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CHANGELOG.md

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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[unreleased]

[0.6.7] - 2023-05-05

  • Add IPriceFeedDispatcher.decimals back for backward compatible.

[0.6.6] - 2023-05-05

  • Add PriceFeedDispatcher.getPrice for backward compatible.

[0.6.5] - 2023-03-31

  • Refine natspec

[0.6.4] - 2023-03-30

  • Rename ChainlinkPriceFeedV3.getCachedTwap to ChainlinkPriceFeedV3.getPrice.
  • Rename ChainlinkPriceFeedV3.getCachedPrice to ChainlinkPriceFeedV3.getLatestOrCachedPrice.

[0.6.3] - 2023-03-14

  • Add ChainlinkPriceFeedV3.getCachePrice to fetch the latest valid price and updated timestamp.
  • Add ChainlinkPriceFeedV3.getTimeout to get timeout config of ChainlinkPriceFeedV3.

[0.6.2] - 2023-03-01

  • observations extends to 1800 at CumulativeTwap.sol to support extreme circumstance.
  • To better enhance above performance, we introduce binary search mimicked from https://github.com/Uniswap/v3-core/blob/05c10bf/contracts/libraries/Oracle.sol#L153.
  • Remove CT_NEH from CumulativeTwap.sol. Won't be calculated if so. Simply return latest price at CachedTwap.sol.
  • Fix imprecise TWAP calculation when historical data is not enough at CumulativeTwap.sol. Won't be calculated if so.

[0.6.1] - 2023-03-01

  • Fix cachedTwap won't be updated when latest updated timestamp not changed

[0.6.0] - 2023-03-01

Added

  • Add ChainlinkPriceFeedV3.sol with better error handling when Chainlink is broken.
  • Add PriceFeedDispatcher.sol, a proxy layer to fetch Chainlink or Uniswap's price.
  • Add UniswapV3PriceFeed.sol to fetch a market TWAP with a hard coded time period.
  • Update CachedTwap.sol and CumulativeTwap.sol to better support above fallbackable oracle

[0.5.1] - 2023-02-07

  • Add ChainlinkPriceFeedV1R1

[0.5.0] - 2022-08-23

  • Add PriceFeedUpdater

[0.4.2] - 2022-06-08

  • Add ChainlinkPriceFeed.getRoundData()

[0.4.1] - 2022-05-24

  • Fix npm pack

[0.4.0] - 2022-05-24

  • Add ChainlinkPriceFeedV2, which calculates the TWAP by cached TWAP
  • Add the origin ChainlinkPriceFeed back, which calculates the TWAP by round data instead of cached TWAP

[0.3.4] - 2022-04-01

  • Add cacheTwap(uint256) to IPriceFeed.sol and EmergencyPriceFeed.sol
  • Remove ICachedTwap.sol

[0.3.3] - 2022-03-18

  • Refactor ChainlinkPriceFeed, BandPriceFeed, and EmergencyPriceFeed with efficient TWAP calculation.
  • Change the license to GPL-3.0-or-later.

[0.3.2] - 2022-03-04

  • Using cumulative twap in Chainlink price feed

[0.3.0] - 2022-02-07

  • Add EmergencyPriceFeed

[0.2.2] - 2021-12-28

  • BandPriceFeed will revert if price not updated yet

[0.2.1] - 2021-12-24

  • Fix BandPriceFeed when the price feed haven't updated

[0.2.0] - 2021-12-21

  • Add BandPriceFeed