HI [hi Dollar] Token

Different versions of Solidity are used:
- Version used: ['^0.8.0', '^0.8.2']
- ^0.8.0 (#7)
- ^0.8.0 (#33)
- ^0.8.0 (#125)
- ^0.8.0 (#209)
- ^0.8.0 (#238)
- ^0.8.0 (#595)
- ^0.8.2 (#638)
- ABIEncoderV2 (#643)
Use one Solidity version.

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Context._msgData() (#24-26) is never used and should be removed
Remove unused functions.

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Pragma version^0.8.0 (#7) allows old versions
Pragma version^0.8.0 (#125) allows old versions
Pragma version^0.8.0 (#209) allows old versions
Pragma version^0.8.0 (#595) allows old versions
Pragma version^0.8.2 (#638) allows old versions
Pragma version^0.8.0 (#238) allows old versions
Pragma version^0.8.0 (#33) allows old versions
solc-0.8.9 is not recommended for deployment
Deploy with any of the following Solidity versions: 0.5.16 - 0.5.17, 0.6.11 - 0.6.12, 0.7.5 - 0.7.6 Use a simple pragma version that allows any of these versions. Consider using the latest version of Solidity for testing.

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Contract hiDollar (#1049-1197) is not in CapWords
Variable Governable.Proposers (#733) is not in mixedCase
Variable Governable.Approvers (#730) is not in mixedCase
Follow the Solidity naming convention.

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Variable Governable._isProposalApproved(uint256).approvedCount (#776) is too similar to Governable.approverCount (#731)
Prevent variables from having similar names.

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takeOwnership() should be declared external:
- Ownable.takeOwnership() (#700-703)
setUserFeeRatio(address,uint256,bool) should be declared external:
- hiDollar.setUserFeeRatio(address,uint256,bool) (#1104-1116)
transferFrom(address,address,uint256) should be declared external:
- ERC20.transferFrom(address,address,uint256) (#383-397)
unpause() should be declared external:
- hiDollar.unpause() (#1126-1128)
burnFrom(address,uint256) should be declared external:
- ERC20Burnable.burnFrom(address,uint256) (#625-632)
setDefaultFeeRatio(uint256) should be declared external:
- hiDollar.setDefaultFeeRatio(uint256) (#1097-1102)
proposeOwner(address) should be declared external:
- Ownable.proposeOwner(address) (#691-695)
proposeAdmin(address) should be declared external:
- Administrable.proposeAdmin(address) (#846-858)
decimals() should be declared external:
- ERC20.decimals() (#320-322)
pause() should be declared external:
- hiDollar.pause() (#1122-1124)
decreaseAllowance(address,uint256) should be declared external:
- ERC20.decreaseAllowance(address,uint256) (#430-438)
symbol() should be declared external:
- ERC20.symbol() (#303-305)
transfer(address,uint256) should be declared external:
- ERC20.transfer(address,uint256) (#346-349)
emitMint(address) should be declared external:
- Mintable.emitMint(address) (#1018-1030)
increaseAllowance(address,uint256) should be declared external:
- ERC20.increaseAllowance(address,uint256) (#411-414)
approveMint(address,uint256,bool) should be declared external:
- Mintable.approveMint(address,uint256,bool) (#999-1016)
name() should be declared external:
- ERC20.name() (#295-297)
getProposalAdmin(bool) should be declared external:
- Administrable.getProposalAdmin(bool) (#826-840)
takeAdmin() should be declared external:
- Administrable.takeAdmin() (#879-894)
setProposer(address,bool) should be declared external:
- Governable.setProposer(address,bool) (#764-774)
proposeMint(uint256) should be declared external:
- Mintable.proposeMint(uint256) (#985-997)
approveAdmin(address,address,bool) should be declared external:
- Administrable.approveAdmin(address,address,bool) (#860-877)
totalSupply() should be declared external:
- ERC20.totalSupply() (#327-329)
approve(address,uint256) should be declared external:
- ERC20.approve(address,uint256) (#365-368)
setHolder(address) should be declared external:
- Mintable.setHolder(address) (#975-978)
getProposalMint(address) should be declared external:
- Mintable.getProposalMint(address) (#959-973)
setApprover(address,bool) should be declared external:
- Governable.setApprover(address,bool) (#751-762)
burn(uint256) should be declared external:
- ERC20Burnable.burn(uint256) (#610-612)
collectFee(uint256) should be declared external:
- hiDollar.collectFee(uint256) (#1187-1194)
setFeeCollector(address) should be declared external:
- hiDollar.setFeeCollector(address) (#1090-1095)
Use the external attribute for functions never called from the contract.

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Token is not listed at Mobula.Finance

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Unable to find audit link on the website