CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

• Overhauled sync logic for electrum and esplora.
• Unify ureq and reqwest esplora backends to have the same configuration parameters. This means reqwest now has a timeout parameter and ureq has a concurrency parameter.
• Fixed esplora fee estimation.

v0.14.0 - v0.13.0

• BIP39 implementation dependency, in keys::bip39 changed from tiny-bip39 to rust-bip39.
• Add new method on the TxBuilder to embed data in the transaction via OP_RETURN. To allow that a fix to check the dust only on spendable output has been introduced.
• Update the Database trait to store the last sync timestamp and block height
• Rename ConfirmationTime to BlockTime

v0.13.0 - v0.12.0

• Exposed get_tx() method from Database to Wallet.

v0.12.0 - v0.11.0

• Activate miniscript/use-serde feature to allow consumers of the library to access it via the re-exported miniscript crate.
• Add support for proxies in EsploraBlockchain
• Added SqliteDatabase that implements Database backed by a sqlite database using rusqlite crate.

v0.11.0 - v0.10.0

• Added flush method to the Database trait to explicitly flush to disk latest changes on the db.

v0.10.0 - v0.9.0

• Added RpcBlockchain in the AnyBlockchain struct to allow using Rpc backend where AnyBlockchain is used (eg bdk-cli)
• Removed hard dependency on tokio.

Wallet

• Removed and replaced set_single_recipient with more general drain_to and replaced maintain_single_recipient with allow_shrinking.

Blockchain

• Removed stop_gap from Blockchain trait and added it to only ElectrumBlockchain and EsploraBlockchain structs.
• Added a ureq backend for use when not using feature async-interface or target WASM. ureq is a blocking HTTP client.

v0.9.0 - v0.8.0

Wallet

• Added Bitcoin core RPC added as blockchain backend
• Added a verify feature that can be enable to verify the unconfirmed txs we download against the consensus rules

v0.8.0 - v0.7.0

Wallet

• Added an option that must be explicitly enabled to allow signing using non-SIGHASH_ALL sighashes (#350)

Changed

get_address now returns an AddressInfo struct that includes the index and derefs to Address.

v0.7.0 - v0.6.0

Policy

Changed

Removed fill_satisfaction method in favor of enum parameter in extract_policy method

Added

Timelocks are considered (optionally) in building the satisfaction field

Wallet

• Changed Wallet::{sign, finalize_psbt} now take a &mut psbt rather than consuming it.
• Require and validate non_witness_utxo for SegWit signatures by default, can be adjusted with SignOptions
• Replace the opt-in builder option force_non_witness_utxo with the opposite only_witness_utxo. From now on we will provide the non_witness_utxo, unless explicitly asked not to.

v0.6.0 - v0.5.1

Misc

Changed

• New minimum supported rust version is 1.46.0
• Changed AnyBlockchainConfig to use serde tagged representation.

Descriptor

Added

• Added ability to analyze a PSBT to check which and how many signatures are already available

Wallet

Changed

• get_new_address() refactored to get_address(AddressIndex::New) to support different get_address() index selection strategies

Added

• Added get_address(AddressIndex::LastUnused) which returns the last derived address if it has not been used or if used in a received transaction returns a new address
• Added get_address(AddressIndex::Peek(u32)) which returns a derived address for a specified descriptor index but does not change the current index
• Added get_address(AddressIndex::Reset(u32)) which returns a derived address for a specified descriptor index and resets current index to the given value
• Added get_psbt_input to create the corresponding psbt input for a local utxo.

Fixed

• Fixed coin_select calculation for UTXOs where value < fee that caused over-/underflow errors.

v0.5.1 - v0.5.0

Misc

Changed

• Pin hyper to =0.14.4 to make it compile on Rust 1.45

v0.5.0 - v0.4.0

Misc

Changed

• Updated electrum-client to version 0.7

Wallet

Changed

• FeeRate constructors from_sat_per_vb and default_min_relay_fee are now const functions

v0.4.0 - v0.3.0

Keys

Changed

• Renamed DerivableKey::add_metadata() to DerivableKey::into_descriptor_key()
• Renamed ToDescriptorKey::to_descriptor_key() to IntoDescriptorKey::into_descriptor_key()

Added

• Added an ExtendedKey type that is an enum of bip32::ExtendedPubKey and bip32::ExtendedPrivKey
• Added DerivableKey::into_extended_key() as the only method that needs to be implemented

Misc

Removed

• Removed the parse_descriptor example, since it wasn't demonstrating any bdk-specific API anymore.

