• EIP-3074 added to the Pectra upgrade.

• Six new AVSs go live on EigenLayer.

• ERC-7683 cross-chain intents standard.

• Chainlink CCIP supports native ETH transfers.

Ethereum core developers agreed to add EIP-3074 to Ethereum's upcoming Pectra upgrade. EIP-3074 introduces the AUTH and AUTHCALL opcodes, allowing Externally Owned Accounts (EOAs) to delegate their control to a smart contract. It enables new capabilities for EOAs, such as batch transactions and sponsored transactions. With EIP-3074, transactions like approving and swapping can be batched together, enhancing the user experience. Core developers also agreed to add EIP-2935, which aims to store historical block hashes in a contract. Last month, Max EB EIP-7251 was added to Pectra. In total, seven EIPs are slated for inclusion in the Pectra upgrade so far.

EigenLayer announced six new Actively Validated Services (AVSs) that are live on mainnet. The new AVSs include AltLayer’s MACH rollups, Brevis' Coprocessor, Eoracle's Ethereum native oracle, Lagrange's State Committee, Witness Chain's DePIN Coordination Layer, and XterioGames MACH restaked rollup. Operators on EigenLayer can now secure the new AVSs, although the mechanisms for rewards and penalties are not yet live. Restakers have the option to delegate their stakes to operators who secure the new services. AVSs are networks that are underpinned by the economic security provided by EigenLayer restakers.

Uniswap, in partnership with Across Protocol, has proposed a new ERC standard for cross-chain intents. The standard is designed to enable fillers from various systems that adopt the standard to participate and fulfill intents, making the process more efficient. It aims to provide users with faster execution and lower fees. Uniswap plans to integrate the ERC into its UniswapX intent-based trading protocol. Intents are signed constraints that allow users to outsource their orders to a network of independent fillers. The fillers not only compete to fulfill orders but also manage order routing and handle the native gas fees with different destination chains. The ERC, assigned as ERC-7683, is open for feedback.

Chainlink's Cross-Chain Interoperability Protocol (CCIP) now supports the transfer of native Ethereum (ETH) across Ethereum, Arbitrum, and Optimism. CCIP facilitates three token transfer mechanisms, including burn and mint, lock and mint, and lock and unlock. Native ETH transfers use the lock and unlock mechanism. The process involves wrapping ETH into WETH, locking it, and then unlocking an equal amount of WETH on the destination network where it can be unwrapped back into ETH. Bridging ETH through CCIP incurs a percentage-based fee, which is part of a new pricing strategy aiming to capture higher transaction volume.

Circle launched a new smart contract functionality that enables holders of the BlackRock USD Institutional Digital Liquidity Fund (BUIDL) to convert their shares into USDC. The update is designed to provide BUIDL investors with a fast and low-cost method for exchanging their shares. The BUIDL Fund, which is a tokenized fund on Ethereum, provides accredited investors access to USD yields.

• Conduit supports EigenDA

• ArbitrumDAO truns one

• Omni announces its Genesis Airdrop

• Coinbase recognition letter from FinCEN

• SIP-377: Add aUSDc collateral

• Nektar announces restaking network

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• Uniswap receives a Wells notice from the SEC.

• Chainlink Functions go live on Base.

• Layer N launches its phase 1 testnet.

• Swell opens deposits for its L2 network.

Uniswap Labs received a Wells notice from the SEC, indicating the regulatory agency’s intention to bring an enforcement action against the decentralized exchange. Hayden Adams, Uniswap's founder and CEO, expressed his readiness to fight the SEC's move, emphasizing his commitment to defend Uniswap and the broader industry. Marvin Ammori, Uniswap's Chief Legal Officer, said that the SEC’s arguments are weak, adding that the commission does not have the jurisdiction to regulate non-securities assets, lacks the grounds to categorize the Uniswap protocol as either a securities exchange or broker, and that the UNI token does not qualify as a security. This Wells notice is part of a broader pattern of SEC enforcement actions targeting major crypto exchanges like Coinbase, Kraken, and Shapeshift.

