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Changelog

All notable changes to this project will be documented in this file. This project adheres to Semantic Versioning.

Unreleased

11.0.0 - 2023-03-29

Breaking changes

  • Muxed accounts and ID memos can be used in the BuildChallengeTx() and ReadChallengeTx() SEP-10 utilitiy functions to identify users of shared Stellar accounts. (#4746)
    • BuildChallengeTx():
      • Muxed account addresses can be passed as the clientAccountID.
      • Adds an additional parameter of type *txnbuild.MemoID. Memos cannot be specified if the clientAccoutID id a muxed account address.
    • ReadChallengeTx():
      • Muxed account addresses may be returned as the clientAccountID.
      • Adds an additional return value of type *txnbuild.MemoID.

10.0.0 - 2022-04-18

  • Adds support for Protocol 19 transaction preconditions (CAP-21).

Breaking changes

  • There are many new ways for a transaction to be (in)valid (see the new Preconditions structure), and the corresponding breaking change is in how transactions are built:
 tx, err := NewTransaction(TransactionParams{
     SourceAccount: someAccount,
     // ... other parameters ...
-    Timebounds:    NewTimeout(5),
+    Preconditions: Preconditions{TimeBounds: NewTimeout(5)},
 })

  • Timebounds has been renamed to TimeBounds, though a type alias remains.

  • A *TimeBounds structure is no longer considered valid (via Validate()) if it's nil. This further reinforces the fact that transactions need timebounds.

9.0.0 - 2022-01-10

  • Enable Muxed Accounts (SEP-23) by default (#4169):
    • Remove TransactionParams.EnableMuxedAccounts
    • Remove TransactionFromXDROptionEnableMuxedAccounts
    • Remove FeeBumpTransactionParams.EnableMuxedAccounts
    • Remove parameter withMuxedAccounts bool from all methods/functions.
    • Remove options ...TransactionFromXDROption parameter from TransactionFromXDR()
    • Rename SetOpSourceMuxedAccount() to (pre-existing) SetOpSourceAccount() which now accepts both G and M (muxed) account strkeys.
  • Use xdr.Price to represent prices in txnbuild instead of strings (#4167).

8.0.0-beta.0 - 2021-10-04

This release adds support for Protocol 18.

New features

  • GenericTransaction, Transaction, and FeeBumpTransaction now implement encoding.TextMarshaler and encoding.TextUnmarshaler.
  • New asset structures that conform to the new ChangeTrust and New assets:
  • Support for the core liquidity pool XDR types: LiquidityPoolId, LiquidityPoolParameters, LiquidityPoolDeposit, and LiquidityPoolWithdraw.
  • Support for the new asset structures: ChangeTrustAsset and TrustLineAsset.

Changes

  • There's now a 5-minute grace period to transaction.ReadChallengeTx's minimum time bound constraint (#3824).
  • Assets can now be liquidity pool shares (AssetTypePoolShare).
  • All asset objects can now be converted to the new ChangeTrustAsset and TrustLineAsset objects.
  • Assets can now be compared in accordance with the protocol, see their respective LessThan() implementations.

Breaking changes

  • ChangeTrust requires a ChangeTrustAsset.
  • RevokeSponsorship requires a TrustLineAsset when revoking trustlines.
  • RemoveTrustlineOp helper now requires a ChangeTrustAsset
  • validate*Asset helpers now require more-specific asset types.

v7.1.1 - 2021-06-25

Bug Fixes

  • Claimable balance IDs are now precomputed correctly (Transaction.ClaimableBalanceID(int)) even when the transaction's source account is a fully-muxed account (#3678).
  • Fix muxed account address parsing for account merge operation (#3722).

v7.1.0 - 2021-06-01

New features

  • Add Transaction.SequenceNumber() helper function to make retrieving the underlying sequence number easier (#3616).

  • Add Transaction.AddSignatureDecorated() helper function to make attaching decorated signatures to existing transactions easier (#3640).

Bug Fix

  • BaseFee in TransactionParams when calling NewTransaction is allowed to be zero because the fee can be paid by wrapping a Transaction in a FeeBumpTransaction (#3622).

v7.0.0 - 2021-05-15

Breaking changes

  • AllowTrustOpAsset was renamed to AssetCode, {Must}NewAllowTrustAsset was renamed to {Must}NewAssetCodeFromString.
  • Some methods from the Operation interface (BuildXDR(),FromXDR() and Validate()) now take an additional bool parameter (withMuxedAccounts) to indicate whether SEP23 M-strkeys should be enabled.