Changed

• Updated bitcoin to 0.26, miniscript to 5.1 and electrum-client to 0.6

Added

• Added support for the signet network (issue #62)
• Added a function to get the version of BDK at runtime

Wallet

Changed

• Removed the explicit id argument from Wallet::add_signer() since that's now part of Signer itself
• Renamed ToWalletDescriptor::to_wallet_descriptor() to IntoWalletDescriptor::into_wallet_descriptor()

Policy

Changed

• Removed unneeded Result<(), PolicyError> return type for Satisfaction::finalize()
• Removed the TooManyItemsSelected policy error (see commit message for more details)

v0.3.0 - v0.2.0

Descriptor

Changed

• Added an alias DescriptorError for descriptor::error::Error
• Changed the error returned by descriptor!() and fragment!() to DescriptorError
• Changed the error type in ToWalletDescriptor to DescriptorError
• Improved checks on descriptors built using the macros

Blockchain

Changed

• Remove BlockchainMarker, OfflineClient and OfflineWallet in favor of just using the unit type to mark for a missing client.
• Upgrade tokio to 1.0.

Transaction Creation Overhaul

The TxBuilder is now created from the build_tx or build_fee_bump functions on wallet and the final transaction is created by calling finish on the builder.

• Removed TxBuilder::utxos in favor of TxBuilder::add_utxos
• Added Wallet::build_tx to replace Wallet::create_tx
• Added Wallet::build_fee_bump to replace Wallet::bump_fee
• Added Wallet::get_utxo
• Added Wallet::get_descriptor_for_keychain

add_foreign_utxo

• Renamed UTXO to LocalUtxo
• Added WeightedUtxo to replace floating (UTXO, usize).
• Added Utxo enum to incorporate both local utxos and foreign utxos
• Added TxBuilder::add_foreign_utxo which allows adding a utxo external to the wallet.

CLI

Changed

• Remove cli.rs module, cli-utils feature and repl.rs example; moved to new bdk-cli repository

v0.2.0 - 0.1.0-beta.1

Project

Added

• Add CONTRIBUTING.md
• Add a Discord badge to the README
• Add code coverage github actions workflow
• Add scheduled audit check in CI
• Add CHANGELOG.md

Changed

• Rename the library to bdk
• Rename ScriptType to KeychainKind
• Prettify README examples on github
• Change CI to github actions
• Bump rust-bitcoin to 0.25, fix Cargo dependencies
• Enable clippy for stable and tests by default
• Switch to "mainline" rust-miniscript
• Generate a different cache key for every CI job
• Fix to at least bitcoin ^0.25.2

Fixed

• Fix or ignore clippy warnings for all optional features except compact_filters
• Pin cc version because last breaks rocksdb build

Blockchain

Added

• Add a trait to create Blockchains from a configuration
• Add an AnyBlockchain enum to allow switching at runtime
• Document AnyBlockchain and ConfigurableBlockchain
• Use our Instant struct to be compatible with wasm
• Make esplora call in parallel
• Allow to set concurrency in Esplora config and optionally pass it in repl

Fixed

• Fix receiving a coinbase using Electrum/Esplora
• Use proper type for EsploraHeader, make conversion to BlockHeader infallible
• Eagerly unwrap height option, save one collect

Changed

• Simplify the architecture of blockchain traits
• Improve sync
• Remove unused varaint HeaderParseFail

CLI

Added

• Conditionally remove cli args according to enabled feature

Changed

• Add max_addresses param in sync
• Split the internal and external policy paths

Database

Added

• Add AnyDatabase and ConfigurableDatabase traits

Descriptor

Added

• Add a macro to write descriptors from code
• Add descriptor templates, add DerivableKey
• Add ToWalletDescriptor trait tests
• Add support for sortedmulti in descriptor!
• Add ExtractPolicy trait tests
• Add get_checksum tests, cleanup tests
• Add descriptor macro tests

Changes

• Improve the descriptor macro, add traits for key and descriptor types

Fixes

• Fix the recovery of a descriptor given a PSBT

Keys

Added

• Add BIP39 support
• Take ScriptContext into account when converting keys
• Add a way to restrict the networks in which keys are valid
• Add a trait for keys that can be generated
• Fix entropy generation
• Less convoluted entropy generation
• Re-export tiny-bip39
• Implement GeneratableKey trait for bitcoin::PrivateKey
• Implement ToDescriptorKey trait for GeneratedKey
• Add a shortcut to generate keys with the default options

