtxoTreeSpec {
 				};
 				TxOut {
 					script_pubkey: self.cosign_spk(),
-					value: child.output.iter().map(|o| o.value).sum::<u64>() + fee_budget,
+					value: child.output.iter().map(|o| o.value).sum::<Amount>() + Amount::from_sat(fee_budget),
 				}
 			}).collect(),
 		}
@@ -178,7 +178,7 @@ impl VtxoTreeSpec {
 	fn leaf_tx(&self, vtxo: &VtxoRequest) -> Transaction {
 		let vtxo_spec = self.vtxo_spec(vtxo);
 		Transaction {
-			version: 2,
+			version: bitcoin::transaction::Version::TWO,
 			lock_time: bitcoin::absolute::LockTime::ZERO,
 			input: vec![TxIn {
 				previous_output: OutPoint::null(),
@@ -189,7 +189,7 @@ impl VtxoTreeSpec {
 			output: vec![
 				TxOut {
 					script_pubkey: vtxo_spec.exit_spk(),
-					value: vtxo.amount.to_sat(),
+					value: vtxo.amount,
 				},
 				fee::dust_anchor(),
 			],
@@ -205,7 +205,7 @@ impl VtxoTreeSpec {
 		// This is the root, set to the tree's on-chain utxo.
 		tree.element_at_mut(cursor).unwrap().input[0].previous_output = utxo;
 		while cursor >= tree.nb_leaves() {
-			let txid = tree.element_at(cursor).unwrap().txid();
+			let txid = tree.element_at(cursor).unwrap().compute_txid();
 			let nb_children = tree.nb_children_of(cursor).unwrap();
 			for i in 0..nb_children {
 				let prevout = OutPoint::new(txid, i as u32);
@@ -228,7 +228,7 @@ impl VtxoTreeSpec {
 				// this is the root
 				TxOut {
 					script_pubkey: self.cosign_spk(),
-					value: self.total_required_value().to_sat(),
+					value: self.total_required_value(),
 				}
 			};
 			let el = tree.element_at(idx).unwrap();
@@ -313,20 +313,21 @@ mod test {

 	use std::str::FromStr;

-	use bitcoin::hashes::sha256;
-	use bitcoin::secp256k1::{self, rand, KeyPair};
+	use bitcoin::hashes::{sha256, Hash};
+	use bitcoin::secp256k1::{self, rand, Keypair, Message};

 	use crate::musig;

 	#[test]
 	fn test_node_tx_sizes() {
 		let secp = secp256k1::Secp256k1::new();
-		let key1 = KeyPair::new(&secp, &mut rand::thread_rng()); // asp
-		let key2 = KeyPair::new(&secp, &mut rand::thread_rng());
+		let key1 = Keypair::new(&secp, &mut rand::thread_rng()); // asp
+		let key2 = Keypair::new(&secp, &mut rand::thread_rng());
 		let sha = sha256::Hash::from_str("4bf5122f344554c53bde2ebb8cd2b7e3d1600ad631c385a5d7cce23c7785459a").unwrap();
-		let sig = secp.sign_schnorr(&sha.into(), &key1);
+		let message = Message::from_digest_slice(&sha.to_byte_array()).unwrap();
+		let sig = secp.sign_schnorr(&message, &key1);
 		let dest = VtxoRequest {
-			pubkey: KeyPair::new(&secp, &mut rand::thread_rng()).public_key(),
+			pubkey: Keypair::new(&secp, &mut rand::thread_rng()).public_key(),
 			amount: Amount::from_sat(100_000),
 		};
 		let point = "0000000000000000000000000000000000000000000000000000000000000001:1".parse().unwrap();
@@ -352,7 +353,7 @@ mod test {
 				let mut iter = exit.iter().enumerate().peekable();
 				while let Some((i, cur)) = iter.next() {
 					if let Some((_, next)) = iter.peek() {
-						assert_eq!(next.input[0].previous_output.txid, cur.txid(), "{}", i);
+						assert_eq!(next.input[0].previous_output.txid, cur.compute_txid(), "{}", i);
 					}
 				}

@@ -362,7 +363,7 @@ mod test {
 				assert_eq!(leaf.vsize() as u64, LEAF_TX_VSIZE);
 				for node in iter {
 					assert_eq!(
-						node.input[0].witness.serialized_len(),
+						node.input[0].witness.size(),
 						crate::TAPROOT_KEYSPEND_WEIGHT,
 					);
 					match node.output.len() {
--- a/ark-lib/src/util.rs
+++ b/ark-lib/src/util.rs
@@ -2,16 +2,16 @@
 use std::borrow::Borrow;

 use bitcoin::{opcodes, taproot, ScriptBuf};
-use bitcoin::secp256k1::{self, KeyPair, XOnlyPublicKey};
+use bitcoin::secp256k1::{self, Keypair, XOnlyPublicKey};

 lazy_static::lazy_static! {
 	/// Global secp context.
 	pub static ref SECP: secp256k1::Secp256k1<secp256k1::All> = secp256k1::Secp256k1::new();
 }

