Release v5.0.0 (rc) (#4636)

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

.changeset/afraid-walls-smell.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC1155Receiver`: Removed in favor of `ERC1155Holder`.

.changeset/angry-ties-switch.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`TimelockController`: Changed the role architecture to use `DEFAULT_ADMIN_ROLE` as the admin for all roles, instead of the bespoke `TIMELOCK_ADMIN_ROLE` that was used previously. This aligns with the general recommendation for `AccessControl` and makes the addition of new roles easier. Accordingly, the `admin` parameter and timelock will now be granted `DEFAULT_ADMIN_ROLE` instead of `TIMELOCK_ADMIN_ROLE`. ([#3799](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3799))

.changeset/big-plums-cover.md

@@ -0,0 +1,4 @@
+---
+'openzeppelin-solidity': major
+---
+Use `abi.encodeCall` in place of `abi.encodeWithSelector` and `abi.encodeWithSignature` for improved type-checking of parameters

.changeset/blue-horses-do.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC2771Forwarder`: Added `deadline` for expiring transactions, batching, and more secure handling of `msg.value`.

.changeset/blue-scissors-design.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Math`: Make `ceilDiv` to revert on 0 division even if the numerator is 0

.changeset/brave-lobsters-punch.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Governor`: Refactored internals to implement common queuing logic in the core module of the Governor. Added `queue` and `_queueOperations` functions that act at different levels. Modules that implement queuing via timelocks are expected to override `_queueOperations` to implement the timelock-specific logic. Added `_executeOperations` as the equivalent for execution.

.changeset/bright-tomatoes-sing.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC20`, `ERC721`, `ERC1155`: Deleted `_beforeTokenTransfer` and `_afterTokenTransfer` hooks, added a new internal `_update` function for customizations, and refactored all extensions using those hooks to use `_update` instead. ([#3838](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3838), [#3876](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3876), [#4377](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4377))

.changeset/chilled-spiders-attack.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC1155Supply`: add a `totalSupply()` function that returns the total amount of token circulating, this change will restrict the total tokens minted across all ids to 2\*\*256-1 .

.changeset/clever-bats-kick.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`Ownable`: Prevent using address(0) as the initial owner.

.changeset/clever-pumas-beg.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Ownable`: Add an `initialOwner` parameter to the constructor, making the ownership initialization explicit.

.changeset/config.json

@@ -0,0 +1,12 @@
+{
+  "$schema": "https://unpkg.com/@changesets/config@2.3.0/schema.json",
+  "changelog": [
+    "@changesets/changelog-github",
+    {
+      "repo": "OpenZeppelin/openzeppelin-contracts"
+    }
+  ],
+  "commit": false,
+  "access": "public",
+  "baseBranch": "master"
+}

.changeset/dull-ghosts-sip.md

@@ -0,0 +1,6 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`AccessManager`, `AccessManaged`, `GovernorTimelockAccess`: Ensure that calldata shorter than 4 bytes is not padded to 4 bytes.
+pr: #4624

.changeset/eight-peaches-guess.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Proxy`: Removed redundant `receive` function.

.changeset/eighty-crabs-listen.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+Optimize `Strings.equal`

.changeset/eighty-lemons-shake.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC721`: `_approve` no longer allows approving the owner of the tokenId. `_setApprovalForAll` no longer allows setting address(0) as an operator.

.changeset/empty-cheetahs-hunt.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC721URIStorage`: Allow setting the token URI prior to minting.

.changeset/empty-taxis-kiss.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`UUPSUpgradeable`, `TransparentUpgradeableProxy` and `ProxyAdmin`: Removed `upgradeTo` and `upgrade` functions, and made `upgradeToAndCall` and `upgradeAndCall` ignore the data argument if it is empty. It is no longer possible to invoke the receive function (or send value with empty data) along with an upgrade.

.changeset/fair-humans-peel.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC721URIStorage`, `ERC721Royalty`: Stop resetting token-specific URI and royalties when burning.

.changeset/fifty-owls-retire.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Address`: Removed the ability to customize error messages. A common custom error is always used if the underlying revert reason cannot be bubbled up.

.changeset/flat-bottles-wonder.md

@@ -0,0 +1,7 @@
+---
+'openzeppelin-solidity': minor
+---
+
+Replace some uses of `abi.encodePacked` with clearer alternatives (e.g. `bytes.concat`, `string.concat`). (#4504)[https://github.com/OpenZeppelin/openzeppelin-contracts/pull/4504]
+
+pr: #4296

.changeset/fluffy-countries-buy.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Arrays`: Optimize `findUpperBound` by removing redundant SLOAD.

.changeset/four-adults-knock.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ECDSA`: Use unchecked arithmetic for the `tryRecover` function that receives the `r` and `vs` short-signature fields separately.

.changeset/fresh-birds-kiss.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Checkpoints`: library moved from `utils` to `utils/structs`

.changeset/green-pumpkins-end.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`SafeERC20`: Removed `safePermit` in favor of documentation-only `permit` recommendations.

.changeset/grumpy-bulldogs-call.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Governor`: Optimized use of storage for proposal data

.changeset/grumpy-poets-rush.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Upgradeable Contracts: No longer transpile interfaces, libraries, and stateless contracts.

.changeset/grumpy-worms-tease.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC1967Utils`: Refactor the `ERC1967Upgrade` abstract contract as a library.

.changeset/happy-falcons-walk.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`TransparentUpgradeableProxy`: Admin is now stored in an immutable variable (set during construction) to avoid unnecessary storage reads on every proxy call. This removed the ability to ever change the admin. Transfer of the upgrade capability is exclusively handled through the ownership of the `ProxyAdmin`.

