EIP-7939 proposal for a new Count Leading Zeros (CLZ) opcode has been updated with SP1 rv32im optimization examples. The implementation shows CLZ being cheaper to prove than basic addition operations, providing additional motivation for the opcode's inclusion.

A new proposal combines delayed execution with zkVMs to increase Ethereum's gas limit. The approach assigns proof responsibility to block builders while enabling force-inclusion of proofs in subsequent blocks.

Tether has partnered with Plasma Foundation to introduce zero-fee USDT transfers and launched USDT0 on multiple platforms. The integration includes Eco Routes for accessing liquidity across Ethereum and five Layer 2 networks, and Hyperliquid's DeFi environment with over $140B in liquidity. The implementation uses LayerZero technology and includes features like HyperBridge for USDe and gasless cross-chain stablecoin transfers.

The upcoming EIP Editing Office Hour Meeting 60 will review several ERCs and EIPs, including ERC-7743 moving to Last Call status and multiple new draft proposals. The meeting will be facilitated by @poojaranjan with editor @samWilsn and will cover topics like Margin Token Wrapper, DeFi Protocol Solvency Proof Mechanism, and other protocol improvements.

Technical discussion about the implementation details of the proposed PAY opcode, focusing on gas costs and execution context. Debate centers on matching CALL opcode behavior and handling no-op situations.

OpenZeppelin has released a security audit report for Across Protocol's Linea CCTP implementation. The audit identified low severity issues including unreliable CCTP version checking and insufficient documentation. The report also notes some misleading comments and typographical errors while providing a comprehensive overview of the system's security model and trust assumptions.

A proposal to deprecate BLS-based withdrawal credentials in Ethereum due to quantum computing vulnerabilities. The proposal establishes an Execution Layer recovery mechanism for validators still using 0x00 credentials after post-quantum cryptography becomes available. It introduces a new 0x03 withdrawal credential secured by post-quantum cryptographic keys and requires a hard fork for implementation.

Developers discuss the relationship between EIP-7883 (ModExp Gas Cost Increase) and EIP-7823 (Set Upper Bounds for MODEXP), exploring how the 1024-byte length limit affects gas pricing considerations and performance benchmarks.

A proposal to enhance Ethereum's Proposer-Builder Separation (PBS) by introducing a decentralized and incentive-aligned system using one-time randomness. The goal is to diversify block builders and reduce censorship risk, addressing the current issue where ~80% of blocks are built by just two entities. The proposal introduces a builder_factor to modify base reward calculations and includes a registration system where builders commit random seeds and stake ETH.