-pub trait KeyPairExt: Borrow<KeyPair> {
+pub trait KeypairExt: Borrow<Keypair> {
 	/// Adapt this key pair to be used in a key-spend-only taproot.
-	fn for_keyspend(&self) -> KeyPair {
+	fn for_keyspend(&self) -> Keypair {
 		let tweak = taproot::TapTweakHash::from_key_and_tweak(
 			self.borrow().x_only_public_key().0, None,
 		).to_scalar();
@@ -19,7 +19,7 @@ pub trait KeyPairExt: Borrow<KeyPair> {
 	}
 }

-impl KeyPairExt for KeyPair {}
+impl KeypairExt for Keypair {}

 /// Create a tapscript that is a checksig and a relative timelock.
 pub fn delayed_sign(delay_blocks: u16, pubkey: XOnlyPublicKey) -> ScriptBuf {
--- a/arkd/Cargo.toml
+++ b/arkd/Cargo.toml
@@ -22,7 +22,7 @@ serde_json.workspace = true
 ciborium.workspace = true
 bitcoin.workspace = true
 bip39.workspace = true
-bdk.workspace = true
+bdk_wallet.workspace = true
 bdk_file_store.workspace = true
 bdk_bitcoind_rpc.workspace = true
 prost.workspace = true
--- a/arkd/src/database/mod.rs
+++ b/arkd/src/database/mod.rs
@@ -102,7 +102,7 @@ pub struct StoredRound {

 impl StoredRound {
 	pub fn id(&self) -> Txid {
-		self.tx.txid()
+		self.tx.compute_txid()
 	}

 	fn encode(&self) -> Vec<u8> {
--- a/arkd/src/lib.rs
+++ b/arkd/src/lib.rs
@@ -20,12 +20,12 @@ use std::str::FromStr;
 use std::time::Duration;

 use anyhow::Context;
-use bdk_bitcoind_rpc::bitcoincore_rpc::RpcApi;
+use bdk_bitcoind_rpc::bitcoincore_rpc::{RawTx, RpcApi};
 use bitcoin::{bip32, sighash, psbt, taproot, Amount, Address, OutPoint, Transaction, Witness};
-use bitcoin::secp256k1::{self, KeyPair};
+use bitcoin::secp256k1::{self, Keypair};
 use tokio::sync::{Mutex, RwLock};

-use ark::util::KeyPairExt;
+use ark::util::KeypairExt;
 use ark::musig;

 use crate::psbtext::{PsbtInputExt, RoundMeta};
@@ -91,11 +91,11 @@ pub struct RoundHandle {
 pub struct App {
 	config: Config,
 	db: database::Db,
-	master_xpriv: bip32::ExtendedPrivKey,
-	master_key: KeyPair,
-	wallet: Mutex<bdk::Wallet<bdk_file_store::Store<'static, bdk::wallet::ChangeSet>>>,
+	master_xpriv: bip32::Xpriv,
+	master_key: Keypair,
+	wallet: Mutex<bdk_wallet::Wallet>,
+	wallet_store: Mutex<bdk_file_store::Store<bdk_wallet::wallet::ChangeSet>>,
 	bitcoind: bdk_bitcoind_rpc::bitcoincore_rpc::Client,
-	
 	rounds: Option<RoundHandle>,
 }

@@ -146,23 +146,26 @@ impl App {
 			.context("db error")?
 			.context("db doesn't contain seed")?;
 		let (master_key, xpriv) = {
-			let seed_xpriv = bip32::ExtendedPrivKey::new_master(config.network, &seed).unwrap();
+			let seed_xpriv = bip32::Xpriv::new_master(config.network, &seed).unwrap();
 			let path = bip32::DerivationPath::from_str("m/0").unwrap();
 			let xpriv = seed_xpriv.derive_priv(&SECP, &path).unwrap();
-			let keypair = KeyPair::from_secret_key(&SECP, &xpriv.private_key);
+			let keypair = Keypair::from_secret_key(&SECP, &xpriv.private_key);
 			(keypair, xpriv)
 		};

-		let wallet = {
-			let db_path = datadir.join("wallet.db");
-			info!("Loading wallet db from {}", db_path.display());
-			let db = bdk_file_store::Store::<bdk::wallet::ChangeSet>::open_or_create_new(
-				DB_MAGIC.as_bytes(), db_path,
+		let db_path = datadir.join("wallet.db");
+		info!("Loading wallet db from {}", db_path.display());
+		let mut file_store = bdk_file_store::Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(
+			DB_MAGIC.as_bytes(), db_path,
 			)?;
+		let wallet = {
+			let change_set = file_store.aggregate_changesets()?;

-			let desc = format!("tr({})", xpriv);
-			debug!("Opening BDK wallet with descriptor {}", desc);
-			bdk::Wallet::new_or_load(&desc, None, db, config.network)
+			let edesc = format!("tr({}/84'/0'/0'/0/*)", xpriv);
+			let idesc = format!("tr({}/84'/0'/0'/1/*)", xpriv);
+
+			debug!("Opening BDK wallet with descriptor {}", edesc);
+			bdk_wallet::Wallet::new_or_load(&edesc, &idesc, change_set, config.network)
 				.context("failed to create or load bdk wallet")?
 		};

