Release v5.6.0 (rc) (#6223)

github-actions[bot] · ernestognw · web-flow · commit f910b26cfeee · 2025-12-19T15:40:47.000+01:00
Co-authored-by: github-actions[bot] &lt;41898282+github-actions[bot]@users.noreply.github.com&gt;
Co-authored-by: ernestognw &lt;ernestognw@gmail.com&gt;
diff --git a/.changeset/pre.json b/.changeset/pre.json
@@ -4,5 +4,29 @@
   "initialVersions": {
     "openzeppelin-solidity": "5.5.0"
   },
-  "changesets": []
+  "changesets": [
+    "blue-mirrors-agree",
+    "bright-webs-create",
+    "clean-worlds-end",
+    "flat-ideas-count",
+    "fluffy-facts-brake",
+    "forty-ads-design",
+    "full-emus-hear",
+    "fuzzy-lizards-do",
+    "grumpy-cats-brake",
+    "khaki-crews-join",
+    "new-socks-deny",
+    "shaky-phones-mix",
+    "social-tools-sniff",
+    "spotty-plums-brush",
+    "stale-lizards-cheat",
+    "swift-planets-juggle",
+    "tame-monkeys-make",
+    "tender-pans-yawn",
+    "thick-banks-relate",
+    "vast-worlds-pull",
+    "whole-turkeys-swim",
+    "yellow-clowns-mate",
+    "young-corners-help"
+  ]
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,12 +1,57 @@
 # Changelog
 
+## 5.6.0-rc.0 (2025-12-19)
+
 ### Breaking changes
 
 - `ERC1155`: Performing batch transfers with exactly one id/value in the batch no-longer calls `IERC1155Receiver.onERC1155Received`. `IERC1155Receiver.onERC1155BatchReceived` is called instead (with arrays of length one). ([#6170](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6170))
 - `ERC1967Proxy` and `TransparentUpgradeableProxy`: Mandate initialization during construction. Deployment now reverts with `ERC1967ProxyUninitialized` if an initialize call is not provided. Developers that rely on the previous behavior and want to disable this check can do so by overriding the internal `_unsafeAllowUninitialized` function to return true. ([#5906](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5906))
 - `ERC721` and `ERC1155`: Prevent setting an operator for `address(0)`. In the case of `ERC721` this type of operator allowance could lead to obfuscated mint permission. ([#6171](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6171))
 - `RLP`: The `encode(bytes32)` function now encodes `bytes32` as a fixed size item and not as a scalar in `encode(uint256)`. Users must replace calls to `encode(bytes32)` with `encode(uint256(bytes32))` to preserve the same behavior. ([#6167](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6167))
-- `ERC4337Utils`: The `parseValidationData` now returns a `ValidationRange` as the last return tuple value indicating whether the `validationData` is compared against a timestamp or block number. Developers must update their code to handle this new return value (e.g. `(aggregator, validAfter, validUntil) -> (aggregator, validAfter, validUntil, range)`).
+- `ERC4337Utils`: The `parseValidationData` now returns a `ValidationRange` as the last return tuple value indicating whether the `validationData` is compared against a timestamp or block number. Developers must update their code to handle this new return value (e.g. `(aggregator, validAfter, validUntil) -> (aggregator, validAfter, validUntil, range)`). ([#6215](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6215))
+
+### Changes by category
+
+#### Account
+
+- `Account`: Update default version of the ERC-4337 entrypoint to v0.9. ([#6135](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6135))
+- `AccountERC7579`: Do not revert and perform the uninstall if the `onUninstall` hook of a module reverts. ([#6142](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6142))
+- `ERC4337Utils`: Added the `paymasterSignature` function to extract the signature in `paymasterAndData` after Entrypoint v0.9. Similarly, a variant of `paymasterData` that receives a flag to exclude the signature from the returned data. ([#6215](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6215))
