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CHANGELOG.md

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Changelog

4.0.0

New features

  • NftStakingV2.sol:
    • added batchUnstakeNfts() function
    • internal hook functions _onStake and_onUnstake.
    • added withdrawLostCycleRewards for an admin to withdraw the rewards for a past cycle where there was no stake.
    • new events NftsBatchStaked and NftsBatchUnstaked emitted during batch operations instead of the single versions.
    • Batch functions throw on an empty tokens list.
    • Optimised implementation of batch staking.
    • GSN compatibility.

Improvements

3.0.4

Improvements

  • Optimised the assignment of tokenInfos in _stakeNFT.

3.0.3

Improvements

  • Calibrated the re-stake exploit fix to only apply during the same cycle after unstaking.
  • Improved the comments.

3.0.2

Bugfixes

  • Fixed an exploit that allowed the re-staking of a token during the same cycle.

3.0.1

Improvements

  • Gas optimisations, minor comments improvements.
  • Linting configuration.
  • Migrated to yarn.

3.0.0

New features

  • Added addRewardsForPeriods() function, which initializes or adds reward amounts for the specified period range. This will perform a transfer operation to fund the contract with the added rewards amount when called.
  • Added contract interface IWhitelistedNftContract to define the API for the whitelisted contract used for NFT transfer operations when unstaking.

Breaking changes

  • Removed setRewardsForPeriods() function.
  • Funding the contract rewards no longer occurs when calling the start() function. Instead, this happens whenever addRewardsForPeriods() is called.
  • Removed disabled state variable, for representing the contract enabled state, and replaced with enabled.
  • Renamed RewardsScheduled event to RewardsAdded.
  • Renamed totalPrizePool state variable to totalRewardsPool.

2.0.1

New features

  • The module now exports a constants and a utils object.
  • Added a function to calculate a total rewards based on a rewards schedule.

Bugfixes

  • Fixed a wrong import in the migration and restructured the script

2.0.0

Breaking changes

  • Updated @animoca/ethereum-contracts-core_library to version 3 and downgraded it to be a dev dependency.
  • Updated @animoca/ethereum-contracts-erc20_base to version 3 and downgraded it to be a dev dependency.
  • Updated @animoca/ethereum-contracts-assets_inventory to version 3 and downgraded it to be a dev dependency.
  • Migrated compiler to solc:0.6.8.
  • Design change to record staker histories with modification to public interfaces.
  • Removed testable version of the contract.

Improvements

  • Removed dependency on @animoca/f1dt-core_metadata.

1.0.2

Improvements

  • Updated dependency on @animoca/ethereum-contracts-assets_inventory to 2.0.1.
  • Change variables names in multiple files to be more generic.

1.0.1

Improvements

  • Added 1_NftStaking.js migration script.

1.0.0

Breaking changes

  • Migration to @animoca/ethereum-contracts-core_library:1.0.0 with solc:0.6.x and @openzeppelin/contracts:3.x.

New features

  • Added NftStakingMock.sol and NftStakingTestableMock.sol.

Improvements

  • Better abstraction of core staking features.

0.0.1

  • Initial commit.