@@ -173,12 +176,13 @@ impl App {


 		Ok(Arc::new(App {
-			config: config,
-			db: db,
+			config,
+			db,
 			master_xpriv: xpriv,
-			master_key: master_key,
+			master_key,
 			wallet: Mutex::new(wallet),
-			bitcoind: bitcoind,
+			wallet_store: Mutex::new(file_store),
+			bitcoind,
 			rounds: None,
 		}))
 	}
@@ -192,9 +196,9 @@ impl App {

 		mut_self.rounds = Some(RoundHandle {
 			round_busy: RwLock::new(()),
-			round_event_tx: round_event_tx,
-			round_input_tx: round_input_tx,
-			round_trigger_tx: round_trigger_tx,
+			round_event_tx,
+			round_input_tx,
+			round_trigger_tx,
 		});

 		let app = self.clone();
@@ -237,14 +241,15 @@ impl App {

 	pub async fn onchain_address(&self) -> anyhow::Result<Address> {
 		let mut wallet = self.wallet.lock().await;
-		let ret = wallet.try_get_address(bdk::wallet::AddressIndex::New)?.address;
+		let ret = wallet.next_unused_address(bdk_wallet::KeychainKind::External).address;
 		// should always return the same address
-		debug_assert_eq!(ret, wallet.try_get_address(bdk::wallet::AddressIndex::New)?.address);
+		debug_assert_eq!(ret, wallet.next_unused_address(bdk_wallet::KeychainKind::External).address);
 		Ok(ret)
 	}

-	pub async fn sync_onchain_wallet(&self) -> anyhow::Result<Amount> {
+	pub async fn sync_onchain_wallet(& self) -> anyhow::Result<Amount> {
 		let mut wallet = self.wallet.lock().await;
+		let mut file_store = self.wallet_store.lock().await;
 		let prev_tip = wallet.latest_checkpoint();
 		// let keychain_spks = self.wallet.spks_of_all_keychains();

@@ -255,29 +260,33 @@ impl App {

 			if em.block_height() % 10_000 == 0 {
 				debug!("Synced until block {}, committing...", em.block_height());
-				wallet.commit()?;
+				if let Some(change_set) = wallet.take_staged() {
+					file_store.append_changeset(&change_set)?;
+				}
 			}
 		}

 		// mempool
 		let mempool = emitter.mempool()?;
 		wallet.apply_unconfirmed_txs(mempool.iter().map(|(tx, time)| (tx, *time)));
-		wallet.commit()?;
+		if let Some(change_set) = wallet.take_staged() {
+			file_store.append_changeset(&change_set)?;
+		}

 		// rebroadcast unconfirmed txs
 		// NB during some round failures we commit a tx but fail to broadcast it,
 		// so this ensures we still broadcast them afterwards
 		for tx in wallet.transactions() {
 			if !tx.chain_position.is_confirmed() {
-				let bc = self.bitcoind.send_raw_transaction(tx.tx_node.tx);
+				let bc = self.bitcoind.send_raw_transaction(tx.tx_node.tx.raw_hex());
 				if let Err(e) = bc {
 					warn!("Error broadcasting pending tx: {}", e);
 				}
 			}
 		}

-		let balance = wallet.get_balance();
-		Ok(Amount::from_sat(balance.total()))
+		let balance = wallet.balance();
+		Ok(balance.total())
 	}

 	pub async fn drain(
@@ -288,20 +297,23 @@ impl App {

 		let addr = address.require_network(self.config.network)?;

+		let mut file_store = self.wallet_store.lock().await;
 		let mut wallet = self.wallet.lock().await;
 		let mut b = wallet.build_tx();
 		b.drain_to(addr.script_pubkey());
 		b.drain_wallet();
 		let mut psbt = b.finish().context("error building tx")?;
-		let finalized = wallet.sign(&mut psbt, bdk::SignOptions::default())?;
+		let finalized = wallet.sign(&mut psbt, bdk_wallet::SignOptions::default())?;
 		assert!(finalized);
-		let tx = psbt.extract_tx();
-		wallet.commit()?;
+		let tx = psbt.extract_tx()?;
+		if let Some(change_set) = wallet.take_staged() {
+			file_store.append_changeset(&change_set)?;
+		};
 		drop(wallet);

-		if let Err(e) = self.bitcoind.send_raw_transaction(&tx) {
+		if let Err(e) = self.bitcoind.send_raw_transaction(tx.raw_hex()) {
 			error!("Error broadcasting tx: {}", e);
-			error!("Try yourself: {}", bitcoin::consensus::encode::serialize_hex(&tx));
+			error!("Try yourself: {}", tx.raw_hex());
 		}

 		Ok(tx)
@@ -404,7 +416,7 @@ impl App {
 						let wit = Witness::from_slice(
 							&[&sig[..], script.as_bytes(), &control.serialize()],
 						);
-						debug_assert_eq!(wit.serialized_len(), ark::tree::signed::NODE_SPEND_WEIGHT);
+						debug_assert_eq!(wit.size(), ark::tree::signed::NODE_SPEND_WEIGHT);
 						input.final_script_witness = Some(wit);
 					},
 					RoundMeta::Connector => {
@@ -443,6 +455,6 @@ pub(crate) struct SpendableUtxo {