.changeset/healthy-gorillas-applaud.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`VestingWallet`: Use `Ownable` instead of an immutable `beneficiary`.

.changeset/heavy-drinks-fail.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC20`: Remove `Approval` event previously emitted in `transferFrom` to indicate that part of the allowance was consumed. With this change, allowances are no longer reconstructible from events. See the code for guidelines on how to re-enable this event if needed.

.changeset/hip-beds-provide.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Move the logic to validate ERC-1822 during an upgrade from `ERC1967Utils` to `UUPSUpgradeable`.

.changeset/hip-goats-fail.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`VestingWallet`: Fix revert during 1 second time window when duration is 0.

.changeset/hot-coins-judge.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Arrays`: Add `unsafeMemoryAccess` helpers to read from a memory array without checking the length.

.changeset/hot-dingos-kiss.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`MessageHashUtils`: Add a new library for creating message digest to be used along with signing or recovery such as  ECDSA or ERC-1271. These functions are moved from the `ECDSA` library.

.changeset/hot-plums-approve.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`GovernorTimelockControl`: Clean up timelock id on execution for gas refund.

.changeset/large-humans-remain.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`MerkleProof`: Use custom error to report invalid multiproof instead of reverting with overflow panic.

.changeset/lazy-rice-joke.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Initializable`: Use intermediate variables to improve readability.

.changeset/little-falcons-build.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`EIP712`: Add internal getters for the name and version strings

.changeset/loud-shrimps-play.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`TimelockController`: Add a state getter that returns an `OperationState` enum.

.changeset/lovely-geckos-hide.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Replace revert strings and require statements with custom errors.

.changeset/mean-walls-watch.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Nonces`: Added a new contract to keep track of user nonces. Used for signatures in `ERC20Permit`, `ERC20Votes`, and `ERC721Votes`. ([#3816](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3816))

.changeset/mighty-donuts-smile.md

@@ -0,0 +1,6 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`Governor`: Add validation in ERC1155 and ERC721 receiver hooks to ensure Governor is the executor.
+

.changeset/orange-apes-draw.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Switched to using explicit Solidity import statements. Some previously available symbols may now have to be separately imported.

.changeset/pink-suns-mix.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`Math`: Optimized stack operations in `mulDiv`.

.changeset/popular-deers-raise.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Governor`: Add support for casting votes with ERC-1271 signatures by using a `bytes memory signature` instead of `r`, `s` and `v` arguments in the `castVoteBySig` and `castVoteWithReasonAndParamsBySig` functions.

.changeset/pre.json

@@ -0,0 +1,88 @@
+{
+  "mode": "pre",
+  "tag": "rc",
+  "initialVersions": {
+    "openzeppelin-solidity": "4.9.2"
+  },
+  "changesets": [
+    "afraid-walls-smell",
+    "angry-ties-switch",
+    "big-plums-cover",
+    "blue-horses-do",
+    "blue-scissors-design",
+    "brave-lobsters-punch",
+    "bright-tomatoes-sing",
+    "chilled-spiders-attack",
+    "clever-bats-kick",
+    "clever-pumas-beg",
+    "dull-ghosts-sip",
+    "eight-peaches-guess",
+    "eighty-crabs-listen",
+    "eighty-lemons-shake",
+    "empty-cheetahs-hunt",
+    "empty-taxis-kiss",
+    "fair-humans-peel",
+    "fifty-owls-retire",
+    "flat-bottles-wonder",
+    "fluffy-countries-buy",
+    "four-adults-knock",
+    "fresh-birds-kiss",
+    "green-pumpkins-end",
+    "grumpy-bulldogs-call",
+    "grumpy-poets-rush",
+    "grumpy-worms-tease",
+    "happy-falcons-walk",
+    "healthy-gorillas-applaud",
+    "heavy-drinks-fail",
+    "hip-beds-provide",
+    "hip-goats-fail",
+    "hot-coins-judge",
+    "hot-dingos-kiss",
+    "hot-plums-approve",
+    "large-humans-remain",
+    "lazy-rice-joke",
+    "little-falcons-build",
+    "loud-shrimps-play",
+    "lovely-geckos-hide",
+    "mean-walls-watch",
+    "mighty-donuts-smile",
+    "orange-apes-draw",
+    "pink-suns-mix",
+    "popular-deers-raise",
+    "proud-seals-complain",
+    "proud-spiders-attend",
+    "purple-cats-cheer",
+    "purple-squids-attend",
+    "quiet-trainers-kick",
+    "red-dots-fold",
+    "rotten-insects-wash",
+    "serious-books-lie",
+    "short-eels-enjoy",
+    "silly-bees-beam",
+    "six-frogs-turn",
+    "sixty-numbers-reply",
+    "slimy-penguins-attack",
+    "smooth-books-wink",
+    "smooth-cougars-jump",
+    "spicy-sheep-eat",
+    "spotty-hotels-type",
+    "strong-poems-thank",
+    "swift-bags-divide",
+    "swift-numbers-cry",
+    "tasty-tomatoes-turn",
+    "tender-shirts-turn",
+    "thick-pumpkins-exercise",
+    "thin-camels-matter",
+    "tough-drinks-hammer",
+    "two-wasps-punch",
+    "unlucky-beans-obey",
+    "violet-dancers-cough",
+    "violet-melons-press",
+    "warm-guests-rule",
+    "wet-bears-heal",
+    "wild-beds-visit",
+    "wild-peas-remain",
+    "wild-rockets-rush",
+    "wild-windows-trade"
+  ]
+}

.changeset/proud-seals-complain.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`BeaconProxy`: Use an immutable variable to store the address of the beacon. It is no longer possible for a `BeaconProxy` to upgrade by changing to another beacon.