New features

  • Add support for Stellar Protocol 17 (CAP35): Clawback, ClawbackClaimableBalance and SetTrustlineFlags operations.
  • Add opt-in support for SEP23 M-strkeys for MuxedAccounts:
    • Some methods from the Operation interface (BuildXDR(),FromXDR() and Validate()) now take an additional bool parameter (withMuxedAccounts)
    • The parameters from NewFeeBumpTransaction() and NewTransaction() now include a new field (EnableMuxedAccounts) to enable M-strekeys.
    • TransactionFromXDR() now allows passing a TransactionFromXDROptionEnableMuxedAccounts option, to enable M-strkey parsing.

v6.0.0 - 2021-02-22

Breaking changes

  • Updates the SEP-10 helper function parameters to support SEP-10 v3.1.
    • The following functions added the webAuthDomain parameter:
      • BuildChallengeTx()
      • ReadChallengeTx()
      • VerifyChallengeTxThreshold()
      • VerifyChallengeTxSigners()
    • The webAuthDomain parameter is verified in the Read* and Verify* functions if it is contained in the challenge transaction, and is ignored if the challenge transaction was generated by an older implementation that does not support the webAuthDomain.
    • The webAuthDomain parameter is included in challenge transactions generated in the Build* function, and the resulting challenge transaction is compatible with SEP-10 v2.1 or greater.
  • Use strings to represent source accounts in Operation structs (#3393) see example below: 
    bumpSequenceOp := txnbuild.BumpSequence{BumpTo: 100, SourceAccount: "GB56OJGSA6VHEUFZDX6AL2YDVG2TS5JDZYQJHDYHBDH7PCD5NIQKLSDO"}
  • Remove TxEnvelope() functions from Transaction and FeeBumpTransaction to simplify the API. ToXDR() should be used instead of TxEnvelope() (#3377)

v5.0.1 - 2021-02-16

  • Fix a bug in ClaimableBalanceID() where the wrong account was used to derive the claimable balance id (#3406)

v5.0.0 - 2020-11-12

Breaking changes

  • Updates the SEP-10 helper function parameters and return values to support SEP-10 v3.0
    • The following functions replaced the homeDomain parameter with homeDomains (note: plural):
      • ReadChallengeTx()
      • VerifyChallengeTxThreshold()
      • VerifyChallengeTxSigners()
    • ReadChallengeTx() now returns a third non-error value: matchedHomeDomain

v4.2.0 - 2020-11-11

  • Add HashHex(), SignWithKeyString(), SignHashX(), and AddSignatureBase64() functions back to FeeBumpTransaction (#3199).

v4.1.0 - 2020-10-16

  • Add helper function ParseAssetString(), making it easier to build an Asset structure from a string in canonical form and check its various properties (#3105).

  • Add helper function Transaction.ClaimableBalanceID(), making it easier to calculate balance IDs for claimable balances without actually submitting the transaction (#3122).

  • Add support for SEP-10 v2.1.0.

    • Remove verification of home domain. (Will be reintroduced and changed in a future release.)
    • Allow additional manage data operations that have source account as the server key.

v4.0.1 - 2020-10-02

  • Fixed bug in TransactionFromXDR() which occurs when parsing transaction XDR envelopes which contain Protocol 14 operations.

v4.0.0 - 2020-09-29

Added support for the new operations in Protocol 14. Now it is possible to:

  • Create and claim claimable balance operations (see CAP-23) with the [Create|Claim]ClaimableBalance structures and their associated helpers
  • Begin/end sponsoring future reserves for other accounts (see CAP-33) with the [Begin|End]SponsoringFutureReserves operations
  • Revoke sponsorships of various objects with the RevokeSponsorship operation (see CAP-33).

Also:

  • Added support for Go 1.15.

Breaking changes

  • Dropped support for Go 1.13.
  • Add support for SEP-10 v2.0.0.
    • Replace BuildChallengeTx's anchorName parameter with homeDomain.
    • Add homeDomain parameter to ReadChallengeTx, VerifyChallengeTxThreshold, and VerifyChallengeTxSigners.

v3.2.0 - 2020-06-18

  • txnbuild now generates V1 transaction envelopes which are only supported by Protocol 13 (#2640)
  • Add ToXDR() functions for Transaction and FeeBumpTransaction instances which return xdr transaction envelopes without errors (#2651)

v3.1.0 - 2020-05-14

  • Fix bug which occurs when parsing xdr offers with prices that require more than 7 decimals of precision (#2588)
  • Add AddSignatureBase64 function to both Transaction and FeeBumpTransaction objects for adding a base64-encoded signature. #2586

v3.0.1 - 2020-05-11

  • Fix bug which occurs when parsing transactions with manage data operations containing nil values (#2573)

v3.0.0 - 2020-04-28

Breaking changes

  • The Account interface has been extended to include GetSequenceNumber() (int64, error). Also, IncrementSequenceNumber() now returns an (int64, error) pair instead of a (xdr.SequenceNumber, error) pair.
  • Refactor workflow for creating and signing transactions. Previously, you could create a transaction envelope by populating a Transaction instance and calling the Build() function on the Transaction instance.