 impl SpendableUtxo {
 	pub fn amount(&self) -> Amount {
-		Amount::from_sat(self.psbt.witness_utxo.as_ref().unwrap().value)
+		self.psbt.witness_utxo.as_ref().unwrap().value
 	}
 }
--- a/arkd/src/main.rs
+++ b/arkd/src/main.rs
@@ -137,7 +137,7 @@ async fn inner_main() -> anyhow::Result<()> {
 		},
 		Command::Drain { address } => {
 			let app = App::open(&cli.datadir.context("need datadir")?).context("server init")?;
-			println!("{}", app.drain(address).await?.txid());
+			println!("{}", app.drain(address).await?.compute_txid());
 		},
 		Command::GetMnemonic => {
 			let app = App::open(&cli.datadir.context("need datadir")?).context("server init")?;
--- a/arkd/src/round/mod.rs
+++ b/arkd/src/round/mod.rs
@@ -9,7 +9,7 @@ use bdk_bitcoind_rpc::bitcoincore_rpc::RpcApi;
 use bitcoin::{Amount, FeeRate, OutPoint, Sequence, Transaction};
 use bitcoin::hashes::Hash;
 use bitcoin::locktime::absolute::LockTime;
-use bitcoin::secp256k1::{rand, KeyPair, PublicKey};
+use bitcoin::secp256k1::{rand, Keypair, PublicKey};
 use bitcoin::sighash::TapSighash;

 use ark::{musig, OffboardRequest, VtxoRequest, Vtxo, VtxoId};
@@ -205,7 +205,7 @@ pub async fn run_round_scheduler(
 			// NB allowed_inputs should NOT be cleared here.

 			// Generate a one-time use signing key.
-			let cosign_key = KeyPair::new(&SECP, &mut rand::thread_rng());
+			let cosign_key = Keypair::new(&SECP, &mut rand::thread_rng());
 			cosigners.insert(cosign_key.public_key());

 			// Start receiving payments.
@@ -322,24 +322,24 @@ pub async fn run_round_scheduler(
 			let mut wallet = app.wallet.lock().await;
 			let mut round_tx_psbt = {
 				let mut b = wallet.build_tx();
-				b.ordering(bdk::wallet::tx_builder::TxOrdering::Untouched);
+				b.ordering(bdk_wallet::wallet::tx_builder::TxOrdering::Untouched);
 				b.nlocktime(LockTime::from_height(tip).expect("actual height"));
 				for utxo in &spendable_utxos {
 					b.add_foreign_utxo_with_sequence(
 						utxo.point, utxo.psbt.clone(), utxo.weight, Sequence::ZERO,
 					).expect("bdk rejected foreign utxo");
 				}
-				b.add_recipient(vtxos_spec.cosign_spk(), vtxos_spec.total_required_value().to_sat());
+				b.add_recipient(vtxos_spec.cosign_spk(), vtxos_spec.total_required_value());
 				b.add_recipient(connector_output.script_pubkey, connector_output.value);
 				for offb in &all_offboards {
-					b.add_recipient(offb.script_pubkey.clone(), offb.amount.to_sat());
+					b.add_recipient(offb.script_pubkey.clone(), offb.amount);
 				}
 				b.fee_rate(round_tx_feerate.to_bdk());
 				b.finish().expect("bdk failed to create round tx")
 			};
-			let round_tx = round_tx_psbt.clone().extract_tx();
-			let vtxos_utxo = OutPoint::new(round_tx.txid(), 0);
-			let conns_utxo = OutPoint::new(round_tx.txid(), 1);
+			let round_tx = round_tx_psbt.clone().extract_tx()?;
+			let vtxos_utxo = OutPoint::new(round_tx.compute_txid(), 0);
+			let conns_utxo = OutPoint::new(round_tx.compute_txid(), 1);

 			// Generate vtxo nonces and combine with user's nonces.
 			let (sec_vtxo_nonces, pub_vtxo_nonces) = {
@@ -570,18 +570,21 @@ pub async fn run_round_scheduler(

 			// Sign the on-chain tx.
 			app.sign_round_utxo_inputs(&mut round_tx_psbt).context("signing round inputs")?;
-			let opts = bdk::SignOptions {
+			let opts = bdk_wallet::SignOptions {
 				trust_witness_utxo: true,
 				..Default::default()
 			};
 			let finalized = wallet.sign(&mut round_tx_psbt, opts)?;
 			assert!(finalized);
-			let round_tx = round_tx_psbt.extract_tx();
-			wallet.commit()?;
+			let round_tx = round_tx_psbt.extract_tx()?;
+			let mut file_store = app.wallet_store.lock().await;
+			if let Some(change_set) = wallet.take_staged() {
+				file_store.append_changeset(&change_set)?;
+			}
 			drop(wallet); // we no longer need the lock

 			// Broadcast over bitcoind.
-			debug!("Broadcasting round tx {}", round_tx.txid());
+			debug!("Broadcasting round tx {}", round_tx.compute_txid());
 			let bc = app.bitcoind.send_raw_transaction(&round_tx);
 			if let Err(e) = bc {
 				warn!("Couldn't broadcast round tx: {}", e);
@@ -596,7 +599,7 @@ pub async fn run_round_scheduler(
 			});

 			// Store forfeit txs and round info in database.
-			let round_id = round_tx.txid();
+			let round_id = round_tx.compute_txid();
 			for (id, vtxo) in all_inputs {
 				let forfeit_sigs = forfeit_sigs.remove(&id).unwrap();
 				let point = vtxo.point();
@@ -615,7 +618,7 @@ pub async fn run_round_scheduler(
 				app.db.remove_round(round)?;
 			}

