ReentrancyGuard: Add a _reentrancyGuardEntered function to expose the guard status. (#3714)
ERC721Wrapper: add a new extension of the ERC721 token which wraps an underlying token. Deposit and withdraw guarantee that the ownership of each token is backed by a corresponding underlying token with the same identifier. (#3863)
EnumerableMap: add a keys() function that returns an array containing all the keys. (#3920)
Governor: add a public cancel(uint256) function. (#3983)
Governor: Enable timestamp operation for blockchains without a stable block time. This is achieved by connecting a Governor's internal clock to match a voting token's EIP-6372 interface. (#3934)
IERC5313: Add an interface for EIP-5313 that is now final. (#4013)
IERC4906: Add an interface for ERC-4906 that is now Final. (#4012)
StorageSlot: Add support for string and bytes. (#4008)
Votes, ERC20Votes, ERC721Votes: support timestamp checkpointing using EIP-6372. (#3934)
ERC4626: Add mitigation to the inflation attack through virtual shares and assets. (#3979)
Strings: add toString method for signed integers. (#3773)
ERC20Wrapper: Make the underlying variable private and add a public accessor. (#4029)
EIP712: add EIP-5267 support for better domain discovery. (#3969)
AccessControlDefaultAdminRules: Add an extension of AccessControl with additional security rules for the DEFAULT_ADMIN_ROLE. (#4009)
SignatureChecker: Add isValidERC1271SignatureNow for checking a signature directly against a smart contract using ERC-1271. (#3932)
SafeERC20: Add a forceApprove function to improve compatibility with tokens behaving like USDT. (#4067)
ERC1967Upgrade: removed contract-wide oz-upgrades-unsafe-allow delegatecall annotation, replaced by granular annotation in UUPSUpgradeable. (#3971)
ERC20Wrapper: self wrapping and deposit by the wrapper itself are now explicitly forbidden. (#4100)
ECDSA: optimize bytes32 computation by using assembly instead of abi.encodePacked. (#3853)
ERC721URIStorage: Emit ERC-4906 MetadataUpdate in _setTokenURI. (#4012)
ShortStrings: Added a library for handling short strings in a gas efficient way, with fallback to storage for longer strings. (#4023)
SignatureChecker: Allow return data length greater than 32 from EIP-1271 signers. (#4038)
UUPSUpgradeable: added granular oz-upgrades-unsafe-allow-reachable annotation to improve upgrade safety checks on latest version of the Upgrades Plugins (starting with @openzeppelin/upgrades-core@1.21.0). (#3971)
Initializable: optimize _disableInitializers by using != instead of <. (#3787)
Ownable2Step: make acceptOwnership public virtual to enable usecases that require overriding it. (#3960)
UUPSUpgradeable.sol: Change visibility to the functions upgradeTo and upgradeToAndCall from external to public. (#3959)
TimelockController: Add the CallSalt event to emit on operation schedule. (#4001)
Reformatted codebase with latest version of Prettier Solidity. (#3898)
ECDSA: Add a function toDataWithIntendedValidatorHash that encodes data with version 0x00 following EIP-191. (#4063)
MerkleProof: optimize by using unchecked arithmetic. (#3745)
Breaking changes
EIP712: Addition of ERC5267 support requires support for user defined value types, which was released in Solidity version 0.8.8. This requires a pragma change from ^0.8.0 to ^0.8.8.
EIP712: Optimization of the cache for the upgradeable version affects the way name and version are set. This is no longer done through an initializer, and is instead part of the implementation's constructor. As a consequence, all proxies using the same implementation will necessarily share the same name and version. Additionally, an implementation upgrade risks changing the EIP712 domain unless the same name and version are used when deploying the new implementation contract.
