Latest Upgrade ( 2024/07/17 )

There will be additional charge imposed by some DEX aggregators which provide swapping service. Therefore, the YBridgeV3 contract is upgraded to reflect such expense.

New functions

• adaptorForAdditionalFeeBlacklist(address): bool: Lookup DEX aggregator adaptors, which provide swapping service, that’s NOT allowed to be used by old version of function swapWithReferrer(...)

• additionalFeeReceiver(): For managing purpose

• additionalFeeConfig(address): uint256: Lookup the amount of native token it takes to utilize the DEX aggregator adaptor. If it returns 0, a default value of additionalFeeConfig(address(0)) will be charged

Cross chain swap

• The old interface, swapWithReferrer(address,(address,address,address,uint256,uint256),bytes,(uint32,address,uint256,uint32),address): 2aac3cac, is kept.

  1. Fees : It doesn’t apply additional fees as before but cannot go through blacklisted DEX aggregator adaptors (adaptorForAdditionalFeeBlacklist(address): bool).

  2. Event : Changed to SwapRequested(uint256,address,(uint32,address,address,uint256,uint32),address,address,uint256,address,uint256,uint256,address): 0xb0e9a29a6096a927bd389ba0d0d1a15f82df21a331d23a33eeb7de1cf7ab2684 from SwapRequested(uint256,address,(uint32,address,uint256,uint32),address,address,uint256,address,uint256,uint256,address):0x40218dc7047d6a284746d042d62140b3629db83daefcd944659e90b4c74b7eb0

• The new overloading interface, swapWithReferrer(address,(address,address,address,uint256,uint256),bytes,(uint32,address,address,uint256,uint32),address): cdc65927, is added.

  1. Fees: It charges native token according to additionalFeeConfig for both source chain and destination chain swapping DEX aggregator adaptor used.

  2. Mechanism: Same as the old swapWithReferrer, but charges DEX aggregator adaptor fees according to additionalFeeConfig. With enough msg.value sent along with the transaction, extra native token would be refunded back to the caller.

  3. Event: The same event, SwapRequested(uint256,address,(uint32,address,address,uint256,uint32),address,address,uint256,address,uint256,uint256,address): 0xb0e9a29a6096a927bd389ba0d0d1a15f82df21a331d23a33eeb7de1cf7ab2684emitted as the other swapWithReferrer