Boom: EVM and Protocol Upgrades

Abstract

Add support for a subset of protocol-impacting changes introduced in the Ethereum Foundation (ETH) network via the Constantinople, St. Petersburg and Istanbul hardforks. The proposed changes for NewChain's Expansion upgrade include:

• Bitwise shifting instructions in EVM
• Skinny CREATE2
• EXTCODEHASH opcode
• Net gas metering for SSTORE without dirty maps
• Add Blake2 compression function F precompile
• Reduce alt_bn128 precompile gas costs
• Add ChainID opcode
• Repricing for trie-size-dependent opcodes
• Calldata gas cost reduction
• Rebalance net-metered SSTORE gas cost with consideration of SLOAD gas cost change

This document proposes the following blocks at which to implement these changes in the NewChain networks:

• 17181218 on NewChain testnet
• 18500000 on NewChain mainnet

Specification

Technical specifications for each EIP can be found at those documents respectively:

• EIP-145: Bitwise shifting instructions in EVM
• EIP-1014: Skinny CREATE2
• EIP-1014: EXTCODEHASH opcode
• EIP-1283: Net gas metering for SSTORE without dirty maps
• EIP-152: Add Blake2 compression function F precompile
• EIP-1108: Reduce alt_bn128 precompile gas costs
• EIP-1344: Add ChainID opcode
• EIP-1884: Repricing for trie-size-dependent opcodes
• EIP-2028: Calldata gas cost reduction
• EIP-2200: Rebalance net-metered SSTORE gas cost with consideration of SLOAD gas cost change

v1.8.26-newton-1.1

• Modify the signature algorithm from secp256-k1 to secp256-r1
• Modify some of the limiting parameters, including maxPrice and SuggestPrice
• The consensus algorithm uses PoA, and the block interval is 3 seconds