Chainlink launched Chainlink Functions on Base, allowing developers to connect smart contracts to APIs for executing trust-minimized computations. Chainlink Functions allow for the retrieval of API data and the execution of custom offchain logic. Developers on Base can now access to the Chainlink Functions Playground to integrate new features into their dapps. Chainlink is a decentralized oracle network that connects smart contracts with external data sources. With over $5.3 billion in assets on its L2 network, Base is now the third-largest rollup by total value locked.

Layer N launched the first phase of its public testnet. Layer N is a L2 network of rollups interconnected through a shared communication and liquidity layer. Layer N supports the deployment of general VMs on its execution layer and uses EigenDA for data availability. Phase one introduces NordVM as the network's first custom VM. Users can now interact with NordVM by bridging and conducting transactions on the rollup. The roadmap for Layer N includes subsequent phases that introduce NEVM and the StateNet communication layer.

Swell Network opened deposits for its L2 network, allowing users to deposit native ETH, stETH, swETH, rswETH, eETH, and ALT tokens. The L2 network, built on Polygon CDK, introduces a restaked rollup architecture that offers native restaking yields and uses rswETH as its native gas fees. The Swell L2 is scheduled for a mainnet rollout in the third quarter of 2024.

• Dune supports Lens Protocol data

• EigenDA hits $500m delegated stake

• DELV launches Hyperdrive testnet

• Reach launches on Base

• Nethermind v1.26.0-exp.4 release

• Plonky3 advancements

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• EigenLayer and EigenDA go live on mainnet.

• Relay launches Canonical +.

• Correlated attestation penalties analysis.

• Aerodrome Slipstream on April 22nd.

EigenLayer, Ethereum's largest restaking protocol with over $13 billion in TVL, has rolled out support for stake delegation, operator registration, and Actively Validated Services (AVS) on mainnet. The release signifies the initial completion of the protocol's three-phase launch. EigenDA, which is EigenLayer’s native data availability solution, is also live on mainnet beta as the inaugural AVS. The launch excludes features for in-protocol payments from AVSs to operators or mechanisms for slashing. Restakers on EigenLayer can delegate their restaked assets to one of the protocol's 200+ registered operators. The final, production-ready version of EigenDA is scheduled for release in the coming weeks, with plans to onboard more AVSs in the coming month.

Relay, an instant liquidity solution for cross-chain bridging, launched Canonical +, a new feature designed to streamline the process of using canonical bridges for large asset transfers. Canonical + simplifies the user experience by removing the need to perform multiple transactions in the typical canonical bridging process. By collecting an upfront fee, Relay directs prepaid gas fees to a relayer who executes the subsequent and final withdrawal transactions. Although canonical bridges are known for their 7-day withdrawal delay, they offer enhanced security and don’t incur additional bridge fees. A Reservoir Dune Analytics dashboard shows that users have left more than $17.8 million in canonical bridge contracts due to not completing their bridging transactions.

Ethereum researcher Toni Wahrstätter conducted a study on the effects of introducing penalties for validators with correlated behavior to discourage the centralization of node operations. Staking operators are incentivized to centralize due to the advantages of economies of scale. To counter centralization, Vitalik Buterin proposed an anti-correlation penalty. The penalty increases based on the number of missed attestations, aiming to deter the aggregation of validator operations. The study revealed that under the proposed penalty system, larger and medium-sized staking operations would incur higher penalties, whereas smaller staking groups would see a reduction in penalties.

Aerodrome, the leading AMM on Base, unveiled plans to launch Slipstream, its concentrated liquidity AMM, on Monday, April 22nd. Designed for low volatility and high trading volume token pairs, Slipstream enables liquidity providers to capture a larger share of the daily transaction volume, increasing their fee earnings. Developed from the UniV3 codebase, Slipstream has already been deployed into Velodrome, the Optimism-native version of the DEX. Aerodrome is the largest DEX on Base with over $664 million in TVL.

• Native USDC live on zkSync

• Base hits 300-400 TPS

• Seeking feedback on EIP-7251

• OP Labs Fault Proof deep dive

• Fabric launches an accelerator

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