@bancor/contracts-solidity - npm Package Versions

0.6.33

General

• Replaced the local ERC20Token/TokenHandler with OpenZepplin's ERC20/SafeERC20
• Moved from npm to yarn
• Added FixedRatePoolConverter (type 4)

StandardPoolConverter

• Added sourceAmountAndFee function that returns the source amount and fee based on a target amount

LiquidityProtection

• Pool spot rate is now recorded on deposit instead of the average rate

0.6.32

LiquidityProtection

• Updated settings contract conventions

0.6.31

LiquidityProtection

• Added support for disabling adding liquidity with a specific reserve
• Added support for multipler event subscribers

0.6.30

LiquidityProtection

• Added LiquidityProtectionSystemStore contract that holds the system balance/minted amounts
• Added a dedicated wallet contract for liquidity protection

0.6.29

General

• Replaced the local SafeMath contract with OpenZepplin's version
• Renamed Math contract to MathEx contract to prevent conflicts

LiquidityProtection

• Added LiquidityProtectionStats contract that holds totals & provider specific stats
• Added an event subscriber contract that receives liquidity add/remove events

0.6.28

LiquidityProtection

• Removed support for protecting/unprotecting existing pool tokens
• Added a function that returns the current available space in the pool (poolAvailableSpace)

ConverterUpgrader

• Added support for upgrading a converter with reserve tokens that revert on transfer(0)

0.6.27

General

• Added a gas optimized standard pool converter (type 3) for 2 reserves, 50%/50% weights
• Added Checkpoint store contract for tracking any actions that happen at a specific point in time
• Optimized some of the generic Math functions
• Removed legacy code
• Added prettier to the code

ConverterRegistry

• Creating a standard type 1 pool will result in a type 3 pool

ConverterUpgrader

• Upgrading a standard type 1 pool will result in a new type 3 pool

LiquidityProtection

• New flexible and more secure network token minting limit system
• Liquidity cannot be added and removed in the same block anymore
• Settings moved into a dedicated contract
• Removed the high tier pool system
• Optimized calculations to reduce potential overflows/underflows
• Added addLiquidityFor function that allows creating a position for a different wallet
• Removed the transferLiquidity function
• Added on-chain tracking for when users remove liquidity
• Fixed an issue that triggererd an exception in the poolROI view function in certain cases

0.6.26

LiquidityProtection

• Added support for high tier pools
• Fixed an issue in the system ratio limit

0.6.25

LiquidityProtection

• Updated to use the TokenGovernance contract for both the network token & the governance token
• Minor gas optimization

0.6.24

General

• Added prettier

LiquidityProtection

• Fixed a potential overflow exception in removeLiquidityTargetAmount
• Binary size optimization