-			info!("Finished round {} with tx {}", round_id, round_tx.txid());
+			info!("Finished round {} with tx {}", round_id, round_tx.compute_txid());
 			break 'attempt;
 		}
 	}
--- a/arkd/src/util.rs
+++ b/arkd/src/util.rs
@@ -5,8 +5,8 @@ use std::borrow::Borrow;
 use bitcoin::FeeRate;

 pub trait FeeRateExt: Borrow<FeeRate> + Copy {
-	fn to_bdk(self) -> bdk::FeeRate {
-		bdk::FeeRate::from_sat_per_kwu(self.borrow().to_sat_per_kwu() as f32)
+	fn to_bdk(self) -> bitcoin::FeeRate {
+		bitcoin::FeeRate::from_sat_per_kwu(self.borrow().to_sat_per_kwu())
 	}
 }

--- a/noah/Cargo.toml
+++ b/noah/Cargo.toml
@@ -29,7 +29,7 @@ ciborium.workspace = true
 bitcoin.workspace = true
 bip39.workspace = true
 miniscript.workspace = true
-bdk.workspace = true
+bdk_wallet.workspace = true
 bdk_file_store.workspace = true
 bdk_bitcoind_rpc.workspace = true
 bdk_esplora.workspace = true
--- a/noah/src/exit.rs
+++ b/noah/src/exit.rs
@@ -116,10 +116,10 @@ impl Wallet {

 		// Broadcast exit txs.
 		for tx in &exit.broadcast {
-			trace!("Broadcasting tx {}: {}", tx.txid(), bitcoin::consensus::encode::serialize_hex(tx));
+			trace!("Broadcasting tx {}: {}", tx.compute_txid(), bitcoin::consensus::encode::serialize_hex(tx));
 			if let Err(e) = self.onchain.broadcast_tx(tx).await {
-				error!("Error broadcasting exit tx {}: {}", tx.txid(), e);
-				error!("Tx {}: {}", tx.txid(), bitcoin::consensus::encode::serialize_hex(tx));
+				error!("Error broadcasting exit tx {}: {}", tx.compute_txid(), e);
+				error!("Tx {}: {}", tx.compute_txid(), bitcoin::consensus::encode::serialize_hex(tx));
 			}
 		}

@@ -145,7 +145,7 @@ impl Wallet {

 		// Then we'll send a tx that will pay the fee for all the txs we made.
 		let tx = self.onchain.spend_fee_anchors(&exit.fee_anchors, exit.total_size).await?;
-		info!("Sent anchor spend tx: {}", tx.txid());
+		info!("Sent anchor spend tx: {}", tx.compute_txid());

 		// After we succesfully stored the claim inputs, we can drop the vtxos.
 		for id in exit.started {
@@ -232,7 +232,7 @@ impl Wallet {
 			let wit = Witness::from_slice(
 				&[&sig[..], exit_script.as_bytes(), &cb.serialize()],
 			);
-			debug_assert_eq!(wit.serialized_len(), claim.satisfaction_weight());
+			debug_assert_eq!(wit.size(), claim.satisfaction_weight());
 			input.final_script_witness = Some(wit);
 		}

--- a/noah/src/lib.rs
+++ b/noah/src/lib.rs
@@ -17,7 +17,7 @@ use std::str::FromStr;
 use anyhow::{bail, Context};
 use bitcoin::{bip32, secp256k1, Address, Amount, FeeRate, Network, OutPoint, Transaction, Txid};
 use bitcoin::hashes::Hash;
-use bitcoin::secp256k1::{rand, KeyPair, PublicKey};
+use bitcoin::secp256k1::{rand, Keypair, PublicKey};
 use tokio_stream::StreamExt;

 use ark::{musig, BaseVtxo, OffboardRequest, VtxoRequest, Vtxo, VtxoId, VtxoSpec};
@@ -98,7 +98,7 @@ pub struct Wallet {
 	config: Config,
 	db: database::Db,
 	onchain: onchain::Wallet,
-	vtxo_seed: bip32::ExtendedPrivKey,
+	vtxo_seed: bip32::Xpriv,
 	// ASP stuff
 	asp: rpc::ArkServiceClient<tonic::transport::Channel>,
 	ark_info: ArkInfo,
@@ -184,7 +184,7 @@ impl Wallet {
 			};
 			onchain::ChainSource::Bitcoind {
 				url: url.clone(),
-				auth: auth,
+				auth,
 			}
 		} else {
 			bail!("Need to either provide esplora or bitcoind info");
@@ -195,7 +195,7 @@ impl Wallet {
 		let db = database::Db::open(&datadir.join("db")).context("failed to open db")?;

 		let vtxo_seed = {
-			let master = bip32::ExtendedPrivKey::new_master(config.network, &seed).unwrap();
+			let master = bip32::Xpriv::new_master(config.network, &seed).unwrap();
 			master.derive_priv(&SECP, &[350.into()]).unwrap()
 		};