.changeset/proud-spiders-attend.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC721`: Renamed `_requireMinted` to `_requireOwned` and added a return value with the current owner. Implemented `ownerOf` in terms of `_requireOwned`.

.changeset/purple-cats-cheer.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`GovernorTimelockControl`: Add the Governor instance address as part of the TimelockController operation `salt` to avoid operation id collisions between governors using the same TimelockController.

.changeset/purple-squids-attend.md

@@ -0,0 +1,6 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`AccessManager`: Use named return parameters in functions that return multiple values.
+pr: #4624

.changeset/quiet-trainers-kick.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`AccessManager`: Added a new contract for managing access control of complex systems in a consolidated location.

.changeset/red-dots-fold.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Overrides are now used internally for a number of functions that were previously hardcoded to their default implementation in certain locations: `ERC1155Supply.totalSupply`, `ERC721.ownerOf`, `ERC721.balanceOf` and `ERC721.totalSupply` in `ERC721Enumerable`, `ERC20.totalSupply` in `ERC20FlashMint`, and `ERC1967._getImplementation` in `ERC1967Proxy`.

.changeset/rotten-insects-wash.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ProxyAdmin`: Removed `getProxyAdmin` and `getProxyImplementation` getters. ([#3820](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3820))

.changeset/serious-books-lie.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC1155`: Optimize array allocation.

.changeset/short-eels-enjoy.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Bump minimum compiler version required to 0.8.20

.changeset/silly-bees-beam.md

@@ -0,0 +1,7 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC20Votes`: Changed internal vote accounting to reusable `Votes` module previously used by `ERC721Votes`. Removed implicit `ERC20Permit` inheritance. Note that the `DOMAIN_SEPARATOR` getter was previously guaranteed to be available for `ERC20Votes` contracts, but is no longer available unless `ERC20Permit` is explicitly used; ERC-5267 support is included in `ERC20Votes` with `EIP712` and is recommended as an alternative.
+
+pr: #3816

.changeset/six-frogs-turn.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC20`: Remove the non-standard `increaseAllowance` and `decreaseAllowance` functions.

.changeset/sixty-numbers-reply.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Governor`: Add `voter` and `nonce` parameters in signed ballots, to avoid forging signatures for random addresses, prevent signature replay, and allow invalidating signatures. Add `voter` as a new parameter in the `castVoteBySig` and `castVoteWithReasonAndParamsBySig` functions.

.changeset/slimy-penguins-attack.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`TransparentUpgradeableProxy`: Removed `admin` and `implementation` getters, which were only callable by the proxy owner and thus not very useful. ([#3820](https://github.com/OpenZeppelin/openzeppelin-contracts/pull/3820))

.changeset/smooth-books-wink.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ERC1155`: Remove check for address zero in `balanceOf`.

.changeset/smooth-cougars-jump.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`ReentrancyGuard`, `Pausable`: Moved to `utils` directory.

.changeset/spicy-sheep-eat.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`access`: Move `AccessControl` extensions to a dedicated directory.

.changeset/spotty-hotels-type.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC721Consecutive`: Add a `_firstConsecutiveId` internal function that can be overridden to change the id of the first token minted through `_mintConsecutive`.

.changeset/strong-poems-thank.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`DoubleEndedQueue`: refactor internal structure to use `uint128` instead of `int128`. This has no effect on the library interface.

.changeset/swift-bags-divide.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`Governor`: Add a mechanism to restrict the address of the proposer using a suffix in the description.

.changeset/swift-numbers-cry.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`Governor`, `Initializable`, and `UUPSUpgradeable`: Use internal functions in modifiers to optimize bytecode size.

.changeset/tasty-tomatoes-turn.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Strings`: Rename `toString(int256)` to `toStringSigned(int256)`.

.changeset/tender-shirts-turn.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`BeaconProxy`: Reject value in initialization unless a payable function is explicitly invoked.

.changeset/thick-pumpkins-exercise.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Initializable`: Use the namespaced storage pattern to avoid putting critical variables in slot 0. Allow reinitializer versions greater than 256.

.changeset/thin-camels-matter.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`ERC1155`: Bubble errors triggered in the `onERC1155Received` and `onERC1155BatchReceived` hooks.

.changeset/tough-drinks-hammer.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC1155`: Optimize array accesses by skipping bounds checking when unnecessary.

.changeset/two-wasps-punch.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+`AccessControl`: Add a boolean return value to the internal `_grantRole` and `_revokeRole` functions indicating whether the role was granted or revoked.

.changeset/unlucky-beans-obey.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC2771Context`: Return the forwarder address whenever the `msg.data` of a call originating from a trusted forwarder is not long enough to contain the request signer address (i.e. `msg.data.length` is less than 20 bytes), as specified by ERC-2771.

.changeset/violet-dancers-cough.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': minor
+---
+
+Remove the `override` specifier from functions that only override a single interface function.

.changeset/violet-melons-press.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`GovernorTimelockAccess`: Added a module to connect a governor with an instance of `AccessManager`, allowing the governor to make calls that are delay-restricted by the manager using the normal `queue` workflow.

.changeset/warm-guests-rule.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': patch
+---
+
+`ERC2771Context`: Prevent revert in `_msgData()` when a call originating from a trusted forwarder is not long enough to contain the request signer address (i.e. `msg.data.length` is less than 20 bytes). Return the full calldata in that case.

