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@ethereumjs/common v10.1.0

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@holgerd77 holgerd77 released this 06 Nov 17:58
· 27 commits to master since this release
@ethereumjs/[email protected]
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Learn about vigilant mode.
  • Improve paramsCache updates, PR #4091
  • Improve nextHardforkBlockOrTimestamp method, PR #4080
  • Remove Verkle package support, PR #4145

EIP-7594 - PeerDAS - Peer Data Availability Sampling

This release adds support for EIP-7594 PeerDAS, which extends EIP-4844 blob transactions with data availability sampling capabilities. The Common library now includes EIP-7594 configuration and activation for the Osaka hardfork, enabling support for PeerDAS blob transactions with cell proofs and network wrapper version 1.

EIP-7823 - Set upper bounds for MODEXP

EIP-7823 support has been added, introducing an upper bound of 8192 bits (1024 bytes) on each input field (base, exponent, modulus) of the MODEXP precompile. The Common library includes the EIP configuration and activation for Osaka, ensuring MODEXP calls exceeding these limits are properly rejected.

EIP-7825 - Transaction Gas Limit Cap

Support for EIP-7825 has been implemented, introducing a protocol-level cap of 16,777,216 gas (2^24) for individual transactions. The Common library includes the EIP configuration and activation for Osaka, enabling transaction validation against this gas limit cap.

EIP-7883 - ModExp Gas Cost Increase

EIP-7883 support has been added, which increases the gas cost of the MODEXP precompile. The Common library includes the EIP configuration and activation for Osaka, ensuring MODEXP operations use the updated pricing algorithm with increased minimum gas cost and adjusted complexity calculations.

EIP-7918 - Blob base fee bounded by execution cost

EIP-7918 support has been implemented, which imposes that the price of GAS_PER_BLOB blob gas is greater than the price of BLOB_BASE_COST execution gas. The Common library includes the EIP configuration and activation for Osaka, ensuring proper blob fee market functionality.

EIP-7934 - RLP Execution Block Size Limit

Support for EIP-7934 has been added, introducing a protocol-level cap on the maximum RLP-encoded block size to 10 MiB (with a 2 MiB margin for beacon block size). The Common library includes the EIP configuration and activation for Osaka, enabling block size validation.

EIP-7939 - Count leading zeros (CLZ) opcode

EIP-7939 support has been implemented, adding a new opcode CLZ (0x1e) that counts the number of leading zero bits in a 256-bit word. The Common library includes the EIP configuration and activation for Osaka, enabling the use of the CLZ opcode in EVM execution.

EIP-7951 - Precompile for secp256r1 Curve Support

EIP-7951 support has been added, introducing a new precompile at address 0x100 (P256VERIFY) for ECDSA signature verification over the secp256r1 curve. The Common library includes the EIP configuration and activation for Osaka, enabling native support for secp256r1 signatures from modern secure hardware devices.

EIP-7892 - Blob Parameter Only Hardforks

Support for Blob Parameter Only (BPO) hardforks has been implemented according to EIP-7892. BPO hardforks are lightweight protocol upgrades that modify only blob-related parameters (target, max, and blobGasPriceUpdateFraction) without requiring code changes, enabling rapid scaling of blob capacity in response to network demand.

Two BPO hardforks are scheduled alongside Fusaka:

  • BPO 1: Increases blob target to 10 and max to 15 blobs per block
  • BPO 2: Further increases blob target to 14 and max to 21 blobs per block

The Common library now includes BPO hardfork definitions and activation timestamps for testnets (Holešky, Sepolia, Hoodi). The getBlobGasSchedule() method returns the appropriate blob gas schedule parameters based on the active hardfork, automatically handling BPO transitions.

import { Common, Hardfork, Mainnet } from @ethereumjs/common

// Common instance with BPO1 active
const common = new Common({ chain: Mainnet, hardfork: Hardfork.Bpo1 })

// Get blob gas schedule parameters
const schedule = common.getBlobGasSchedule()
// schedule.targetBlobGasPerBlock = 1310720 (10 * 131072)
// schedule.maxBlobGasPerBlock = 1966080 (15 * 131072)
// schedule.blobGasPriceUpdateFraction = 8346193
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