@@ -277,7 +277,7 @@ impl Wallet {
 			asp_pubkey: self.ark_info.asp_pubkey,
 			expiry_height: current_height + self.ark_info.vtxo_expiry_delta as u32,
 			exit_delta: self.ark_info.vtxo_exit_delta,
-			amount: amount,
+			amount,
 		};
 		let onboard_amount = amount + ark::onboard::onboard_surplus();
 		let addr = Address::from_script(&ark::onboard::onboard_spk(&spec), self.config.network).unwrap();
@@ -285,7 +285,7 @@ impl Wallet {
 		// We create the onboard tx template, but don't sign it yet.
 		self.onchain.sync().await.context("sync error")?;
 		let onboard_tx = self.onchain.prepare_tx(addr, onboard_amount)?;
-		let utxo = OutPoint::new(onboard_tx.unsigned_tx.txid(), 0);
+		let utxo = OutPoint::new(onboard_tx.unsigned_tx.compute_txid(), 0);

 		// We ask the ASP to cosign our onboard vtxo reveal tx.
 		let (user_part, priv_user_part) = ark::onboard::new_user(spec, utxo);
@@ -332,8 +332,8 @@ impl Wallet {
 				},
 				utxo: vtxos.utxo,
 			},
-			leaf_idx: leaf_idx,
-			exit_branch: exit_branch,
+			leaf_idx,
+			exit_branch,
 		};

 		if self.db.has_forfeited_vtxo(vtxo.id())? {
@@ -571,7 +571,6 @@ impl Wallet {
 	}

 	pub async fn send_ark_onchain_payment(&mut self, addr: Address, amount: Amount) -> anyhow::Result<()> {
-		ensure!(addr.network == self.config.network, "invalid addr network");

 		//TODO(stevenroose) impl key derivation
 		let vtxo_key = self.vtxo_seed.to_keypair(&SECP);
@@ -592,7 +591,7 @@ impl Wallet {
 		self.participate_round(move |_id, offb_fr| {
 			let offb = OffboardRequest {
 				script_pubkey: addr.script_pubkey(),
-				amount: amount,
+				amount,
 			};
 			let out_value = amount + offb.fee(offb_fr).expect("script from address");
 			let change = {
@@ -659,7 +658,7 @@ impl Wallet {


 		'round: loop {
-			let cosign_key = KeyPair::new(&SECP, &mut rand::thread_rng());
+			let cosign_key = Keypair::new(&SECP, &mut rand::thread_rng());
 			debug!("Participating in round {} with cosign pubkey {}",
 				round_id, cosign_key.public_key(),
 			);
@@ -736,8 +735,8 @@ impl Wallet {
 				}
 			};

-			let vtxos_utxo = OutPoint::new(round_tx.txid(), 0);
-			let conns_utxo = OutPoint::new(round_tx.txid(), 1);
+			let vtxos_utxo = OutPoint::new(round_tx.compute_txid(), 0);
+			let conns_utxo = OutPoint::new(round_tx.compute_txid(), 1);

 			// Check that the proposal contains our inputs.
 			let mut my_vtxos = vtxo_reqs.clone();
@@ -911,7 +910,7 @@ impl Wallet {
 			}

 			// We also broadcast the tx, just to have it go around faster.
-			info!("Round finished, broadcasting round tx {}", round_tx.txid());
+			info!("Round finished, broadcasting round tx {}", round_tx.compute_txid());
 			if let Err(e) = self.onchain.broadcast_tx(&round_tx).await {
 				warn!("Couldn't broadcast round tx: {}", e);
 			}
--- a/noah/src/onchain/mod.rs
+++ b/noah/src/onchain/mod.rs
@@ -2,16 +2,18 @@
 mod chain;
 pub use self::chain::ChainSource;

+use std::collections::BTreeSet;
+use std::io::Write;
 use std::path::Path;

 use anyhow::Context;
-use bdk::SignOptions;
+use bdk_wallet::{KeychainKind, SignOptions};
 use bdk_file_store::Store;
 use bdk_esplora::EsploraAsyncExt;
 use bitcoin::{
-	bip32, psbt, Address, Amount, Network, OutPoint, Sequence, Transaction, TxOut, Txid,
+	bip32, psbt, Address, Amount, Network, OutPoint, Script, Sequence, Transaction, TxOut, Txid
 };
-use bitcoin::psbt::PartiallySignedTransaction as Psbt; //TODO(stevenroose) when v0.31
+use bitcoin::psbt::Psbt; //TODO(stevenroose) when v0.31

 use crate::exit;
 use crate::psbtext::PsbtInputExt;
@@ -20,7 +22,8 @@ use self::chain::ChainSourceClient;
 const DB_MAGIC: &str = "onchain_bdk";

 pub struct Wallet {
-	wallet: bdk::Wallet<Store<'static, bdk::wallet::ChangeSet>>,
+	wallet: bdk_wallet::Wallet,
+	file_store: Store<bdk_wallet::wallet::ChangeSet>,
 	chain_source: ChainSourceClient,
 }

@@ -32,18 +35,19 @@ impl Wallet {
 		chain_source: ChainSource,
 	) -> anyhow::Result<Wallet> {
 		let db_path = dir.join("bdkwallet.db");
-		let db = Store::<bdk::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?;
+		let mut db = Store::<bdk_wallet::wallet::ChangeSet>::open_or_create_new(DB_MAGIC.as_bytes(), db_path)?;
+		let change_set = db.aggregate_changesets()?;