.changeset/wet-bears-heal.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+Upgradeable contracts now use namespaced storage (EIP-7201).

.changeset/wild-beds-visit.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`GovernorStorage`: Added a new governor extension that stores the proposal details in storage, with an interface that operates on `proposalId`, as well as proposal enumerability. This replaces the old `GovernorCompatibilityBravo` module.

.changeset/wild-peas-remain.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Votes`: Use Trace208 for checkpoints. This enables EIP-6372 clock support for keys but reduces the max supported voting power to uint208.

.changeset/wild-rockets-rush.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`Math`: Renamed members of `Rounding` enum, and added a new rounding mode for "away from zero".

.changeset/wild-windows-trade.md

@@ -0,0 +1,5 @@
+---
+'openzeppelin-solidity': major
+---
+
+`SafeERC20`: Refactor `safeDecreaseAllowance` and `safeIncreaseAllowance` to support USDT-like tokens.

.codecov.yml

@@ -0,0 +1,12 @@
+comment: off
+github_checks:
+  annotations: false
+coverage:
+  status:
+    patch:
+      default:
+        target: 95%
+        only_pulls: true
+    project:
+      default:
+        threshold: 1%

.editorconfig

@@ -6,7 +6,16 @@ root = true
 [*]
 charset = utf-8
 end_of_line = lf
-indent_size = 2
 indent_style = space
 insert_final_newline = true
-trim_trailing_whitespace = true
+trim_trailing_whitespace = false
+max_line_length = 120
+
+[*.sol]
+indent_size = 4
+
+[*.js]
+indent_size = 2
+
+[*.{adoc,md}]
+max_line_length = 0

.eslintrc

@@ -1,58 +1,20 @@
 {
+  "root": true,
   "extends" : [
-    "standard",
-    "plugin:promise/recommended",
-  ],
-  "plugins": [
-    "mocha-no-only",
-    "promise",
+    "eslint:recommended",
+    "prettier",
   ],
   "env": {
-    "browser" : true,
-    "node"    : true,
-    "mocha"   : true,
-    "jest"    : true,
+    "es2022": true,
+    "browser": true,
+    "node": true,
+    "mocha": true,
   },
   "globals" : {
-    "artifacts": false,
-    "contract": false,
-    "assert": false,
-    "web3": false,
-  },
-  "rules": {
-
-    // Strict mode
-    "strict": ["error", "global"],
-
-    // Code style
-    "camelcase": ["error", {"properties": "always"}],
-    "comma-dangle": ["error", "always-multiline"],
-    "comma-spacing": ["error", {"before": false, "after": true}],
-    "dot-notation": ["error", {"allowKeywords": true, "allowPattern": ""}],
-    "eol-last": ["error", "always"],
-    "eqeqeq": ["error", "smart"],
-    "generator-star-spacing": ["error", "before"],
-    "indent": ["error", 2],
-    "linebreak-style": ["error", "unix"],
-    "max-len": ["error", 120, 2],
-    "no-debugger": "off",
-    "no-dupe-args": "error",
-    "no-dupe-keys": "error",
-    "no-mixed-spaces-and-tabs": ["error", "smart-tabs"],
-    "no-redeclare": ["error", {"builtinGlobals": true}],
-    "no-trailing-spaces": ["error", { "skipBlankLines": false }],
-    "no-undef": "error",
-    "no-use-before-define": "off",
-    "no-var": "error",
-    "object-curly-spacing": ["error", "always"],
-    "prefer-const": "error",
-    "quotes": ["error", "single"],
-    "semi": ["error", "always"],
-    "space-before-function-paren": ["error", "always"],
-
-    "mocha-no-only/mocha-no-only": ["error"],
-
-    "promise/always-return": "off",
-    "promise/avoid-new": "off",
+    "artifacts": "readonly",
+    "contract": "readonly",
+    "web3": "readonly",
+    "extendEnvironment": "readonly",
+    "expect": "readonly",
   }
 }

.gitattributes

@@ -1 +0,0 @@
-*.sol linguist-language=Solidity

.github/ISSUE_TEMPLATE/bug_report.md

@@ -1,16 +1,16 @@
 ---
 name: Bug report
-about: Report a bug in OpenZeppelin
+about: Report a bug in OpenZeppelin Contracts
 
 ---
 
 <!-- Briefly describe the issue you're experiencing. Tell us what you were trying to do and what happened instead. -->
 
-<!-- Remember, this is not a place to ask for help debugging code. For that, we welcome you in the Zeppelin Forum: https://forum.zeppelin.solutions/. -->
+<!-- Remember, this is not a place to ask for help debugging code. For that, we welcome you in the OpenZeppelin Community Forum: https://forum.openzeppelin.com/. -->
 
 **💻 Environment**
 
-<!-- Tell us what version of OpenZeppelin you're using, and how you're using it: Truffle, Remix, etc. -->
+<!-- Tell us what version of OpenZeppelin Contracts you're using, and how you're using it: Truffle, Remix, etc. -->
 
 **📝 Details**
 

.github/ISSUE_TEMPLATE/config.yml

@@ -0,0 +1,4 @@
+contact_links:
+  - name: Questions & Support Requests
+    url: https://forum.openzeppelin.com/c/support/contracts/18
+    about: Ask in the OpenZeppelin Forum

.github/ISSUE_TEMPLATE/feature_request.md

@@ -1,6 +1,6 @@
 ---
 name: Feature request
-about: Suggest an idea for OpenZeppelin
+about: Suggest an idea for OpenZeppelin Contracts
 
