v4.0.0: Version 4.0.0 (#13)

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

• Dependencies updated to @animoca/[email protected] and @animoca/[email protected].