 		//TODO(stevenroose) taproot?
-		let xpriv = bip32::ExtendedPrivKey::new_master(network, &seed).expect("valid seed");
+		let xpriv = bip32::Xpriv::new_master(network, &seed).expect("valid seed");
 		let edesc = format!("tr({}/84'/0'/0'/0/*)", xpriv);
 		let idesc = format!("tr({}/84'/0'/0'/1/*)", xpriv);

-		let wallet = bdk::Wallet::new_or_load(&edesc, Some(&idesc), db, network)
+		let wallet = bdk_wallet::Wallet::new_or_load(&edesc, &idesc, change_set, network)
 			.context("failed to create or load bdk wallet")?;
 		
 		let chain_source = ChainSourceClient::new(chain_source)?;
-		Ok(Wallet { wallet, chain_source })
+		Ok(Wallet { wallet, chain_source, file_store: db })
 	}

 	pub async fn tip(&self) -> anyhow::Result<u32> {
@@ -58,6 +62,18 @@ impl Wallet {
 		self.chain_source.txout_confirmations(outpoint).await
 	}

+	fn generate_inspect(kind: KeychainKind) -> impl FnMut(u32, &Script) + Send + Sync + 'static {
+        let mut once = Some(());
+        let mut stdout = std::io::stdout();
+        move |spk_i, _| {
+            match once.take() {
+                Some(_) => print!("\nScanning keychain [{:?}]", kind),
+                None => print!(" {:<3}", spk_i),
+            };
+            stdout.flush().expect("must flush");
+        }
+    }
+
 	pub async fn sync(&mut self) -> anyhow::Result<Amount> {
 		debug!("Starting wallet sync...");

@@ -71,40 +87,59 @@ impl Wallet {
 					self.wallet.apply_block_connected_to(
 						&em.block, em.block_height(), em.connected_to(),
 					)?;
-					self.wallet.commit()?;
+					if let Some(change_set) = self.wallet.take_staged() {
+						self.file_store.append_changeset(&change_set)?;
+					}
 				}

 				let mempool = emitter.mempool()?;
 				self.wallet.apply_unconfirmed_txs(mempool.iter().map(|(tx, time)| (tx, *time)));
-				self.wallet.commit()?;
+				if let Some(change_set) = self.wallet.take_staged() {
+					self.file_store.append_changeset(&change_set)?;
+				}
 			},
 			ChainSourceClient::Esplora(ref client) => {
+				let request = self.wallet.start_full_scan().inspect_spks_for_all_keychains({
+					let mut once = BTreeSet::<KeychainKind>::new();
+					move |keychain, spk_i, _| {
+						match once.insert(keychain) {
+							true => print!("\nScanning keychain [{:?}]", keychain),
+							false => print!(" {:<3}", spk_i),
+						}
+						std::io::stdout().flush().expect("must flush")
+					}
+				}).inspect_spks_for_keychain(
+					KeychainKind::External,
+					Self::generate_inspect(KeychainKind::External),
+					)
+					.inspect_spks_for_keychain(
+						KeychainKind::Internal,
+						Self::generate_inspect(KeychainKind::Internal),
+						);
 				const STOP_GAP: usize = 50;
+				const PARALLEL_REQUESTS: usize = 5;
+
+				let mut update = client
+					.full_scan(request, STOP_GAP, PARALLEL_REQUESTS)
+					.await?;
+				let now = std::time::UNIX_EPOCH.elapsed().unwrap().as_secs();
+				let _ = update.graph_update.update_last_seen_unconfirmed(now);

-				let prev_tip = self.wallet.latest_checkpoint();
-				let keychain_spks = self.wallet.spks_of_all_keychains().into_iter().collect();
-				let (update_graph, last_active_indices) =
-					client.full_scan(keychain_spks, STOP_GAP, 4).await?;
-				let missing_heights = update_graph.missing_heights(self.wallet.local_chain());
-				let chain_update = client.update_local_chain(prev_tip, missing_heights).await?;
-				let update = bdk::wallet::Update {
-					last_active_indices,
-					graph: update_graph,
-					chain: Some(chain_update),
-				};
 				self.wallet.apply_update(update)?;
-				self.wallet.commit()?;
+				if let Some(change_set) = self.wallet.take_staged() {
+					self.file_store.append_changeset(&change_set)?;
+				}
 			},
 		}

-		let balance = self.wallet.get_balance();
-		Ok(Amount::from_sat(balance.total()))
+		let balance = self.wallet.balance();
+		Ok(balance.total())
 	}

 	/// Fee rate to use for regular txs like onboards.
-	fn regular_fee_rate_bdk(&self) -> bdk::FeeRate {
+	fn regular_fee_rate_bdk(&self) -> bitcoin::FeeRate {
 		//TODO(stevenroose) get from somewhere
-		bdk::FeeRate::from_sat_per_vb(10.0)
+		bitcoin::FeeRate::from_sat_per_vb(10).unwrap()
 	}

 	/// Fee rate to use for regular txs like onboards.
@@ -113,16 +148,16 @@ impl Wallet {
 	}