 ---
 
@@ -10,5 +10,5 @@ about: Suggest an idea for OpenZeppelin
 **📝 Details**
 <!-- Please describe your feature request in detail. -->
 
-<!-- Make sure that you have reviewed the OpenZeppelin Contributor Guidelines. -->
-<!-- https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/CONTRIBUTING.md -->
+<!-- Make sure that you have reviewed the OpenZeppelin Contracts Contributor Guidelines. -->
+<!-- https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/CONTRIBUTING.md -->

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,22 +1,20 @@
-<!-- 0. 🎉 Thank you for submitting a PR! -->
+<!-- Thank you for your interest in contributing to OpenZeppelin! -->
 
-<!-- 1. Does this close any open issues? Please list them below. -->
+<!-- Consider opening an issue for discussion prior to submitting a PR. -->
+<!-- New features will be merged faster if they were first discussed and designed with the team. -->
 
-<!-- Keep in mind that new features have a better chance of being merged fast if
-they were first discussed and designed with the maintainers. If there is no
-corresponding issue, please consider opening one for discussion first! -->
+Fixes #???? <!-- Fill in with issue number -->
 
-Fixes #
+<!-- Describe the changes introduced in this pull request. -->
+<!-- Include any context necessary for understanding the PR's purpose. -->
 
-<!-- 2. Describe the changes introduced in this pull request. -->
-<!--    Include any context necessary for understanding the PR's purpose. -->
 
-<!-- 3. Before submitting, please make sure that you have:
-  - reviewed the OpenZeppelin Contributor Guidelines
-    (https://github.com/OpenZeppelin/openzeppelin-solidity/blob/master/CONTRIBUTING.md),
-  - added tests where applicable to test new functionality,
-  - made sure that your contracts are well-documented,
-  - run the Solidity linter (`npm run lint:sol`) and fixed any issues,
-  - run the JS linter and fixed any issues (`npm run lint:fix`), and
-  - updated the changelog, if applicable.
--->
+#### PR Checklist
+
+<!-- Before merging the pull request all of the following must be complete. -->
+<!-- Feel free to submit a PR or Draft PR even if some items are pending. -->
+<!-- Some of the items may not apply. -->
+
+- [ ] Tests
+- [ ] Documentation
+- [ ] Changeset entry (run `npx changeset add`)

.github/actions/gas-compare/action.yml

@@ -0,0 +1,49 @@
+name: Compare gas costs
+inputs:
+  token:
+    description: github token
+    required: true
+  report:
+    description: report to read from
+    required: false
+    default: gasReporterOutput.json
+  out_report:
+    description: report to read
+    required: false
+    default: ${{ github.ref_name }}.gasreport.json
+  ref_report:
+    description: report to read from
+    required: false
+    default: ${{ github.base_ref }}.gasreport.json
+
+runs:
+  using: composite
+  steps:
+    - name: Download reference report
+      if: github.event_name == 'pull_request'
+      run: |
+        RUN_ID=`gh run list --repo ${{ github.repository }} --branch ${{ github.base_ref }} --workflow ${{ github.workflow }} --limit 100 --json 'conclusion,databaseId,event' --jq 'map(select(.conclusion=="success" and .event!="pull_request"))[0].databaseId'`
+        gh run download ${RUN_ID} --repo ${{ github.repository }} -n gasreport
+      env:
+        GITHUB_TOKEN: ${{ inputs.token }}
+      shell: bash
+      continue-on-error: true
+      id: reference
+    - name: Compare reports
+      if: steps.reference.outcome == 'success' && github.event_name == 'pull_request'
+      run: |
+        node scripts/checks/compareGasReports.js ${{ inputs.report }} ${{ inputs.ref_report }} >> $GITHUB_STEP_SUMMARY
+      env:
+        STYLE: markdown
+      shell: bash
+    - name: Rename report for upload
+      if: github.event_name != 'pull_request'
+      run: |
+        mv ${{ inputs.report }} ${{ inputs.out_report }}
+      shell: bash
+    - name: Save report
+      if: github.event_name != 'pull_request'
+      uses: actions/upload-artifact@v3
+      with:
+        name: gasreport
+        path: ${{ inputs.out_report }}

.github/actions/setup/action.yml

@@ -0,0 +1,17 @@
+name: Setup
+
+runs:
+  using: composite
+  steps:
+    - uses: actions/setup-node@v3
+      with:
+        node-version: 16.x
+    - uses: actions/cache@v3
+      id: cache
+      with:
+        path: '**/node_modules'
+        key: npm-v3-${{ hashFiles('**/package-lock.json') }}
+    - name: Install dependencies
+      run: npm ci
+      shell: bash
+      if: steps.cache.outputs.cache-hit != 'true'

