HyperEVM Adopts Dual-Block Architecture—Faster Transactions, Bigger Blocks, and a Bold New Vision

HyperEVM has implemented two major architectural upgrades in its latest testnet update—Dual-Block Architecture for improved transaction efficiency and Sender-Agnostic Token Transfers for expanded functionality.

The changes aim to optimize block speed, transaction scalability, and developer experience on the Hyperliquid Layer 1 blockchain.

Background

• HyperEVM, an Ethereum Virtual Machine (EVM) environment integrated within Hyperliquid’s Layer 1 blockchain, enables developers to run Ethereum-compatible smart contracts with enhanced speed and cost-efficiency.
• Co-founder Jeff announced the latest testnet upgrade on Discord, revealing two significant changes to improve the system’s overall performance and flexibility.

1. Dual-Block Architecture

HyperEVM now splits throughput between:

Small blocks that process transactions at a faster rate for quick confirmations.

Large blocks that operate at a slower rate to accommodate high-value and complex transactions.

The update also introduces separate mempools for each block type, ensuring smoother transaction processing while maintaining on-chain execution integrity.

Initial testnet parameters:

Fast blocks: 2-second duration, 1M gas limit.

Slow blocks: 1-minute duration, 30M gas limit.

2. Sender-Agnostic Token Transfers

Previously, HYPE token transfers were limited to externally owned accounts (EOAs).

Now, a system contract replaces the previous transfer method, allowing smart contracts to initiate HYPE transfers.

The update maintains backward compatibility while adding a minor gas fee for logging transfers.

Why should you pay attention?

• Scalability & Performance: The dual-block system removes the tradeoff between speed and transaction size, benefiting both everyday users and developers.
• Improved Smart Contract Functionality: The new sender-agnostic token transfer system allows automated transactions, expanding DeFi capabilities.
• Testnet Reset & Black Market Response: EVM balances were reset to counter unauthorized black market activities, reinforcing fair use of testnet tokens.

Who said what?

• Hyperliquid Co-Founder Jeff, on testnet optimizations:

“Users want faster blocks for quick confirmations, while builders need larger blocks for complex contract deployments. Instead of a tradeoff, this system allows both.”

• On the token transfer upgrade:

“This change enables smart contracts to send HYPE while maintaining backward compatibility for EOAs.”

• On the testnet balance reset:

“All EVM balances were reset due to previously announced black-market testnet HYPE activity.”

Zooming out

• HyperEVM continues evolving as an Ethereum-compatible blockchain while leveraging Hyperliquid’s high-speed Layer 1 network.
• The dual-block system could influence future EVM architectures, balancing speed and transaction size without compromise.