CHANGES.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

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

• Use NEAR host functions for alt bn256 precompile by @birchmd, @joshuajbouw, and @RomanHodulak. (#540)

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

• Fixed an issue with accounting being problematic with the total supply of ETH on Aurora as it could artificially deplete by @birchmd. (#536)
• Fixed the possibility of forging receipts to allow for withdrawals on the Rainbow Bridge by @birchmd, @mfornet, @sept-en and @joshuajbouw. Written by @birchmd.
• Fixed the ability the steal funds from those by setting a fee when receiving NEP-141 as ERC-20 by @birchmd, @mfornet, and @joshuajbouw. Written by @joshuajbouw.

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

• Fixed inflation vulnerability relating to ExitToNear and ExitToEthereum by @birchmd, @mfornet, and @joshuajbouw. Written by @birchmd.

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

• Performance improvement by @birchmd and @olonho: (#455) (#456)

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

• A precompile which exposes NEAR's random number generator was added by @mfornet as requested by @birchmd. (#368 #297)
• London hard fork support was added by @birchmd. (#244)

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

• Bug in ft_transfer_call and ft_resolve_transfer by @birchmd and @mrLSD. (#326 #330)
• Incorrect gas cost on ripemd precompile by @joshuajbouw. (#329)

2.0.2 - 2021-11-01

Added

• Logging number of storage writes by @birchmd. (#322)

Fixed

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

2.0.1 - 2021-11-01

Added

• Added logging of public keys during submit calls by @joshuajbouw. (#319)

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