+- `ERC4337Utils`: Added variants of `packValidationData(address,uint48,uint48)` and `packValidationData(bool,uint48,uint48)` that receive a `ValidationRange` argument, could be timestamp or block number. Similarly, the `parseValidationData` now returns a `ValidationRange` too. ([#6215](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6215))
+
+#### Tokens
+
+- `ERC1155`: Introduce the `_checkAuthorized` internal virtual function to encapsulate `isApprovedForAll` and `msg.sender == from` checks. ([#6133](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6133))
+- `ERC1155`: Call `IERC1155Receiver.onERC1155BatchReceived` when performing a batch transfers with exactly one id/value in the batch. ([#6170](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6170))
+- `ERC4626`: Allow overriding underlying assets transfer mechanisms through new internal virtual functions (`_transferIn` and `_transferOut`). ([#5970](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5970))
+- `ERC721URIStorage`: Add `_suffixURI`, an internal getter for retrieving the custom tokenURI without the base prefix. ([#6175](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6175))
+
+#### Cross-chain
+
+- `BridgeERC20Core`, `BridgeERC20` and `BridgeERC7802`: Added bridge contracts to handle crosschain movements of ERC-20 (and ERC-7802) tokens. ([#5914](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5914))
+- `CrosschainLinked`: Added a new helper contract to facilitate communication between a contract on one chain and counterparts on remote chains through ERC-7786 gateways. ([#5914](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5914))
+- `ERC20Crosschain`: Added an ERC-20 extension to embed an ERC-7786 based crosschain bridge directly in the token contract. ([#5914](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5914))
+
+#### Cryptography
+
+- `MessageHashUtils`: Add helper functions to build EIP-712 domain typehash and separator with fields selectively enabled/disabled. ([#5908](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5908))
+- `SignatureChecker`: Add `isValidERC1271SignatureNowCalldata`, a variant of `isValidERC1271SignatureNow` that takes the signature from calldata. ([#6123](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6123))
+- `TrieProof`: Add library for verifying Ethereum Merkle-Patricia trie inclusion proofs. ([#5826](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5826))
+
+#### Structures
+
+- `DoubleEndedQueue`: Add `tryPushBack`, `tryPopBack`, `tryPushFront`, `tryPopFront`, `tryFront`, `tryBack`, and `tryAt` function variants that do not revert. ([#6020](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6020))
+- `EnumerableMap`: Add support for `Bytes4ToAddressMap` types. ([#6091](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6091))
+- `EnumerableSet`: Add support for `Bytes4Set` type. ([#6091](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6091))
+
+#### Utils
+
+- `Arrays`: Add `replace` functions enabling in-place array modification of `address[]`, `bytes32[]` and `uint256[]` arrays, with new content from another array. ([#5995](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5995))
+- `Arrays`: Add `slice` and `splice` functions for value types (`uint256[]`, `bytes32[]`, `address[]`). ([#5965](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5965))
+- `Bytes`: Add `replace` functions that replaces a portion of a bytes buffer with content from another buffer. ([#5995](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5995))
+- `Bytes`: Add the `toNibbles` function that expands the nibbles (4 bits chunk) of a `bytes` buffer. Used for manipulating Patricia Merkle Trees keys and paths. ([#5826](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/5826))
+- `RLP`: Encode `bytes32` as a fixed size item and not as a scalar in `encode(bytes32)`. Scalar RLP encoding remains available by casting to a `uint256` and using the `encode(uint256)` function. ([#6167](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6167))
+- `RLP`: Fix RLP encoding validity check when decoding long lists or strings ([#6051](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/6051))
 
