Ethereum Fusaka upgrade confirms 12 EIPs, adds leading zero count Operation Code EIP-7939.

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On June 21, according to the summary of the 214th Ethereum Execution Layer Core Developer Meeting (ACDE), this meeting mainly discussed: Fusaka upgrade scope, adding EIP-7939, including a total of 12 EIPs: EIP-7594 (PeerDAS peer-to-peer data availability sampling), EIP-7823 (MODEXP upper limit) , EIP-7825 (transaction gas cap), EIP-7883 (ModExp gas cost increase), EIP-7892 (blob parameter hard fork only), EIP-7917 (Deterministic Proposer Preview), EIP-7918 (Blob base fee is limited by execution cost), EIP-7935 (default gas limit set to XX0M), EIP-7951 (secp256r1 curve precompilation), EIP-7907 (Contract Code Size Measurement and Limit), EIP-7934 (RLP Execution Block Size Limit), EIP-7939 (Leading Zero-Count Opcode). Some of the EIP adjustments include: EIP-7951 requires further testing pricing, EIP-7907 contract size limit is reduced from 256 KB to 48 KB, EIP-7918 Blob base cost is reduced from 2^14 to 2^13, and EIP-7892 maximum blob count parameter is merged into EIP-7594. In terms of testing plans, Fusaka Devnet 2 is scheduled to launch on June 23 and requires at least three sets of CL and EL clients to be ready, with some adjustments postponed to Devnet 3 and an extended testing schedule. In addition, Glamsterdam proposes to add EIP-7745 (Trust Log Index) and EIP-7919 (Pureth, Focused Proposal), among others.

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