• Isthmus hardfork activates on Superchain.

• EigenLayer introduces Slashing Redistribution.

• ZKsync introduces the Solx compiler.

• SSV Network reaches 100K validators.

Optimism’s Superchain successfully activated the Isthmus hardfork, an upgrade that introduces compatibility with the Pectra upgrade. In addition to supporting Pectra EIPs, the upgrade simplifies op-dispute-mon deployment for operators and introduces a new fee model to better support alternative data availability and ZK-based chains. Notably, the Isthmus hardfork is the first Superchain-wide upgrade, marking the first time major OP Stack chains—including Base, OP Mainnet, Ink, Soneium, and Unichain—have simultaneously adopted a coordinated upgrade. This was made possible by the “hard fork inheritance” mechanism in the OP Stack, which enables chains to automatically adopt shared upgrades.

EigenLayer introduced Redistribution, an opt-in upgrade to its slashing mechanism that allows Actively Validated Services (AVSs) to repurpose and redistribute slashed funds instead of burning them. Slashing is used to penalize operators for violations such as incorrect computation or liveness failures. AVSs can still choose to burn slashed funds. Redistribution enables new use cases like insurance, lending, and performance-based rewards, while improving liquidity. For the initial rollout, only non-ETH assets can be redistributed. The feature is now live on testnets, with a mainnet launch scheduled for June 2025.

ZKsync introduced solx, a new LLVM-based Solidity-to-EVM compiler designed to optimize gas efficiency and reduce the need for manual low-level optimizations in Ethereum smart contracts. solx works across all EVM-compatible chains, eliminates the need for inline assembly, and can be used as a drop-in replacement for the standard Solidity compiler. solx can compile major projects like Uniswap V2 and Solmate. It’s also designed to adapt to future virtual machines like RISC-V if Ethereum’s architecture changes. solx is currently in pre-alpha and not yet production-ready.

SSV Network reached over 100,000 ETH Validators, securing over $8 billion in stake across its distributed validator network. SSV node operators include solo stakers and pooled operators like Lido and EtherFi. SSV Network is a permissionless staking protocol that enables anyone to run a distributed validator node. By splitting validator keys into keyshares and distributing them to multiple nodes, the network enhances Ethereum fault-tolerance and eliminates single points of failure. 

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