 ## 5.5.0 (2025-10-31)
 
diff --git a/contracts/access/AccessControl.sol b/contracts/access/AccessControl.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.4.0) (access/AccessControl.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (access/AccessControl.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/access/extensions/AccessControlDefaultAdminRules.sol b/contracts/access/extensions/AccessControlDefaultAdminRules.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (access/extensions/AccessControlDefaultAdminRules.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (access/extensions/AccessControlDefaultAdminRules.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/access/extensions/IAccessControlDefaultAdminRules.sol b/contracts/access/extensions/IAccessControlDefaultAdminRules.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (access/extensions/IAccessControlDefaultAdminRules.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (access/extensions/IAccessControlDefaultAdminRules.sol)
 
 pragma solidity >=0.8.4;
 
diff --git a/contracts/access/manager/IAccessManager.sol b/contracts/access/manager/IAccessManager.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (access/manager/IAccessManager.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (access/manager/IAccessManager.sol)
 
 pragma solidity >=0.8.4;
 
diff --git a/contracts/account/Account.sol b/contracts/account/Account.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (account/Account.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (account/Account.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/account/extensions/draft-AccountERC7579.sol b/contracts/account/extensions/draft-AccountERC7579.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (account/extensions/draft-AccountERC7579.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (account/extensions/draft-AccountERC7579.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/account/extensions/draft-AccountERC7579Hooked.sol b/contracts/account/extensions/draft-AccountERC7579Hooked.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.4.0) (account/extensions/draft-AccountERC7579Hooked.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (account/extensions/draft-AccountERC7579Hooked.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/account/utils/EIP7702Utils.sol b/contracts/account/utils/EIP7702Utils.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (account/utils/EIP7702Utils.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (account/utils/EIP7702Utils.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/account/utils/draft-ERC4337Utils.sol b/contracts/account/utils/draft-ERC4337Utils.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.3.0) (account/utils/draft-ERC4337Utils.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (account/utils/draft-ERC4337Utils.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/crosschain/CrosschainLinked.sol b/contracts/crosschain/CrosschainLinked.sol
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (crosschain/CrosschainLinked.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/crosschain/bridges/BridgeERC20.sol b/contracts/crosschain/bridges/BridgeERC20.sol
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (crosschain/bridges/BridgeERC20.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/crosschain/bridges/BridgeERC20Core.sol b/contracts/crosschain/bridges/BridgeERC20Core.sol
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (crosschain/bridges/BridgeERC20Core.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/crosschain/bridges/BridgeERC7802.sol b/contracts/crosschain/bridges/BridgeERC7802.sol
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (crosschain/bridges/BridgeERC7802.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/finance/VestingWallet.sol b/contracts/finance/VestingWallet.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (finance/VestingWallet.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (finance/VestingWallet.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/governance/Governor.sol b/contracts/governance/Governor.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (governance/Governor.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (governance/Governor.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/governance/TimelockController.sol b/contracts/governance/TimelockController.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (governance/TimelockController.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (governance/TimelockController.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/governance/extensions/GovernorStorage.sol b/contracts/governance/extensions/GovernorStorage.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (governance/extensions/GovernorStorage.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (governance/extensions/GovernorStorage.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/governance/utils/Votes.sol b/contracts/governance/utils/Votes.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (governance/utils/Votes.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (governance/utils/Votes.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/governance/utils/VotesExtended.sol b/contracts/governance/utils/VotesExtended.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (governance/utils/VotesExtended.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (governance/utils/VotesExtended.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/interfaces/draft-IERC4337.sol b/contracts/interfaces/draft-IERC4337.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.4.0) (interfaces/draft-IERC4337.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (interfaces/draft-IERC4337.sol)
 
 pragma solidity >=0.8.4;
 
diff --git a/contracts/interfaces/draft-IERC7579.sol b/contracts/interfaces/draft-IERC7579.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (interfaces/draft-IERC7579.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (interfaces/draft-IERC7579.sol)
 
 pragma solidity >=0.8.4;
 
diff --git a/contracts/metatx/ERC2771Context.sol b/contracts/metatx/ERC2771Context.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (metatx/ERC2771Context.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (metatx/ERC2771Context.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/metatx/ERC2771Forwarder.sol b/contracts/metatx/ERC2771Forwarder.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (metatx/ERC2771Forwarder.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (metatx/ERC2771Forwarder.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/package.json b/contracts/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@openzeppelin/contracts",
   "description": "Secure Smart Contract library for Solidity",
-  "version": "5.5.0",
+  "version": "5.6.0-rc.0",
   "files": [
     "**/*.sol",
     "/build/contracts/*.json",
diff --git a/contracts/proxy/ERC1967/ERC1967Proxy.sol b/contracts/proxy/ERC1967/ERC1967Proxy.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Proxy.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (proxy/ERC1967/ERC1967Proxy.sol)
 
 pragma solidity ^0.8.22;
 
diff --git a/contracts/proxy/ERC1967/ERC1967Utils.sol b/contracts/proxy/ERC1967/ERC1967Utils.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.4.0) (proxy/ERC1967/ERC1967Utils.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (proxy/ERC1967/ERC1967Utils.sol)
 
 pragma solidity ^0.8.21;
 
diff --git a/contracts/token/ERC1155/ERC1155.sol b/contracts/token/ERC1155/ERC1155.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC1155/ERC1155.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC1155/ERC1155.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC1155/extensions/ERC1155Supply.sol b/contracts/token/ERC1155/extensions/ERC1155Supply.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC1155/extensions/ERC1155Supply.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC1155/extensions/ERC1155Supply.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC1155/extensions/ERC1155URIStorage.sol b/contracts/token/ERC1155/extensions/ERC1155URIStorage.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC1155/extensions/ERC1155URIStorage.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC1155/extensions/ERC1155URIStorage.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC20/extensions/ERC20Crosschain.sol b/contracts/token/ERC20/extensions/ERC20Crosschain.sol
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: MIT
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC20/extensions/ERC20Crosschain.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/token/ERC20/extensions/ERC20FlashMint.sol b/contracts/token/ERC20/extensions/ERC20FlashMint.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/ERC20FlashMint.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC20/extensions/ERC20FlashMint.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/token/ERC20/extensions/ERC4626.sol b/contracts/token/ERC20/extensions/ERC4626.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC20/extensions/ERC4626.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC20/extensions/ERC4626.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC721/ERC721.sol b/contracts/token/ERC721/ERC721.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC721/ERC721.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC721/ERC721.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC721/extensions/ERC721Enumerable.sol b/contracts/token/ERC721/extensions/ERC721Enumerable.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC721/extensions/ERC721Enumerable.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC721/extensions/ERC721Enumerable.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/token/ERC721/extensions/ERC721URIStorage.sol b/contracts/token/ERC721/extensions/ERC721URIStorage.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (token/ERC721/extensions/ERC721URIStorage.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (token/ERC721/extensions/ERC721URIStorage.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/utils/Arrays.sol b/contracts/utils/Arrays.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/Arrays.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/Arrays.sol)
 // This file was procedurally generated from scripts/generate/templates/Arrays.js.
 
