CHANGELOG.md

Change Log

v0.7.0

• Taproot-based OP_RETURN commitments
• New LNPBP-4 multi-protocol commitments based on merkle trees (support for using RGB alongside other client-side-validation protocols)
• State transition bundling for multi-participant transactions (required for LN, pay/coinjoin)
• Data containers (binary data for NFTs etc)
• Support for arbitrary rich data in contract state with a new schema for representing hierarchies of such data structures.

v0.5.0

• Separation of specific schemata into independent libraries
• Introduction of AluVM virtual machine
• Bulletproofs data removed from client-side commitments
• Refactored schema type system

v0.4.x patches

• 0.4.3: Fixing seal_definition old-way of sorting seals before they were held in Vec (and BTreeSet was used instead). This allows to validate multi-output transition history
• 0.4.4: Fixing broken upstream dependency breaking change in zeroize crate

v0.4.0

• Disclosures
• Improved concealment procedures; fixed node id mutability issue
• Reveal-merge procedure
• PSBT anchor processing refactoring & multiple bug fixes
• Improved commit-encoding and consensus-commit procedures
• Improved owned rights type system
• RGB20: asset data representation refactoring
• RGB20: removed deprecated LNPBP-37 invoicing
• RGB20: transfer API improvements

v0.3.1

• Lightning encoding for RGB types used in lightning messages
• Added missed StrictEncoding derives
• Consignment ids & bech32 representation

v0.3.0

• RGB Core Library is extracted and externalized from LNP/BP Core Library
• Serde encoding fixes (proper use of serde_as for wrapped types)
• BIP32 & descriptor enhancements
• Rust bitcoin 0.26 & Miniscript 5.0 migration
• More robust PSBT processing

v0.2.2

• Fixed PSBT key serialization issue during commitment procedure

v0.2.1

• Fixing serde to use Bech32 encoding for ContractId and SchemaId types

v0.2.0

No changes since RC2

Changes since v0.1

• Epic: refactoring of LNP protocols and services crate
• Epic: initial implementation of generalized lightning network
• Epic: lightning network specific encodings and derives
• CI covering different mobile & desktop targets

v0.2.0-rc.2

• New tagged hash implementation defaulting to Bech32 encoding for ContractId
• Using amplify and amplify_derive v2.4

v0.2.0-rc.1

• Fix for the broken tokio upstream dependency breaking issue
• Fix for zero-balance overflow in case of empty arguments
• Eq implementation for Schema object

v0.2.0-beta.3

• Multiple BIP-32 improvements on top of rust-bitcoin functionality
• Better CI
• Android/iOS/Windows/MacOs build fixes
• AnchorId strict encoding
• Fixed issue with broken serde_with macro (pinned older version in Cargo.toml)
• More collection types supporting AutoConceal

v0.2.0-beta.2

LNP module

• Noise handshake
• Abstract state channels
• Payment channels
• Channel extensibility framework
• BOLT3 transaction structure for payment channels
• Additional LN peer messages supporting RGB

BP module

• Lexicographic orderings (BIP96) for transactions, PSBTs, inputs and outputs

v0.2.0-beta.1

LNP/BP Core Library

• LN messaging & LNPWP: Lightning network peer wire protocol (BOLT-1pt2, BOLT-2)
• BOLT-8 noise encryptor and handshake implementation
• Improvements to LN-specific data types
• LNP socket and node addressing large-scale refactoring
• More serde and strict encoding implementations for data types across the library

LNP/BP Derivation Library

• Implementation of strict derive macros for enums

LNP/BP Services Library

• Debugging and display logging improvements with LNP/BP Services library
• ESB functionality improvements in LNP/BP Services libraru

v0.2.0-alpha.3

• Improvements to the ESB and RPC service architectures
• Improvements to debug logging and displaying of LN messages and service information

v0.2.0-alpha.2

• Enterprise system bus service type with peer addressing
• Complete set of LN peer messages from BOLT-1 and BOLT-2
• Improved logging and error handling
• Improved LNP node address conversions

v0.2.0-alpha.1

This is alpha release with some major refactoring in LNP mod adding support for LN and Internet2 protocols.