 	/// Fee rate to use for urgent txs like exits.
-	fn urgent_fee_rate_bdk(&self) -> bdk::FeeRate {
+	fn urgent_fee_rate_bdk(&self) -> bitcoin::FeeRate {
 		//TODO(stevenroose) get from somewhere
-		bdk::FeeRate::from_sat_per_vb(100.0)
+		bitcoin::FeeRate::from_sat_per_vb(100).unwrap()
 	}

 	pub fn prepare_tx(&mut self, dest: Address, amount: Amount) -> anyhow::Result<Psbt> {
 		let fee_rate = self.regular_fee_rate_bdk();
 		let mut b = self.wallet.build_tx();
-		b.ordering(bdk::wallet::tx_builder::TxOrdering::Untouched);
-		b.add_recipient(dest.script_pubkey(), amount.to_sat());
+		b.ordering(bdk_wallet::wallet::tx_builder::TxOrdering::Untouched);
+		b.add_recipient(dest.script_pubkey(), amount);
 		b.fee_rate(fee_rate);
 		b.enable_rbf();
 		Ok(b.finish()?)
@@ -135,8 +170,10 @@ impl Wallet {
 		};
 		let finalized = self.wallet.sign(&mut psbt, opts).context("failed to sign")?;
 		assert!(finalized);
-		self.wallet.commit().context("error committing wallet")?;
-		Ok(psbt.extract_tx())
+		if let Some(change_set) = self.wallet.take_staged() {
+			self.file_store.append_changeset(&change_set)?;
+		}
+		Ok(psbt.extract_tx()?)
 	}

 	pub async fn send_money(&mut self, dest: Address, amount: Amount) -> anyhow::Result<Txid> {
@@ -144,17 +181,16 @@ impl Wallet {
 		let psbt = self.prepare_tx(dest, amount)?;
 		let tx = self.finish_tx(psbt)?;
 		self.broadcast_tx(&tx).await?;
-		Ok(tx.txid())
+		Ok(tx.compute_txid())
 	}

 	pub fn new_address(&mut self) -> anyhow::Result<Address> {
-		Ok(self.wallet.try_get_address(bdk::wallet::AddressIndex::New)?.address)
+		Ok(self.wallet.next_unused_address(KeychainKind::External).address)
 	}

-	fn add_anchors<A, B, C>(b: &mut bdk::TxBuilder<A, B, C>, anchors: &[OutPoint])
+	fn add_anchors<A>(b: &mut bdk_wallet::TxBuilder<A>, anchors: &[OutPoint])
 	where 
-		B: bdk::wallet::coin_selection::CoinSelectionAlgorithm,
-		C: bdk::wallet::tx_builder::TxBuilderContext,
+		A: bdk_wallet::wallet::coin_selection::CoinSelectionAlgorithm,
 	{
 		for utxo in anchors {
 			let psbt_in = psbt::Input {
@@ -181,15 +217,15 @@ impl Wallet {
 		// overshoot the fee, but we prefer that over undershooting it.

 		let urgent_fee_rate = self.urgent_fee_rate_bdk();
-		let package_fee = urgent_fee_rate.fee_vb(package_vsize);
+		let package_fee = urgent_fee_rate.fee_vb(package_vsize.try_into()?).unwrap();

 		// Since BDK doesn't allow tx without recipients, we add a drain output.
-		let change_addr = self.wallet.try_get_internal_address(bdk::wallet::AddressIndex::New)?;
+		let change_addr = self.wallet.next_unused_address(KeychainKind::Internal);

 		let template_size = {
 			let mut b = self.wallet.build_tx();
 			Wallet::add_anchors(&mut b, anchors);
-			b.add_recipient(change_addr.address.script_pubkey(), package_fee + ark::P2TR_DUST_SAT);
+			b.add_recipient(change_addr.address.script_pubkey(), package_fee + Amount::from_sat(ark::P2TR_DUST_SAT));
 			b.fee_rate(urgent_fee_rate);
 			let mut psbt = b.finish().expect("failed to craft anchor spend template");
 			let opts = SignOptions {
@@ -199,11 +235,11 @@ impl Wallet {
 			let finalized = self.wallet.sign(&mut psbt, opts)
 				.expect("failed to sign anchor spend template");
 			assert!(finalized);
-			psbt.extract_tx().vsize()
+			psbt.extract_tx()?.vsize()
 		};

 		let total_vsize = template_size + package_vsize;
-		let total_fee = self.urgent_fee_rate_bdk().fee_vb(total_vsize);
+		let total_fee = self.urgent_fee_rate_bdk().fee_vb(total_vsize as u64).unwrap();

 		// Then build actual tx.
 		let mut b = self.wallet.build_tx();
@@ -224,7 +260,7 @@ impl Wallet {
 		let urgent_fee_rate = self.urgent_fee_rate_bdk();

 		// Since BDK doesn't allow tx without recipients, we add a drain output.
-		let change_addr = self.wallet.try_get_internal_address(bdk::wallet::AddressIndex::New)?;
+		let change_addr = self.wallet.next_unused_address(KeychainKind::Internal);

 		let mut b = self.wallet.build_tx();
 		b.version(2);
@@ -233,7 +269,7 @@ impl Wallet {
 			psbt_in.set_claim_input(input);
 			psbt_in.witness_utxo = Some(TxOut {
 				script_pubkey: input.spec.exit_spk(),
-				value: input.spec.amount.to_sat(),
+				value: input.spec.amount,
 			});
 			b.add_foreign_utxo_with_sequence(
 				input.utxo,