Fixed

• Fix all-keys and cli-utils tests

Wallet

Added

• Allow to define static fees for transactions Fixes #137
• Merging two match expressions for fee calculation
• Incorporate RBF rules into utxo selection function
• Add Branch and Bound coin selection
• Add tests for BranchAndBoundCoinSelection::coin_select
• Add tests for BranchAndBoundCoinSelection::bnb
• Add tests for BranchAndBoundCoinSelection::single_random_draw
• Add test that shwpkh populates witness_utxo
• Add witness and redeem scripts to PSBT outputs
• Add an option to include PSBT_GLOBAL_XPUBs in PSBTs
• Eagerly finalize inputs

Changed

• Use collect to avoid iter unwrapping Options
• Make coin_select take may/must use utxo lists
• Improve CoinSelectionAlgorithm
• Refactor Wallet::bump_fee()
• Default to SIGHASH_ALL if not specified
• Replace ChangeSpendPolicy::filter_utxos with a predicate
• Make 'unspendable' into a HashSet
• Stop implicitly enforcing manaul selection by .add_utxo
• Rename DumbCS to LargestFirstCoinSelection
• Rename must_use_utxos to required_utxos
• Rename may_use_utxos to optional_uxtos
• Rename get_must_may_use_utxos to preselect_utxos
• Remove redundant Box around address validators
• Remove redundant Box around signers
• Make Signer and AddressValidator Send and Sync
• Split send_all into set_single_recipient and drain_wallet
• Use TXIN_DEFAULT_WEIGHT constant in coin selection
• Replace must_use with required in coin selection
• Take both spending policies into account in create_tx
• Check last derivation in cache to avoid recomputation
• Use the branch-and-bound cs by default
• Make coin_select return UTXOs instead of TxIns
• Build output lookup inside complete transaction
• Don't wrap SignersContainer arguments in Arc
• More consistent references with 'signers' variables

Fixed

• Fix signing for ShWpkh inputs
• Fix the recovery of a descriptor given a PSBT

Examples

Added

• Support esplora blockchain source in repl

Changed

• Revert back the REPL example to use Electrum
• Remove the magic alias for repl
• Require esplora feature for repl example

Security

• Use dirs-next instead of dirs since the latter is unmantained

0.1.0-beta.1 - 2020-09-08

Blockchain

Added

• Lightweight Electrum client with SSL/SOCKS5 support
• Add a generalized "Blockchain" interface
• Add Error::OfflineClient
• Add the Esplora backend
• Use async I/O in the various blockchain impls
• Compact Filters blockchain implementation
• Add support for Tor
• Impl OnlineBlockchain for types wrapped in Arc

Database

Added

• Add a generalized database trait and a Sled-based implementation
• Add an in-memory database

Descriptor

Added

• Wrap Miniscript descriptors to support xpubs
• Policy and contribution
• Transform a descriptor into its "public" version
• Use miniscript::DescriptorPublicKey

Macros

Added

• Add a feature to enable the async interface on non-wasm32 platforms

Wallet

Added

• Wallet logic
• Add assume_height_reached in PSBTSatisfier
• Add an option to change the assumed current height
• Specify the policy branch with a map
• Add a few commands to handle psbts
• Add hd_keypaths to outputs
• Add a TxBuilder struct to simplify create_tx()'s interface
• Abstract coin selection in a separate trait
• Refill the address pool whenever necessary
• Implement the wallet import/export format from FullyNoded
• Add a type convert fee units, add Wallet::estimate_fee()
• TxOrdering, shuffle/bip69 support
• Add RBF and custom versions in TxBuilder
• Allow limiting the use of internal utxos in TxBuilder
• Add force_non_witness_utxo() to TxBuilder
• RBF and add a few tests
• Add AddressValidators
• Add explicit ordering for the signers
• Support signing the whole tx instead of individual inputs
• Create a PSBT signer from an ExtendedDescriptor

Examples

Added

• Add REPL broadcast command
• Add a miniscript compiler CLI
• Expose list_transactions() in the REPL
• Use MemoryDatabase in the compiler example
• Make the REPL return JSON