• Refactoring of LNP protocol stack; introduction of Internet2 architacture
• Services crate implementing common client/server and other node architecture patterns
• Basic implementation of core Lightning network data structures

v0.1.0

Library overview

• Paradigms: generic APIs for L1/L3 best practices
  • Client-side validation
  • Single-use-seals
  • Strict encoding
• Bitcoin protocol: extensions to bitcoin crate and L2/L3 APIs
  • Deterministic bitcoin commitments (DBC) based on LNPBP1-4 standard
  • Tagged hashes: additional procedures for working with Tapproot-style tagged hashes
  • Short bitcoin identifiers based on LNPBP-4 standard
  • Resolver API for requesting transaction graph using providers (like Bitcoin Core RPC, Electrum Server API etc)
  • Chains, chain parameters and universal asset identifiers
  • Script types for differentiating script cycle through different transaction parts
  • Transaction-output-based single-use-seals: bitcoin-specific implementation of single-use-seals
• RGB: confidential smart-contract system for Bitcoin & Lightning Network based on client-side validation paradigm (LNPBP11-13 standards)
  • Schema: structure defining contract creation and evolution rules and restrictions
  • Contracts: data types for contract lifecycle
  • Scripting with embedded procedures for fungible assets
    The library implements RGB Core v1 release candidate set of standards
• Lightning networking protocol: generalized P2P and RPC networking APIs based on the original Lightning standard; early preview
  • Universal P2P node ids supporting IPv4, IPv6, Onion v2 and v3 addresses and public keys
  • Feature vectors for defining and workinf with set of feature bits
  • LNP networking with ZMQ sockets for RPC interfaces

Major changes since RC2

• Support for Rust stable and MSRV reduction to 1.41.1
• Custom forks for upstream bitcoin-related dependencies are changed onto the latest publicly-released versions

Breaking changes since RC2

• Updated taproot-based hashed tag system (BIP-340) according to the most recent specs.
• RGB Amount renamed into AtomicValue
• RGB amount mod renamed into value
• RGB seal definitions and related structures are now Copy and returned by value

v0.1.0-rc.2

Breaking changes:

• Changed embedded procedure names for RGB VM
• Removed requirement for PSBT to contain fee key in RGB anchor creation (it needs to be a properly constructed PSBT with witness_utxo/non_witness_utxo data)

Other changes:

• More embedded procedures for RGB VM
• Schema serde serialization (YAML, JSON etc)
• Serde serialization for all RGB contract structures
• Strict encoding and decoding of Curve25519 public keys and Ed25519 signatures
• Implementation of Curve25519 public keys and Ed25519 signatures as RGB state and metadata
• Bech types for Pedersen commitments, Bulletproofs, Curve25519 data
• Tweaking factor is added into PSBT information during anchor creation
• Added bitcoin protocol resolvers API

v0.1.0-rc.1

Breaking changes:

• RGB protocol & schema versioning with feature bits
• Consignment versioning
• Changed Bech32 encodings of RGB data structures; added deflation encoding
• Implemented RGB public state extensions
• Refactored LNP addressing and it's encoding
• Completed Tor v2 and v3 addresses support
• RGB data structures naming refactoring
• Changed bulletproofs commitments which will enable future aggregation
• Introduced Chain and ChainParam types instead of old network versioning

Other changes:

• Test coverage >70%
• Code docs >50%

v0.1.0-beta.4

Breaking changes:

• Updated upstream crates (bitcoin, bitcoin_hashes, secp256k1, grin_secp256k1zpk, miniscript, lightning) with many PRs merged
• EmbedCommitVerify now can mutate container data (used for returning tweaking factors)
• Upgrading rand version to the most recent one (blocked previously by grin_secp256k1zpk dependency)
• Changied txout seals to use u32 vouts instead of u16
• Changed txout blinding factor to be u64 instead of u32

Other changes:

• Test coverage >50% (zero-knowledge functionality & RGB contracts structures)
• Returning tweaking factors
• Minimal support for Tor V2 addresses; improved internet address parsing

v0.1.0-beta.3

Breaking changes

• Single-use-seals blinding factor changed from 32-bit to 64-bit of entropy
• Transaction output indexes in single-use-seal definitions are now 32-bit, as in Bitcoin Core / rust-bitcoin (previously were 16-bit)

New features

• Initial Tor V2 address support
• Test cases for BP mod strict encoding

v0.1.0-beta.2

Features overview

• Complete validation workflow with new Validator object
• Virtual machines for RGB contracts (interface + embedded VM)
• Consignment now has a version field, so in the future more space-saving variants can be created (like removing txid from anchors and using short universal bitcoin IDs when BP node adoption will increase)
• Anchor contains txid field; so validation can be performed with just Bitcoin Core (no Electrum or BP node is required). This also speeded up validation performance significantly.

Breaking changes

• Change of TransitionId hash tag value (previously-generated transition ids will be invalid)
• Change of GenesisId hash tag value (previously-generated contract/assets ids will be invalid)
• TransitionId type is replaced with NodeId
• NodeId and ContractId are now equal by value; ContractId is NodeId wrapper
• ancestors() method moved from Transition to Node trait; genesis returns an empty array
• Consignment endpoints contain NodeId information