Release v4.5

CHANGELOG.md

@@ -5,7 +5,7 @@
  * `AccessControl`: add a virtual `_checkRole(bytes32)` function that can be overriden to alter the `onlyRole` modifier behavior. ([#3137](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3137))
  * `EnumerableMap`: add new `AddressToUintMap` map type. ([#3150](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3150))
 
-## Unreleased
+## 4.5.0 (2022-02-09)
 
  * `ERC2981`: add implementation of the royalty standard, and the respective extensions for `ERC721` and `ERC1155`. ([#3012](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3012))
  * `GovernorTimelockControl`: improve the `state()` function to have it reflect cases where a proposal has been canceled directly on the timelock. ([#2977](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/2977))

contracts/access/AccessControl.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (access/AccessControl.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControl.sol)
 
 pragma solidity ^0.8.0;
 

contracts/access/AccessControlEnumerable.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (access/AccessControlEnumerable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (access/AccessControlEnumerable.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/Governor.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/Governor.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/Governor.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/IGovernor.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/IGovernor.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/IGovernor.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/compatibility/GovernorCompatibilityBravo.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/compatibility/GovernorCompatibilityBravo.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/compatibility/GovernorCompatibilityBravo.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/extensions/GovernorPreventLateQuorum.sol

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/extensions/GovernorPreventLateQuorum.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/extensions/GovernorTimelockCompound.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorTimelockCompound.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/extensions/GovernorTimelockCompound.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/extensions/GovernorTimelockControl.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorTimelockControl.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/extensions/GovernorTimelockControl.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/extensions/GovernorVotes.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorVotes.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/extensions/GovernorVotes.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/extensions/GovernorVotesQuorumFraction.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (governance/extensions/GovernorVotesQuorumFraction.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/extensions/GovernorVotesQuorumFraction.sol)
 
 pragma solidity ^0.8.0;
 

contracts/governance/utils/IVotes.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.0 (interfaces/IVotes.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/utils/IVotes.sol)
 pragma solidity ^0.8.0;
 
 /**

contracts/governance/utils/Votes.sol

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (governance/utils/Votes.sol)
 pragma solidity ^0.8.0;
 
 import "../../utils/Context.sol";

contracts/interfaces/IERC2981.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (interfaces/IERC2981.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/IERC2981.sol)
 
 pragma solidity ^0.8.0;
 

contracts/interfaces/draft-IERC1822.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.x.0 (proxy/ERC1822/IProxiable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (interfaces/draft-IERC1822.sol)
 
 pragma solidity ^0.8.0;
 

contracts/metatx/ERC2771Context.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (metatx/ERC2771Context.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (metatx/ERC2771Context.sol)
 
 pragma solidity ^0.8.9;
 

contracts/metatx/MinimalForwarder.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (metatx/MinimalForwarder.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (metatx/MinimalForwarder.sol)
 
 pragma solidity ^0.8.0;
 

contracts/package.json

@@ -1,7 +1,7 @@
 {
   "name": "@openzeppelin/contracts",
   "description": "Secure Smart Contract library for Solidity",
-  "version": "4.4.1",
+  "version": "4.5.0",
   "files": [
     "**/*.sol",
     "/build/contracts/*.json",

contracts/proxy/ERC1967/ERC1967Upgrade.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (proxy/ERC1967/ERC1967Upgrade.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (proxy/ERC1967/ERC1967Upgrade.sol)
 
 pragma solidity ^0.8.2;
 

contracts/proxy/Proxy.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (proxy/Proxy.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (proxy/Proxy.sol)
 
 pragma solidity ^0.8.0;
 

contracts/proxy/utils/Initializable.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (proxy/utils/Initializable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/Initializable.sol)
 
 pragma solidity ^0.8.0;
 

contracts/proxy/utils/UUPSUpgradeable.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (proxy/utils/UUPSUpgradeable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (proxy/utils/UUPSUpgradeable.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC1155/IERC1155Receiver.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC1155/IERC1155Receiver.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC1155/presets/ERC1155PresetMinterPauser.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC1155/presets/ERC1155PresetMinterPauser.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/presets/ERC1155PresetMinterPauser.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC1155/utils/ERC1155Holder.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC1155/utils/ERC1155Holder.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/utils/ERC1155Holder.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/ERC20.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/ERC20.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/ERC20.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/IERC20.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/IERC20.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/IERC20.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/extensions/ERC20Burnable.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Burnable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Burnable.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/extensions/ERC20FlashMint.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20FlashMint.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20FlashMint.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/extensions/ERC20Votes.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20Votes.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20Votes.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/extensions/ERC20VotesComp.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/ERC20VotesComp.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/extensions/ERC20VotesComp.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/presets/ERC20PresetFixedSupply.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/presets/ERC20PresetFixedSupply.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/presets/ERC20PresetFixedSupply.sol)
 pragma solidity ^0.8.0;
 
 import "../extensions/ERC20Burnable.sol";

contracts/token/ERC20/presets/ERC20PresetMinterPauser.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/presets/ERC20PresetMinterPauser.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/presets/ERC20PresetMinterPauser.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC20/utils/TokenTimelock.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/TokenTimelock.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC20/utils/TokenTimelock.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC721/ERC721.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC721/ERC721.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/ERC721.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC721/extensions/ERC721Royalty.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/ERC721Royalty.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/ERC721Royalty.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC721/extensions/IERC721Enumerable.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Enumerable.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/IERC721Enumerable.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC721/extensions/draft-ERC721Votes.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.0 (token/ERC721/extensions/draft-ERC721Votes.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/extensions/draft-ERC721Votes.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC721/presets/ERC721PresetMinterPauserAutoId.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/ERC777/ERC777.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (token/ERC777/ERC777.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC777/ERC777.sol)
 
 pragma solidity ^0.8.0;
 

contracts/token/common/ERC2981.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.0 (token/common/ERC2981.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (token/common/ERC2981.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/Address.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/Address.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/Address.sol)
 
 pragma solidity ^0.8.1;
 

contracts/utils/Base64.sol

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/Base64.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/Checkpoints.sol

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/Checkpoints.sol)
 pragma solidity ^0.8.0;
 
 import "./math/Math.sol";

contracts/utils/Multicall.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/Multicall.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/Multicall.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/cryptography/ECDSA.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/cryptography/ECDSA.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/ECDSA.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/cryptography/MerkleProof.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/cryptography/MerkleProof.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/MerkleProof.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/cryptography/SignatureChecker.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/cryptography/SignatureChecker.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/cryptography/SignatureChecker.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/math/Math.sol

@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts v4.4.1 (utils/math/Math.sol)
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/math/Math.sol)
 
 pragma solidity ^0.8.0;
 

contracts/utils/math/SignedMath.sol

@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v4.5.0) (utils/math/SignedMath.sol)
 
 pragma solidity ^0.8.0;
 

package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "openzeppelin-solidity",
-  "version": "4.4.1",
+  "version": "4.5.0",
   "lockfileVersion": 2,
   "requires": true,
   "packages": {
     "": {
       "name": "openzeppelin-solidity",
-      "version": "4.4.1",
+      "version": "4.5.0",
       "license": "MIT",
       "bin": {
         "openzeppelin-contracts-migrate-imports": "scripts/migrate-imports.js"

package.json

@@ -1,7 +1,7 @@
 {
   "name": "openzeppelin-solidity",
   "description": "Secure Smart Contract library for Solidity",
-  "version": "4.4.1",
+  "version": "4.5.0",
   "files": [
     "/contracts/**/*.sol",
     "/build/contracts/*.json",