.github/actions/storage-layout/action.yml

@@ -0,0 +1,55 @@
+name: Compare storage layouts
+inputs:
+  token:
+    description: github token
+    required: true
+  buildinfo:
+    description: compilation artifacts
+    required: false
+    default: artifacts/build-info/*.json
+  layout:
+    description: extracted storage layout
+    required: false
+    default: HEAD.layout.json
+  out_layout:
+    description: storage layout to upload
+    required: false
+    default: ${{ github.ref_name }}.layout.json
+  ref_layout:
+    description: storage layout for the reference branch
+    required: false
+    default: ${{ github.base_ref }}.layout.json
+
+runs:
+  using: composite
+  steps:
+    - name: Extract layout
+      run: |
+        node scripts/checks/extract-layout.js ${{ inputs.buildinfo }} > ${{ inputs.layout }}
+      shell: bash
+    - name: Download reference
+      if: github.event_name == 'pull_request'
+      run: |
+        RUN_ID=`gh run list --repo ${{ github.repository }} --branch ${{ github.base_ref }} --workflow ${{ github.workflow }} --limit 100 --json 'conclusion,databaseId,event' --jq 'map(select(.conclusion=="success" and .event!="pull_request"))[0].databaseId'`
+        gh run download ${RUN_ID} --repo ${{ github.repository }} -n layout
+      env:
+        GITHUB_TOKEN: ${{ inputs.token }}
+      shell: bash
+      continue-on-error: true
+      id: reference
+    - name: Compare layouts
+      if: steps.reference.outcome == 'success' && github.event_name == 'pull_request'
+      run: |
+        node scripts/checks/compare-layout.js --head ${{ inputs.layout }} --ref ${{ inputs.ref_layout }}
+      shell: bash
+    - name: Rename artifacts for upload
+      if: github.event_name != 'pull_request'
+      run: |
+        mv ${{ inputs.layout }} ${{ inputs.out_layout }}
+      shell: bash
+    - name: Save artifacts
+      if: github.event_name != 'pull_request'
+      uses: actions/upload-artifact@v3
+      with:
+        name: layout
+        path: ${{ inputs.out_layout }}

.github/stale.yml

@@ -1,66 +0,0 @@
-# Configuration for probot-stale - https://github.com/probot/stale
-
-# Number of days of inactivity before an Issue or Pull Request becomes stale
-daysUntilStale: 15
-
-# Number of days of inactivity before an Issue or Pull Request with the stale label is closed.
-# Set to false to disable. If disabled, issues still need to be closed manually, but will remain marked as stale.
-daysUntilClose: 15
-
-# Issues or Pull Requests with these labels will never be considered stale. Set to `[]` to disable
-exemptLabels:
-  - on hold
-
-# Set to true to ignore issues in a project (defaults to false)
-exemptProjects: false
-
-# Set to true to ignore issues in a milestone (defaults to false)
-exemptMilestones: false
-
-# Set to true to ignore issues with an assignee (defaults to false)
-exemptAssignees: false
-
-# Label to use when marking as stale
-staleLabel: stale
-
-# Comment to post when marking as stale. Set to `false` to disable
-markComment: >
-  Hi all!
-
-  This Pull Request has not had any recent activity, is it still relevant? If so, what is blocking it?
-  Is there anything we can do to help move it forward?
-
-  Thanks!
-
-
-# Comment to post when removing the stale label.
-# unmarkComment: >
-#   Your comment here.
-
-# Comment to post when closing a stale Issue or Pull Request.
-closeComment: >
-  Hi folks!
-
-  This Pull Request is being closed as there was no response to the previous prompt.
-  However, please leave a comment whenever you're ready to resume, so it can be reopened.
-
-  Thanks again!
-
-
-# Limit the number of actions per hour, from 1-30. Default is 30
-limitPerRun: 30
-
-# Limit to only `issues` or `pulls`
-only: pulls
-
-# Optionally, specify configuration settings that are specific to just 'issues' or 'pulls':
-# pulls:
-#   daysUntilStale: 30
-#   markComment: >
-#     This pull request has been automatically marked as stale because it has not had
-#     recent activity. It will be closed if no further activity occurs. Thank you
-#     for your contributions.
-
-# issues:
-#   exemptLabels:
-#     - confirmed

.github/workflows/actionlint.yml

@@ -0,0 +1,18 @@
+name: lint workflows
+
+on:
+  pull_request:
+    paths:
+      - '.github/**/*.ya?ml'
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Add problem matchers
+        run: |
+          # https://github.com/rhysd/actionlint/blob/3a2f2c7/docs/usage.md#problem-matchers
+          curl -LO https://raw.githubusercontent.com/rhysd/actionlint/main/.github/actionlint-matcher.json
+          echo "::add-matcher::actionlint-matcher.json"
+      - uses: docker://rhysd/actionlint:latest

.github/workflows/changeset.yml

@@ -0,0 +1,28 @@
+name: changeset
+
+on:
+  pull_request:
+    branches:
+      - master
+    types:
+      - opened
+      - synchronize
+      - labeled
+      - unlabeled
+
+concurrency:
+  group: changeset-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    if: ${{ !contains(github.event.pull_request.labels.*.name, 'ignore-changeset') }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Include history so Changesets finds merge-base
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - name: Check changeset
+        run: npx changeset status --since=origin/${{ github.base_ref }}

