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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

2.10.0 2023-07-20

Changes

  • Enabled Shanghai Ethereum hard fork support by @mandreyel. (#773)
  • Added ability to pause and resume the core functionality of the contract by @Casuso. (#779)
  • Added function call keys to be used with relayers by @aleksuss. (#792)

2.9.3 2023-07-19

Changes

  • It is now possible for anyone to call the contract method deploy_upgrade by @joshuajbouw. (#794)

2.9.2 2023-06-22

Fixes

2.9.1 2023-05-11

Changes

  • Removed unused state variable bridge_prover_id by @birchmd. (#749)
  • modexp has been improved to be greatly faster than before by @birchmd. (#757)

Fixes

  • Fixed an issue where the owner could call new multiple times by [@lempire123]. (#733)
  • Fixed an issue with deploy_upgrade where the upgrade index isn't cleared by [@lempire123]. (#741)

2.9.0 2023-04-05

Added

  • Enabled XCC for mainnet release by @birchmd. (#694)
  • Added set_owner contract method which sets the owner of the contract by @hskang9. (#690)
  • New variant of submit function submit_with_args which accepts additional arguments along with the transaction such as the max gas price a user is ready to pay by @aleksuss. (#696)
  • Added the ability to create and fund XCC sub-accounts from external NEAR accounts by @birchmd. (#735)

Changes

  • Replaced rjson with serde_json by @aleksuss. (#677)
  • Changed owner intended contract methods to now require owner or the contract itself by @hskang9. (#676)

Fixes

  • Fixed nonce incorrectly being incremented on an out of fund failure by @joshuajbouw. (#671)
  • Fixed a check in promise results before executing cross contract calls (XCC) callbacks by @birchmd. (#693)
  • Fixed a reachable panic in receive_erc20_tokens by @0x3bfc. (#709)
  • Fixed a lack of minimum size checks when instantiating a new EthGas object by [@lempire123]. (#722)
  • Fixed a lack of division by 0 checks in EthGas::Div() by [@lempire123]. (#718)
  • Fixed the validation of the return of exports:storage_remove by @0x3bfc. (#712)
  • Fixed missing account validations of NEAR account IDs by @0x3bfc. (#703)
  • Fixed a reachable panic in the exitToNear and exitToEthereum precompiles if the input amount is greater than 1^128 when cast from a U256 to u128 by @0x3bfc. (#681)
  • Fixed a reachable panic in modExp due to arithmetic overflow by @0x3bfc. (#688)
  • Fixed the ability attaching values to Aurora specific precompiles, this no longer is possible, by @0x3bfc. (#714)
  • Fixed a return error if an ecrecover signature length is not exactly 65 by @0x3bfc. (#717)
  • Fixed size checks on input array passed to exitToNear and exitToEthereum precompiles by @0x3bfc. (#684)
  • Fixed missing gas costs in exitToNear and exitToEthereum precompiles by [@lempire123]. (#687)
  • Fixed a reachable panic due to out of memory in the modExp precompile by @0x3bfc. (#689)
  • Fixed an assurance that the sender_id has a balance greater than the amount in ft_transfer_call by @0x3bfc. (#708)
  • Fixed returning 0x when a length cannot be cast as usize instead of returning an error in the modExp precompile by @birchmd. (#737)
  • Miscellaneous minor fixes by @0x3bfc. (#738)

[2.8.1] 2022-12-07

[2.8.1] 2022-12-07

Changes

  • Performance improvement (approximately 5% reduction in NEAR gas usage) by @birchmd. (#645)

Fixes

2.8.0 2022-11-15

Added

  • New functions pause_precompiles and resume_precompiles to allow pausing/unpausing the exit precompiles on Aurora by @RomanHodulak. (#588)
  • Reproducible build in Docker by @RomanHodulak. (#633)

Fixes

  • Update to latest SputnikVM by @birchmd (fixes some security issues including a potential call stack overflow and incorrect is_static indicator in exit precompiles). (#628)
  • Minor fixes for the XCC functionality by @birchmd. (#610 #616 #622)
  • Fix bn256 regression by @joshuajbouw. (#637)

2.7.0 2022-08-19

Added

  • Get promise results precompile at address on testnet 0x0a3540f79be10ef14890e87c1a0040a68cc6af71 by @birchmd. (#575)
  • Cross-contract calls to NEAR contracts are now available for testnet by @birchmd and @mfornet. (#560)

Changes

Fixes

  • Fixed an issue where a transaction can panic on an empty input by @birchmd. (#573)
  • Return the correct value while using the get_bridge_prover method by @birchmd. (#581)

2.6.1 2022-06-23

Fixes

2.6.0 2022-06-08

Added

  • A precompile at the address 0x536822d27de53629ef1f84c60555689e9488609f was created to expose the prepaid gas from the NEAR host function by @birchmd. (#479)

Changes

  • A better implementation of caching was added to reduce the overall gas costs of storage reads resulting in roughly a 15% - 18% reduction of gas costs by @birchmd. (#488)

Fixes

  • If the v byte of secp256k1 is incorrect, it now returns correctly an empty vector by @RomanHodulak. (#513)
  • Original ETH transactions which do not contain a Chain ID are allowed again to allow for use of EIP-1820 by @joshuajbouw. (#520)
  • Ecrecover didn't reject r, s values larger than curve order by @RomanHodulak. (#515)
  • The predecessor account ID was failing in the view method by @birchmd. (#477)
  • Ecrecover was incorrectly setting the NEAR ecrecover malleability flag by @birchmd and @joshuajbouw. (#474)

2.5.3 2022-04-27

Fixes

2.5.2 2022-03-22

Removed

  • New Aurora-only precompiles removed since they do not work in NEAR view calls. This will need to be fixed and they will be re-added to a future release.

