v1.7.0

v1.7.0 Release Notes

Base: v1.6.0
Head: staging (9b03493)

For reference: v1.6.0 deployed contracts

Newly Deployed Contracts

Mainnet (L1)

Contract	Networks
ArbitrumReverseResolver	mainnet
BaseReverseResolver	mainnet
LineaReverseResolver	mainnet
OptimismReverseResolver	mainnet
ScrollReverseResolver	mainnet
DefaultReverseRegistrar	mainnet, sepolia, holesky
DefaultReverseResolver	sepolia, holesky
BatchGatewayProvider	mainnet, sepolia, holesky
MigrationHelper (deploy utility)	mainnet, sepolia, holesky

L2 Chains — L2ReverseRegistrar

Network	Testnet
Arbitrum	Arbitrum Sepolia
Base	Base Sepolia
Optimism	Optimism Sepolia
Linea	Linea Sepolia
Scroll	Scroll Sepolia

Redeployed Contracts (modified source)

Contract	Networks
ETHRegistrarController	mainnet, sepolia, holesky
PublicResolver	mainnet, sepolia, holesky
UniversalResolver	mainnet, sepolia, holesky
DefaultReverseResolver	mainnet (modified)
StaticBulkRenewal	mainnet, sepolia, holesky
ExponentialPremiumPriceOracle	holesky
StaticMetadataService	sepolia, holesky
TestUnwrap (test contract)	sepolia, holesky

---

v1.7.0 Changes

215 files changed, ~14k additions, ~11k deletions

New Features / Contracts

• Security Controllers: Added RegistrarSecurityController and RootSecurityController with deploy scripts and tests
• P256 Precompile: Replaced EllipticCurve.sol with EIP-7951 P256Precompile.sol for Algorithm 13 (#509)
• ShuffledGatewayProvider: New gateway provider ShuffledGatewayProvider.sol with tests (#472)
• ResolverCaller: New utility ResolverCaller.sol for resolver interactions (#470)
• ERC7996 support: Added IERC7996.sol interface (renamed from IFeatureSupporter) (#508)
• ICompositeExtendedResolver / IVerifiableResolver: New resolver interfaces ICompositeResolver.sol, IVerifiableResolver.sol (#497)
• LibMem / LibABI: New utility libraries LibMem.sol, LibABI.sol
• ENSIP-24 DataResolver: Added DataResolver.sol and SupportedDataKeys.sol for arbitrary data resolution (#503)
• CCIPBatcher: Fix to respect Lookup with FLAG_DONE in CCIPBatcher.sol (#499)

Infrastructure / Build System

• Hardhat v3 + Rocketh migration: Major migration from Hardhat v2 (hardhat.config.cts) to Hardhat v3 (hardhat.config.ts) with Rocketh (#444)
• Test framework: Migrated tests to Vitest (.test.ts suffix), added vitest.config.ts and test/setup.ts
• Deploy scripts: All rewritten for Rocketh/HH3 compatibility
• Tasks: Converted from .cts to .ts, removed esm_fix and etherscan-multichain

Bug Fixes

• Fixed NameCoder nextLabel logic (#496)
• Fixed NameWrapper deploy script dependencies (#490)
• Fixed forked tests (#485)
• Various deploy script fixes (multicall, shared deploys)

Docs / Misc

• Synchronized UniversalResolver docstrings with ENSIP-23 (#466)
• Fixed typos in comments and docs (#533)
• Added stale bot workflow
• Reverse resolver introspection improvements (#498)