.github/workflows/checks.yml

@@ -0,0 +1,119 @@
+name: checks
+
+on:
+  push:
+    branches:
+      - master
+      - next-v*
+      - release-v*
+  pull_request: {}
+  workflow_dispatch: {}
+
+concurrency:
+  group: checks-${{ github.ref }}
+  cancel-in-progress: true
+
+env:
+  NODE_OPTIONS: --max_old_space_size=5120
+
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: npm run lint
+
+  tests:
+    runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: 1
+      GAS: true
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - name: Run tests and generate gas report
+        run: npm run test
+      - name: Check linearisation of the inheritance graph
+        run: npm run test:inheritance
+      - name: Check proceduraly generated contracts are up-to-date
+        run: npm run test:generation
+      - name: Compare gas costs
+        uses: ./.github/actions/gas-compare
+        if: github.base_ref == 'master'
+        with:
+          token: ${{ github.token }}
+
+  tests-upgradeable:
+    runs-on: ubuntu-latest
+    env:
+      FORCE_COLOR: 1
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Include history so patch conflicts are resolved automatically
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - name: Copy non-upgradeable contracts as dependency
+        run:
+          cp -rnT contracts node_modules/@openzeppelin/contracts
+      - name: Transpile to upgradeable
+        run: bash scripts/upgradeable/transpile.sh
+      - name: Run tests
+        run: npm run test
+      - name: Check linearisation of the inheritance graph
+        run: npm run test:inheritance
+      - name: Check storage layout
+        uses: ./.github/actions/storage-layout
+        if: github.base_ref == 'master'
+        continue-on-error: ${{ contains(github.event.pull_request.labels.*.name, 'breaking change') }}
+        with:
+          token: ${{ github.token }}
+
+  tests-foundry:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+      - name: Install Foundry
+        uses: foundry-rs/foundry-toolchain@v1
+        with:
+          version: nightly
+      - name: Run tests
+        run: forge test -vv
+
+  coverage:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: npm run coverage
+      - uses: codecov/codecov-action@v3
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}
+
+  slither:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: rm foundry.toml
+      - uses: crytic/slither-action@v0.3.0
+        with:
+          node-version: 18.15
+
+  codespell:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Run CodeSpell
+        uses: codespell-project/actions-codespell@v2.0
+        with:
+          check_hidden: true
+          check_filenames: true
+          skip: package-lock.json,*.pdf

.github/workflows/docs.yml

@@ -0,0 +1,19 @@
+name: Build Docs
+
+on:
+  push:
+    branches: [release-v*]
+
+permissions:
+  contents: write
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: bash scripts/git-user-config.sh
+      - run: node scripts/update-docs-branch.js
+      - run: git push --all origin 

.github/workflows/formal-verification.yml

@@ -0,0 +1,68 @@
+name: formal verification
+
+on:
+  pull_request:
+    types:
+      - opened
+      - reopened
+      - synchronize
+      - labeled
+  workflow_dispatch: {}
+
+env:
+  PIP_VERSION: '3.10'
+  JAVA_VERSION: '11'
+  SOLC_VERSION: '0.8.20'
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  apply-diff:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Apply patches
+        run: make -C certora apply
+
+  verify:
+    runs-on: ubuntu-latest
+    if: github.event_name != 'pull_request' || contains(github.event.pull_request.labels.*.name, 'formal-verification')
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - name: identify specs that need to be run
+        id: arguments
+        run: |
+          if [[ ${{ github.event_name }} = 'pull_request' ]];
+          then
+            RESULT=$(git diff ${{ github.event.pull_request.head.sha }}..${{ github.event.pull_request.base.sha }} --name-only certora/specs/*.spec | while IFS= read -r file; do [[ -f $file ]] && basename "${file%.spec}"; done | tr "\n" " ")
+          else
+            RESULT='--all'
+          fi
+          echo "result=$RESULT" >> "$GITHUB_OUTPUT"
+      - name: Install python
+        uses: actions/setup-python@v4
+        with:
+          python-version: ${{ env.PIP_VERSION }}
+          cache: 'pip'
+      - name: Install python packages
+        run: pip install -r requirements.txt
+      - name: Install java
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: ${{ env.JAVA_VERSION }}
+      - name: Install solc
+        run: |
+          wget https://github.com/ethereum/solidity/releases/download/v${{ env.SOLC_VERSION }}/solc-static-linux
+          sudo mv solc-static-linux /usr/local/bin/solc
+          chmod +x /usr/local/bin/solc
+      - name: Verify specification
+        run: |
+          make -C certora apply
+          node certora/run.js ${{ steps.arguments.outputs.result }} >> "$GITHUB_STEP_SUMMARY"
+        env:
+          CERTORAKEY: ${{ secrets.CERTORAKEY }}