2.5.1 - 2022-03-16

Fixes

  • Fix for bug in checking address exists introduced in the v2.5.0 release by @birchmd. (#469)

Added

  • New Aurora-only precompiles for checking the current and predecessor NEAR account IDs by @birchmd. (#462)

2.5.0 - 2022-03-09

Changes

Fixes

  • Bug fix for the behaviour of transactions to the zero address by @birchmd. (#458)

2.4.0 - 2022-02-16

Changes

  • Performance improvements by @birchmd and @matklad; the engine should now consume much less NEAR gas: (#427) (#438) (#439) (#445) (#446)
  • Security improvment: only Engine contract owner can use the deploy_upgrade method by @birchmd. (#410)
  • Bug fix: Engine now returns the error message in the case of a revert during an EVM contract deploy, previously it would always return an address (even when the deploy failed) by @birchmd. (#424)
  • Security improvment: Engine will no longer accept EVM transactions without a chain ID as part of their signature by @birchmd. This should have no impact on users as all modern Ethereum tooling includes the chain ID. (#432)
  • Improvements to code quality by @mrLSD: (#386) (#387)
  • Improvements and additions to internal tests and benchmarks by @birchmd: (#408) (#415) (#429)

2.3.0 - 2021-12-10

Added

Changes

  • The gas limit for deposit and ft_on_transfer were changed as they were not attaching enough gas, as changed by @mrLSD. (#389)

Fixes

  • There was an issue with the original storage not actually being stored. Unfortunately, previous transactions can't be updated with this change. This has been fixed by @birchmd. (#390)
  • Call arguments were intended to have a value attached to them to make it equivalent to an ETH call. This was fixed in a backwards compatible manner by @andrcmdr, as reported by @birchmd. (#351 #309)

Removed

  • Betanet support was dropped and will no longer be supported by @joshuajbouw. (#388)

2.2.0 - 2021-11-09

Added

  • Depositing ETH from Ethereum to Aurora now allows an 0x prefix on the recipient address by @joshuajbouw. (#337)

2.1.0 - 2021-11-04

Fixed

2.0.2 - 2021-11-01

Added

Fixed

  • Show full address in logging transaction sender on submit by @birchmd. (#321)

2.0.1 - 2021-11-01

Added

2.0.0 - 2021-10-27

Added

  • Public method for computing Aurora blockhash at a given hight by @birchmd. (#303)

Changed

  • EVM logs returned in SubmitResult include the address the log originates from by @birchmd. (#299)
    • Note: this is a breaking change in the SubmitResult binary format.

Fixed

  • Precompile bug fixes by @birchmd. (#305, #306)
  • Update to latest rust-blockchain/evm version (fixes bug in JUMPI) EVM opcode by @birchmd. (#316)

1.7.0 - 2021-10-13

Changes

  • Add EVM events for exit precompiles by @birchmd

1.6.4 - 2021-09-29

Changes

  • Fix JSON formatting in ft_metadata method by @birchmd.
  • Fix a bug in block.timestamp (units should be seconds) by @birchmd.

1.6.3 - 2021-09-14

Changes

  • Revert the ERC-20 admin address changes for the time being by @joshuajbouw.

1.6.2 - 2021-09-13

Changes

  • Change the ERC-20 admin address to have a dedicated account by @sept-en.
  • Fix precompile promises that were broken in rust-blockchain/evm by @joshuajbouw and @birchmd.
  • Fix the return format of ft_balance_of by @joshuajbouw.

Removed

  • Remove Testnet balancing balance_evm_and_nep141 by @birchmd.

1.6.1 - 2021-08-23

Breaking changes

  • Update the view call to correctly return the Borsh serialization of TransactionStatus. Previously, it returned a string with the result of the transaction by name.

  • Change the ft_balance_of result as previously it returned a non-JSON string value 0. This has been fixed to return "0".

1.6.0 - 2021-08-13

Breaking changes

  • Change the transaction status of submit as running out of gas, funds, or being out-of-the-offset are not fatal errors but failed executions.

The submit call altered the SubmitResult object to the following format:

enum TransactionStatus {
    Succeed(Vec<u8>),
    Revert(Vec<u8>),
    OutOfGas,
    OutOfFund,
    OutOfOffset,
    CallTooDeep,
}

struct ResultLog {
    topics: Vec<[u8; 32]>,
    data: Vec<u8>,
}

struct SubmitResult {
    status: TransactionStatus, // above
    gas_used: u64,
    logs: Vec<ResultLog>,
}

1.5.0 - 2021-07-30

1.4.3 - 2021-07-08

1.4.2 - 2021-06-25

1.4.1 - 2021-06-23

1.4.0 - 2021-06-18

1.3.0 - 2021-06-17

1.2.0 - 2021-06-05

1.1.0 - 2021-05-28

1.0.0 - 2021-05-12