Version Bumps

• v1.6.1 and v1.6.2 version commits are included

Pull Requests

• #444 — Migrate deployment scripts to Hardhat v3 + Rocketh (2025-09-04)
• #469 — Deploy UR update (2025-08-18)
• #470 — Rename IERC7996 and Add ResolverCaller (2025-09-15)
• #472 — Add ShuffledGatewayProvider and tests (2025-09-15)
• #474 — Fixed deploy scripts (2025-08-28)
• #479 — Fix deploy script hooks (2025-09-10)
• #484 — Fix tests after merges (2025-09-15)
• #485 — Fix forked tests (2025-09-25)
• #489 — Add LibMem and Update NameCoder (2025-10-13)
• #490 — Fix NameWrapper Deploy Script Dependencies (2025-10-01)
• #494 — Fix deploy Multicall (2025-10-06)
• #495 — Fix allow shared deploys (2025-10-09)
• #496 — Fix nextLabel logic (2025-10-15)
• #497 — Add ICompositeExtendedResolver and IVerifiableResolver (2025-10-21)
• #498 — Improve Reverse Resolver Introspection (2025-12-08)
• #499 — Make CCIPBatcher respect Lookup w/FLAG_DONE (2025-10-29)
• #504 — Bump buffer (2025-11-26)
• #506 — Add VerifierChanged to IVerifiableResolver (2025-12-08)
• #507 — Add IExtendedDNSResolver to ResolverCaller (2025-12-08)
• #508 — Add IERC7996 support w/o features (2026-01-05)
• #509 — Replace EllipticCurve with EIP-7951 P-256 precompile for Algorithm 13 (2026-01-26)
• #513 — Update hardhat to 3.1.4 (2026-01-20)
• #517 — Security council contracts (2026-02-03)
• #518 — Security controller migrations (2026-02-05)
• #526 — Deploy RegistrarSecurityController and RootSecurityController (2026-03-10)
• #532 — Stale bot (2026-03-10)
• [#533](https://github.com/ensdomains/ens-contracts/pull...

v1.6.0

What's Changed

• add DefaultReverseResolver, ETHReverseResolver, redesign ChainReverseResolver by @adraffy in #432
• feat: new controller by @TateB in #438
• feature(crosschain resolver): simplify reverse resolver by @TateB in #379
• fix: controller updates by @TateB in #450
• Add IFeatureSupporter and resolve(multicall) support by @adraffy in #451
• Refactor BytesUtils and other tests by @adraffy in #457
• Add RegistryUtils by @adraffy in #462
• Make IDNSGateway Importable by @adraffy in #463
• NameCoder Helpers by @adraffy in #459
• Add GatewayProvider by @adraffy in #465
• deploy(mainnet/l2): L2ReverseRegistrar by @TateB in #454
• Change GatewayProvider to OZv5 by @adraffy in #468

Full Changelog: v1.5.2...v1.6.0

v1.5.2

What's Changed

• bug: ABIResolver.ABI() Out of Gas by @adraffy in #441
• Add default fallback to AddrResolver by @adraffy in #442
• Remove Forward Fallback from UniversalResolver by @adraffy in #443
• chore: deploy ur by @TateB in #445

Full Changelog: v1.5.1...v1.5.2

v1.5.1

What's Changed

• Conslidate BytesUtils and NameCoder Implementations by @adraffy in #423
• fix: UniversalResolver.supportsInterface() by @adraffy in #426
• fix: NameCoder disallow literal-0 hashed label by @adraffy in #428
• Relax HexUtils to support unpadded, add ENSIP19.parse() by @adraffy in #436
• Refactor UR into AUR w/findResolver() + Forward Fallback by @adraffy in #427
• Add AbstractUniveralResolver.findResolver() to IUniversalResolver by @adraffy in #440
• chore: deploy new ur by @TateB in #439

Full Changelog: v1.4.0...v1.5.1

v1.4.0

What's Changed

• Update mainnet from staging by @Arachnid in #377
• don't use bunx in postinstall scripts by @talentlessguy in #381
• return abi.encoded values from extended dns resolver by @mdtanrikulu in #382
• Initial revision of MigrationHelper by @Arachnid in #387
• fixup postinstall by running patch-package as a dep by @talentlessguy in #403
• bug: BytesUtils.compare() Arithmetic Overflow by @adraffy in #420
• chore: use triple slash natspec by @TateB in #422
• UniversalResolver w/CCIPBatcher by @adraffy in #421
• Add new deployment of the Universal Resolver by @Arachnid in #424
• fix: mainnet batch gateway urls on UR by @TateB in #425

New Contributors

• @adraffy made their first contribution in #420

Full Changelog: v1.1.6...v1.4.0

v1.3.0-testnet

• feat: Updated BulkRenewal contract with fixed duration, fixed item price, and target expiry options

v1.1.6-testnet

• feat: New ExtendedDNSResolver with support for multiple record types

v1.1.6

• feat: New ExtendedDNSResolver with support for multiple record types

v1.1.5

What's Changed

• fix: universalresolver hybrid onchain/offchain handling by @TateB in #324

Full Changelog: v1.1.4...v1.1.5

v1.1.5-testnet

What's Changed

• fix: universalresolver hybrid onchain/offchain handling by @TateB in #324

Full Changelog: v1.1.4...v1.1.5-testnet