 pragma solidity ^0.8.24;
diff --git a/contracts/utils/Base64.sol b/contracts/utils/Base64.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/Base64.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/Base64.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/utils/Bytes.sol b/contracts/utils/Bytes.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/Bytes.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/Bytes.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/utils/LowLevelCall.sol b/contracts/utils/LowLevelCall.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/LowLevelCall.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/LowLevelCall.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/utils/Memory.sol b/contracts/utils/Memory.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/Memory.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/Memory.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/utils/RLP.sol b/contracts/utils/RLP.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/RLP.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/RLP.sol)
 
 pragma solidity ^0.8.26;
 
diff --git a/contracts/utils/cryptography/ECDSA.sol b/contracts/utils/cryptography/ECDSA.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/cryptography/ECDSA.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/cryptography/ECDSA.sol)
 
 pragma solidity ^0.8.20;
 
diff --git a/contracts/utils/cryptography/MerkleProof.sol b/contracts/utils/cryptography/MerkleProof.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/MerkleProof.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/cryptography/MerkleProof.sol)
 // This file was procedurally generated from scripts/generate/templates/MerkleProof.js.
 
 pragma solidity ^0.8.20;
diff --git a/contracts/utils/cryptography/MessageHashUtils.sol b/contracts/utils/cryptography/MessageHashUtils.sol
@@ -1,5 +1,5 @@
 // SPDX-License-Identifier: MIT
-// OpenZeppelin Contracts (last updated v5.5.0) (utils/cryptography/MessageHashUtils.sol)
+// OpenZeppelin Contracts (last updated v5.6.0-rc.0) (utils/cryptography/MessageHashUtils.sol)
 
 pragma solidity ^0.8.24;
 
diff --git a/contracts/utils/cryptography/SignatureChecker.sol b/contracts/utils/cryptography/SignatureChecker.sol
diff --git a/contracts/utils/cryptography/TrieProof.sol b/contracts/utils/cryptography/TrieProof.sol
diff --git a/contracts/utils/cryptography/draft-ERC7739Utils.sol b/contracts/utils/cryptography/draft-ERC7739Utils.sol
diff --git a/contracts/utils/cryptography/signers/SignerECDSA.sol b/contracts/utils/cryptography/signers/SignerECDSA.sol
diff --git a/contracts/utils/cryptography/signers/SignerEIP7702.sol b/contracts/utils/cryptography/signers/SignerEIP7702.sol
diff --git a/contracts/utils/cryptography/signers/SignerWebAuthn.sol b/contracts/utils/cryptography/signers/SignerWebAuthn.sol
diff --git a/contracts/utils/cryptography/verifiers/ERC7913WebAuthnVerifier.sol b/contracts/utils/cryptography/verifiers/ERC7913WebAuthnVerifier.sol
diff --git a/contracts/utils/math/Math.sol b/contracts/utils/math/Math.sol
diff --git a/contracts/utils/math/SafeCast.sol b/contracts/utils/math/SafeCast.sol
diff --git a/contracts/utils/structs/CircularBuffer.sol b/contracts/utils/structs/CircularBuffer.sol
diff --git a/contracts/utils/structs/DoubleEndedQueue.sol b/contracts/utils/structs/DoubleEndedQueue.sol
diff --git a/contracts/utils/structs/EnumerableMap.sol b/contracts/utils/structs/EnumerableMap.sol
diff --git a/contracts/utils/structs/EnumerableSet.sol b/contracts/utils/structs/EnumerableSet.sol
diff --git a/contracts/utils/structs/Heap.sol b/contracts/utils/structs/Heap.sol
diff --git a/docs/antora.yml b/docs/antora.yml
diff --git a/package.json b/package.json