Deprecations
ERC20Permit: Added the file IERC20Permit.sol and ERC20Permit.sol and deprecated draft-IERC20Permit.sol and draft-ERC20Permit.sol since EIP-2612 is no longer a Draft. Developers are encouraged to update their imports. (#3793)
Timers: The Timers library is now deprecated and will be removed in the next major release. (#4062)
ERC777: The ERC777 token standard is no longer supported by OpenZeppelin. Our implementation is now deprecated and will be removed in the next major release. The corresponding standard interfaces remain available. (#4066)
ERC1820Implementer: The ERC1820 pseudo-introspection mechanism is no longer supported by OpenZeppelin. Our implementation is now deprecated and will be removed in the next major release. The corresponding standard interfaces remain available. (#4066)
ReentrancyGuard: Add a _reentrancyGuardEntered function to expose the guard status. (#3714)
ERC721Wrapper: add a new extension of the ERC721 token which wraps an underlying token. Deposit and withdraw guarantee that the ownership of each token is backed by a corresponding underlying token with the same identifier. (#3863)
EnumerableMap: add a keys() function that returns an array containing all the keys. (#3920)
Governor: add a public cancel(uint256) function. (#3983)
Governor: Enable timestamp operation for blockchains without a stable block time. This is achieved by connecting a Governor's internal clock to match a voting token's EIP-6372 interface. (#3934)
IERC5313: Add an interface for EIP-5313 that is now final. (#4013)
IERC4906: Add an interface for ERC-4906 that is now Final. (#4012)
StorageSlot: Add support for string and bytes. (#4008)
Votes, ERC20Votes, ERC721Votes: support timestamp checkpointing using EIP-6372. (#3934)
ERC4626: Add mitigation to the inflation attack through virtual shares and assets. (#3979)
Strings: add toString method for signed integers. (#3773)
ERC20Wrapper: Make the underlying variable private and add a public accessor. (#4029)
EIP712: add EIP-5267 support for better domain discovery. (#3969)
AccessControlDefaultAdminRules: Add an extension of AccessControl with additional security rules for the DEFAULT_ADMIN_ROLE. (#4009)
SignatureChecker: Add isValidERC1271SignatureNow for checking a signature directly against a smart contract using ERC-1271. (#3932)
SafeERC20: Add a forceApprove function to improve compatibility with tokens behaving like USDT. (#4067)
ERC1967Upgrade: removed contract-wide oz-upgrades-unsafe-allow delegatecall annotation, replaced by granular annotation in UUPSUpgradeable. (#3971)
ERC20Wrapper: self wrapping and deposit by the wrapper itself are now explicitly forbidden. (#4100)
ECDSA: optimize bytes32 computation by using assembly instead of abi.encodePacked. (#3853)
ERC721URIStorage: Emit ERC-4906 MetadataUpdate in _setTokenURI. (#4012)
ShortStrings: Added a library for handling short strings in a gas efficient way, with fallback to storage for longer strings. (#4023)
SignatureChecker: Allow return data length greater than 32 from EIP-1271 signers. (#4038)
UUPSUpgradeable: added granular oz-upgrades-unsafe-allow-reachable annotation to improve upgrade safety checks on latest version of the Upgrades Plugins (starting with @openzeppelin/upgrades-core@1.21.0). (#3971)
Initializable: optimize _disableInitializers by using != instead of <. (#3787)
Ownable2Step: make acceptOwnership public virtual to enable usecases that require overriding it. (#3960)
UUPSUpgradeable.sol: Change visibility to the functions upgradeTo and upgradeToAndCall from external to public. (#3959)
TimelockController: Add the CallSalt event to emit on operation schedule. (#4001)
Reformatted codebase with latest version of Prettier Solidity. (#3898)
ECDSA: Add a function toDataWithIntendedValidatorHash that encodes data with version 0x00 following EIP-191. (#4063)
MerkleProof: optimize by using unchecked arithmetic. (#3745)
Breaking changes
EIP712: Addition of ERC5267 support requires support for user defined value types, which was released in Solidity version 0.8.8. This requires a pragma change from ^0.8.0 to ^0.8.8.
EIP712: Optimization of the cache for the upgradeable version affects the way name and version are set. This is no longer done through an initializer, and is instead part of the implementation's constructor. As a consequence, all proxies using the same implementation will necessarily share the same name and version. Additionally, an implementation upgrade risks changing the EIP712 domain unless the same name and version are used when deploying the new implementation contract.
Deprecations
ERC20Permit: Added the file IERC20Permit.sol and ERC20Permit.sol and deprecated draft-IERC20Permit.sol and draft-ERC20Permit.sol since EIP-2612 is no longer a Draft. Developers are encouraged to update their imports. (#3793)
Timers: The Timers library is now deprecated and will be removed in the next major release. (#4062)
ERC777: The ERC777 token standard is no longer supported by OpenZeppelin. Our implementation is now deprecated and will be removed in the next major release. The corresponding standard interfaces remain available. (#4066)
ERC1820Implementer: The ERC1820 pseudo-introspection mechanism is no longer supported by OpenZeppelin. Our implementation is now deprecated and will be removed in the next major release. The corresponding standard interfaces remain available. (#4066)
... (truncated)
Commits
dfef6a6 Fix error when running hardhat test with parameters (#4265)
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dependabot[bot]
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Bumps @openzeppelin/contracts from 4.8.2 to 4.9.0.
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Commits
dfef6a6Fix error when running hardhat test with parameters (#4265)96b9559Fix grammar in docs (#4250)1642b66Reduce frequency of version comment updates (#4244)3ec4307Fix bug allowing anyone to cancel an admin renounce (#4238)f355bd3Prevent attempt to publish to npm (#4239)3e1b25aClean up pending admin schedule on renounce in DefaultAdminRules (#4230)f7b236dConfigure Codespell to check hidden files (#4236)e5dbc74Add final PDF report for v4.9 audit (#4235)9a2e4cbUpdate codespell-project/actions-codespell action to v2 (#4229)d095542Disable code size warnings on exposed contractsDependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
@dependabot rebase.Dependabot commands and options
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