0.6.3

BancorNetwork

• Fixed an issue in the backward compatibility layer for older converters

ConverterUpgrader

• Fixed an issue in the backward compatibility layer for older converters

0.6.2

BancorNetwork

• Added backward compatibility to rateByPath

0.6.1

ConverterRegistry

• Fixed a bug that prevented removal of older converters from the registry

0.6.0

General

• Major upgrade, many improvements and design changes (new backward compatibility layer still supports most of older interfaces)
• Major gas optimization on conversions
• New design to allow different converter types
• Removed EtherToken functionality in favor of using ETH directly (the contract is still used for backward compatibility)
• Added revert error messages
• Improved support for non standard token transfer/transferFrom functions
• Many other minor changes, bug fixes and cleanups

BancorNetwork

• Added a new conversionPath function
• getReturnByPath is now replaced by rateByPath
• all conversion functions are now replaced by convertByPath

BancorConverter

• Converters are now broken into different contracts with ConverterBase as the base contract
• New entity introduced - Converter Anchor. The anchor rerpresents the converter id and is the non upgradable component of the converter
• New converterType function to allow identifying the converter
• There are now two major converter types - Liquid Token Converter & Liquidity Pool Converter
• Add/Remove liquidity functions moved to the new liquidity pool converter
• New add/remove liquidity functions - addLiquidity now accepts the reserve amounts instead of the pool token amount
• It's now possible to add liquidity to empty liquidity pools
• It's no longer possible to convert into pool tokens (these can only be acquired by adding liquidity)
• Conversions cannot be executed directly against converters anymore - all conversions should be executed through the BancorNetwork contract
• New TokenRateUpdate event that gets emitted for rate changes between any two tokens (reserve/reserve, pool/reserve etc.)
• PriceDataEvent is now deprecated in favor of the new TokenRateUpdate event

ConverterRegistry

• Added newConverter factory function to simplify converter creation process
• Converters cannot be added to the registry directly anymore, instead use the new factory function
• Converters are now accessible by their anchors instead of by their smart tokens
• Smart token functions/events are now replaced with anchor functions/events

BancorX

• Removed support for smart tokens for security reasons. Allowance should be used instead