Transaction is now an opaque type which has accessor functions like SourceAccount() SimpleAccount, Memo() Memo, etc. The motivation behind this change is to make Transaction more immutable. Here is an example of how to use the new transaction type:

	kp := keypair.MustParse("SBPQUZ6G4FZNWFHKUWC5BEYWF6R52E3SEP7R3GWYSM2XTKGF5LNTWW4R")
	client := horizonclient.DefaultTestNetClient
	ar := horizonclient.AccountRequest{AccountID: kp.Address()}
	sourceAccount, err := client.AccountDetail(ar)
	check(err)

	op := txnbuild.Payment{
		Destination: "GCCOBXW2XQNUSL467IEILE6MMCNRR66SSVL4YQADUNYYNUVREF3FIV2Z",
		Amount:      "10",
		Asset:       NativeAsset{},
	}

	tx, err := txnbuild.NewTransaction(
		txnbuild.TransactionParams{
			SourceAccount:        &sourceAccount,
			// If IncrementSequenceNum is true, NewTransaction() will call `sourceAccount.IncrementSequenceNumber()`
			// to obtain the sequence number for the transaction.
			// If IncrementSequenceNum is false, NewTransaction() will call `sourceAccount.GetSequenceNumber()`
			// to obtain the sequence number for the transaction.
			IncrementSequenceNum: true,
			Operations:           []Operation{&op},
			BaseFee:              MinBaseFee,
			Timebounds:           NewInfiniteTimeout(),
		},
	)
	check(err)

	tx, err = tx.Sign(network.TestNetworkPassphrase, kp.(*keypair.Full))
  • TransactionFromXDR now has the following signature TransactionFromXDR(txeB64 string) (*GenericTransaction, error). A GenericTransaction is a container which can be unpacked into either a Transaction or a FeeBumpTransaction.
  • BuildChallengeTx now returns a Transaction instance instead of the base 64 string encoding of the SEP 10 challenge transaction.
  • VerifyChallengeTx has been removed. Use VerifyChallengeTxThreshold or VerifyChallengeTxSigners instead.

Add

  • Add NewFeeBumpTransaction(params FeeBumpTransactionParams) (*FeeBumpTransaction, error) function for creating fee bump transactions. Note that fee bump transactions will only be accepted by Stellar Core once Protocol 13 is enabled.

Updates

  • AllowTrust supports CAP0018 Fine-Grained Control of Authorization by exposing a AuthorizeToMaintainLiabilities boolean field.
  • ReadChallengeTx will reject any challenge transactions which are fee bump transactions.
  • ReadChallengeTx will reject any challenge transactions which contain a MuxedAccount with a memo ID.

Remove

  • Dropped support for Go 1.12.

v1.5.0 - 2019-10-09

  • Dropped support for Go 1.10, 1.11.
  • Add support for stellar-core protocol 12, which implements CAP-0024 ("Make PathPayment Symmetrical"). (#1737).
  • Deprecated: Following CAP-0024, the operation txnbuild.PathPayment is now deprecated in favour of txnbuild.PathPaymentStrictReceive, and will be removed in a future release. This is a rename - the new operation behaves identically to the old one. Client code should be updated to use the new operation.
  • Add: New operation txnbuild.PathPaymentStrictSend allows a path payment to be made where the amount sent is specified, and the amount received can vary.

v1.4.0 - 2019-08-09

  • Add BuildChallengeTx function for building SEP-10 challenge transaction(#1466).
  • Add VerifyChallengeTx method for verifying SEP-10 challenge transaction(#1530).
  • Add TransactionFromXDR function for building txnbuild.Transaction struct from a base64 XDR transaction envelope#1329.
  • Fix bug that allowed multiple calls to Transaction.Build increment the number of operations in a transaction #1448.
  • Add Transaction.SignWithKeyString helper method for signing transactions using secret keys as strings.(#1564)

v1.3.0 - 2019-07-08

  • Add support for getting the hex-encoded transaction hash with Transaction.HashHex method.
  • TransactionEnvelope is now available after building a transaction(Transaction.Build). Previously, this was only available after signing a transaction. (#1376)
  • Add support for getting the TransactionEnvelope struct with Transaction.TxEnvelope method (#1415).
  • AllowTrust operations no longer requires the asset issuer, only asset code is required (#1330).
  • Transaction.SetDefaultFee method is deprecated and will be removed in the next major release (#1221).
  • Transaction.TransactionFee method has been added to get the fee that will be paid for a transaction.
  • Transaction.SignHashX method adds support for signing transactions with hash(x) signature types.

v1.2.0 - 2019-05-16

  • In addition to account responses from horizon, transactions and operations can now be built with txnbuild.SimpleAccount structs constructed locally (#1266).
  • Added MaxTrustlineLimit which represents the maximum value for a trustline limit (#1265).
  • ChangeTrust operation with no Limit field set now defaults to MaxTrustlineLimit (#1265).
  • Add support for building ManageBuyOffer operation (#1165).
  • Fix bug in ChangeTrust operation builder (1296).

v1.1.0 - 2019-02-02

  • Support for multiple signatures (#1198)

v1.0.0 - 2019-04-26

  • Initial release