v0.6.0

0.6.0 (2024-02-15)

⚠ BREAKING CHANGES

• transfer remaining collateral to vault upon liquidation (#89)
• events: Position has no startPrice anymore, InitiatedOpenPosition and ValidatedOpenPosition have different fields
• middleware: some unused errors don't exist anymore

Features

• transfer remaining collateral to vault upon liquidation (#89) (92f43e7)
• update position tick if leverage exceeds max leverage (#76) (aad0e50)

Bug Fixes

• liquidation: use neutral price and liquidate whenever possible (#94) (92f13b5)
• middleware: remove unused errors (#83) (6a95a11)
• only pass required ether to middleware and refund excess (#87) (7c777e4)

Code Refactoring

• events: remove unused or unneeded fields from events and structs (#88) (672e4f7)

Details

• Update position tick if leverage exceeds max leverage. If leverage above 10, then update tick to the lower tick with leverage under 10.
• Fix: ether refund from oracle middleware, was unable to validate two times in the same tx/
• Update balance between vault and long when a position is liquidated. If there is a gain, the vault will receive the gain, if there is a loss, the vault will pay the loss.
• Use neutral pyth price for liquidation.

Deployment

• PYTH_WSTETH_PRICE_ID removed

Data structure

• Remove uint128 startPrice from Position

Events

Update

• event InitiatedOpenPosition( address indexed user, Position position, int24 tick, uint256 tickVersion, uint256 index)
  -> event InitiatedOpenPosition( address indexed user, uint40 timestamp, uint128 leverage, uint128 amount, uint128 startPrice, int24 tick, uint256 tickVersion, uint256 index );
• event ValidatedOpenPosition( address indexed user, Position position, int24 tick, uint256 tickVersion, uint256 index, uint128 liquidationPrice ); -> event ValidatedOpenPosition( address indexed user, uint128 newLeverage, uint128 newStartPrice, int24 tick, uint256 tickVersion, uint256 index );
• event LiquidatedTick( int24 indexed tick, uint256 indexed oldTickVersion, uint256 liquidationPrice, uint256 effectiveTickPrice );->event LiquidatedTick( int24 indexed tick, uint256 indexed oldTickVersion, uint256 liquidationPrice, uint256 effectiveTickPrice, int256 remainingCollateral )

Errors

New

• OracleMiddlewareInsufficientFee()
• OracleMiddlewareEtherRefundFailed()
• UsdnProtocolInsufficientOracleFee()
• UsdnProtocolEtherRefundFailed()

Removed

• OracleMiddlewarePriceRequestTooEarly()
• OracleMiddlewareOracleMiddlewareWrongPriceTimestamp(uint64 min, uint64 max, uint64 result)
• OracleMiddlewareUnsupportedAction(ProtocolAction action)
• OracleMiddlewarePythValidationFailed()