# v9.1.1 Update

## Summary

* Apply fee tiers to oracle rewards

## Full Changelog

### core/facets/GNSPriceAggregator.sol (update)

* `getPrice` and `getLinkFee` now accept `_trader` argument

### interfaces/libraries/IPriceAggregatorUtils.sol (update)

* Adjusted `getPrice` and `getLinkFee` functions definitions
* Updated `PriceRequested` event: now emits trader address, and `collateralIndex`/`trader`/`pairIndex` are now the indexed properties (`orderType` and `job` no longer indexed)

### libraries/updateLeverage/UpdateLeverageLifecycles.sol (update)

* `_initiateRequest`: small adjustment to avoid stack too deep, now passes `_trade.user` to `getPrice`

### libraries/updatePositionSize/UpdatePositionSizeLifecycles.sol (update)

* `_initiateRequest`: passes `_trade.user` to `getPrice`

### libraries/PriceAggregatorUtils.sol (update)

* Library is now external
* `getPrice` now accepts `_trader` argument, refreshes fee tier for `_trader` right before calculating link fee, passes `_trader` to `getLinkFee` to apply his fee tier to the oracle link fees, and `PriceRequested` now emits `_trader`
* `getLinkFee` now accepts `_trader` and applies his fee tier to the link fee result

### libraries/TradingInteractionsUtils.sol (update)

* `closeTradeMarket`: passes `t.user` to `getPrice`
* `triggerOrder`: refreshes `t.user`'s fee tier before receiving the link fee from the caller, passes `t.user` to `getLinkFee`
* `_openTrade`: passes `_trade.user` to `getPrice`
* `_getPriceTriggerOrder`: passes `_trade.user` to `getPrice`


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