.github/workflows/release-cycle.yml

@@ -0,0 +1,218 @@
+#  D: Manual Dispatch
+#  M: Merge release PR
+#  C: Commit
+#  ┌───────────┐     ┌─────────────┐     ┌────────────────┐
+#  │Development├──D──►RC-Unreleased│  ┌──►Final-Unreleased│
+#  └───────────┘     └─┬─────────▲─┘  │  └─┬────────────▲─┘
+#                      │         │    │    │            │
+#                      M         C    D    M            C
+#                      │         │    │    │            │
+#                     ┌▼─────────┴┐   │   ┌▼────────────┴┐
+#                     │RC-Released├───┘   │Final-Released│
+#                     └───────────┘       └──────────────┘
+name: Release Cycle
+
+on:
+  push:
+    branches:
+      - release-v*
+  workflow_dispatch: {}
+
+concurrency: ${{ github.workflow }}-${{ github.ref }}
+
+jobs:
+  state:
+    name: Check state
+    permissions:
+      pull-requests: read
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - id: state
+        name: Get state
+        uses: actions/github-script@v6
+        env:
+          TRIGGERING_ACTOR: ${{ github.triggering_actor }}
+        with:
+          result-encoding: string
+          script: await require('./scripts/release/workflow/state.js')({ github, context, core })
+    outputs:
+      # Job Flags
+      start: ${{ steps.state.outputs.start }}
+      changesets: ${{ steps.state.outputs.changesets }}
+      promote: ${{ steps.state.outputs.promote }}
+      publish: ${{ steps.state.outputs.publish }}
+      merge: ${{ steps.state.outputs.merge }}
+
+      # Global variables
+      is_prerelease: ${{ steps.state.outputs.is_prerelease }}
+
+  start:
+    needs: state
+    name: Start new release candidate
+    permissions:
+      contents: write
+      actions: write
+    if: needs.state.outputs.start == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: bash scripts/git-user-config.sh
+      - id: start
+        name: Create branch with release candidate
+        run: bash scripts/release/workflow/start.sh
+      - name: Re-run workflow
+        uses: actions/github-script@v6
+        env:
+          REF: ${{ steps.start.outputs.branch }}
+        with:
+          script: await require('./scripts/release/workflow/rerun.js')({ github, context })
+
+  promote:
+    needs: state
+    name: Promote to final release
+    permissions:
+      contents: write
+      actions: write
+    if: needs.state.outputs.promote == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: bash scripts/git-user-config.sh
+      - name: Exit prerelease state
+        if: needs.state.outputs.is_prerelease == 'true'
+        run: bash scripts/release/workflow/exit-prerelease.sh
+      - name: Re-run workflow
+        uses: actions/github-script@v6
+        with:
+          script: await require('./scripts/release/workflow/rerun.js')({ github, context })
+
+  changesets:
+    needs: state
+    name: Update PR to release
+    permissions:
+      contents: write
+      pull-requests: write
+    if: needs.state.outputs.changesets == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # To get all tags
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - name: Set release title
+        uses: actions/github-script@v6
+        with:
+          result-encoding: string
+          script: await require('./scripts/release/workflow/set-changesets-pr-title.js')({ core })
+      - name: Create PR
+        uses: changesets/action@v1
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          PRERELEASE: ${{ needs.state.outputs.is_prerelease }}
+        with:
+          version: npm run version
+          title: ${{ env.TITLE }}
+          commit: ${{ env.TITLE }}
+          body: | # Wait for support on this https://github.com/changesets/action/pull/250
+            This is an automated PR for releasing ${{ github.repository }}
+            Check [CHANGELOG.md](${{ github.repository }}/CHANGELOG.md)
+
+  publish:
+    needs: state
+    name: Publish to npm
+    environment: npm
+    permissions:
+      contents: write
+    if: needs.state.outputs.publish == 'true'
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - id: pack
+        name: Pack
+        run: bash scripts/release/workflow/pack.sh
+        env:
+          PRERELEASE: ${{ needs.state.outputs.is_prerelease }}
+      - name: Upload tarball artifact
+        uses: actions/upload-artifact@v3
+        with:
+          name: ${{ github.ref_name }}
+          path: ${{ steps.pack.outputs.tarball }}
+      - name: Tag
+        run: npx changeset tag
+      - name: Publish
+        run: bash scripts/release/workflow/publish.sh
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+          TARBALL: ${{ steps.pack.outputs.tarball }}
+          TAG: ${{ steps.pack.outputs.tag }}
+      - name: Push tags
+        run: git push --tags
+      - name: Create Github Release
+        uses: actions/github-script@v6
+        env:
+          PRERELEASE: ${{ needs.state.outputs.is_prerelease }}
+        with:
+          script: await require('./scripts/release/workflow/github-release.js')({ github, context })
+    outputs:
+      tarball_name: ${{ steps.pack.outputs.tarball_name }}
+
+  integrity_check:
+    needs: publish
+    name: Tarball Integrity Check
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+      - name: Download tarball artifact
+        id: artifact
+        # Replace with actions/upload-artifact@v3 when
+        # https://github.com/actions/download-artifact/pull/194 gets released
+        uses: actions/download-artifact@e9ef242655d12993efdcda9058dee2db83a2cb9b
+        with:
+          name: ${{ github.ref_name }}
+      - name: Check integrity
+        run: bash scripts/release/workflow/integrity-check.sh
+        env:
+          TARBALL: ${{ steps.artifact.outputs.download-path }}/${{ needs.publish.outputs.tarball_name }}
+
+  merge:
+    needs: state
+    name: Create PR back to master
+    permissions:
+      contents: write
+      pull-requests: write
+    if: needs.state.outputs.merge == 'true'
+    runs-on: ubuntu-latest
+    env:
+      MERGE_BRANCH: merge/${{ github.ref_name }}
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # All branches
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: bash scripts/git-user-config.sh
+      - name: Create branch to merge
+        run: |
+          git checkout -B "$MERGE_BRANCH" "$GITHUB_REF_NAME"
+          git push -f origin "$MERGE_BRANCH"
+      - name: Create PR back to master
+        uses: actions/github-script@v6
+        with:
+          script: |
+            await github.rest.pulls.create({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              head: process.env.MERGE_BRANCH,
+              base: 'master',
+              title: '${{ format('Merge {0} branch', github.ref_name) }}'
+            });

.github/workflows/upgradeable.yml

@@ -0,0 +1,32 @@
+name: transpile upgradeable
+
+on:
+  push:
+    branches:
+      - master
+      - release-v*
+
+jobs:
+  transpile:
+    environment: push-upgradeable
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          repository: OpenZeppelin/openzeppelin-contracts-upgradeable
+          fetch-depth: 0
+          token: ${{ secrets.GH_TOKEN_UPGRADEABLE }}
+      - name: Fetch current non-upgradeable branch
+        run: |
+          git fetch "$REMOTE" master # Fetch default branch first for patch to apply cleanly
+          git fetch "$REMOTE" "$REF"
+          git checkout FETCH_HEAD
+        env:
+          REF: ${{ github.ref }}
+          REMOTE: https://github.com/${{ github.repository }}.git
+      - name: Set up environment
+        uses: ./.github/actions/setup
+      - run: bash scripts/git-user-config.sh
+      - name: Transpile to upgradeable
+        run: bash scripts/upgradeable/transpile-onto.sh ${{ github.ref_name }} origin/${{ github.ref_name }}
+      - run: git push origin ${{ github.ref_name }}