4.1.0

New features

• Add support for JSON-style transaction metadata (see documentation for more detail)
• Improved error handling on non-WASM targets
• Remove wasm-bindgen as a dependency for non-WASM targets
• add a add_input function that takes an address and figures out how to handle it internally instead of having the user do it
• add a fee_for_input that says how much the fee would increase by adding an input. This is useful for input selection since you can avoid adding inputs where the value of the input is less than the fee to add it.

4.0.0

Breaking Changes

• All the functions related to metadata have changed. (see below new feature for more)
• from_icarus_key now takes a Byron protocol magic instead of the Shelley network id as the parameter. To make sure users update which parameter is passed in, I changed the function name to icarus_from_key (ensure it's a static error since the function name changed instead of silently failing at runtime). This was needed for proper Shelley official testnet support

New features

• New NetworkInfo struct that contains the mainnet and testnet protocol magic & network id
• Now support custom transaction metadata libraries

Bug fixes

• ByronAddress now supports Byron Redeem and Byron Script addresses (previously it throw an error saying invalid address)

3.0.0

Breaking changes

• Address#to_bech32 now matches CIP5. Previously we always used addr as the bech32 prefix, but now we use addr, addr_test, stake, stake_test depending on the situation
• (De)serialization order of maps now follows insertion order which also now matches iteration order. This may lead to transactions containing maps (like MIR certificates) to generate a different binary from previous versions of our library. These transactions will still be accepted by the Cardano network (no impact on you unless you relied on a specific ordering of keys in the binary encoding of a map or a specific iteration order). You can learn more here

Bug fix

• VRF key hash deserialization fixed (previously throwed an error)

2.3.1

Bug fix

• fixed panic in Bip32PublicKey#chaincode function

2.3.0

New feature

• Expose attributes in ByronAddress

2.2.0

New features

• Added conversion from & to 128-byte xprv (#69 )

Breaking changes

• Removed the BigNum#new and BigNum#unwrap that handled Javascript BigInt directly. These functions caused problems on all build platforms that don't support JS BigInt yet (which is almost everything)

Chore

• Removed dependency on chain-libs. The code we need from it is instead inlined into the repository.
• Package is now available as an asm.js package for platforms that don't support WebAssembly (old devices mostly)

2.1.0

New features

• Added fee_for_output function to TransactionBuilder. This calculate how much the fee would increase if you added a given output
• Added byron_protocol_magic to ByronAddress which allows to easily extract the Byron protocol magic from a Byron-era address (we previously only supported calculating the Shelley network id)
• Added support for creating and parsing update proposals from inside a TransactionBody. This includes adding the following new structs:
  • GenesisHash
  • Nonce
  • ProposedProtocolParameterUpdates
  • ProtocolParamUpdate
  • ProtocolVersion
  • ProtocolVersions
  • Update
• Added support for parsing entire blocks. This includes adding the following new structs:
  • Block
  • BlockHash
  • Header
  • HeaderBody
  • KESSignature
  • KESVKey
  • MapTransactionIndexToTransactionMetadata
  • OperationalCert
  • TransactionBodies
  • TransactionWitnessSets
  • VRFCert
  • VRFVKey

Bug fixes

• Fix edge cases in TransactionBuilder's build function. Notably
  • Transactions where sum(input) == sum(output) were rejected. They are now accepted
  • Transactions change calculation required at least 1 lovelace leeway to add change. They can now be exact (an > changed to an >=)
  • Transactions that fail only because there isn't enough input to cover the deposit now properly fail with Insufficient input in transaction instead of a Rust panic.
• Fix binary encoding of MIR certificates. MIR certificates created by our library had the wrong binary encoding. This shouldn't affect anybody since probably nobody is creating MIR certificates with our library.
• Fix binary encoding of TransactionBody. Transactions containing update proposals would have the update proposal binary dropped by our library. This shouldn't affect anybody since probably nobody is creating update proposals with our library.

Chore

• Began migrating to ReadTheDocs for documentation (still very much a work in progress though)

2.0.0

Breaking changes

• Remove get_fee_or_calc (replaced with get_fee_if_set which returns undefined if the fee is not set)
• Remove estimate_fee (replaced with min_fee which always returns the min fee even if a higher fee has been explicitly set)
• Address to_bech32 now takes an optional bech32 prefix as an argument

Bug Fixes

• Fix deposit calculation being wrong for transaction that contained key registration or pool registration certificates

New features

• Add get_deposit to TransactionBuilder and TransactionBody

1.2.0

New features

• Adds a keys iterator to MapTransactionMetadatumToTransactionMetadatum, MoveInstantaneousReward, TransactionMetadata and Withdrawals

Bug fixes

• Fixes typo (stake_ponter -> stake_pointer)

1.1.0

New features

• Adds missing getters on the Pointer class (slot, tx_index, cert_index)