Zero Gas Fees? What Surprises Will Ethereum's Pectra Upgrade Bring?
TechFlow Selected TechFlow Selected
Zero Gas Fees? What Surprises Will Ethereum's Pectra Upgrade Bring?
Pectra upgrade is a major update for Ethereum since the 2022 "Merge", scheduled to launch in March 2025.
Navigating Web3 tides with focused insightsAuthor: Jason Nelson
Translation: Baihua Blockchain
Ethereum's Pectra upgrade is scheduled for launch in March 2025, merging the previously planned separate Prague and Electra upgrades to achieve better integration and enhance scalability, efficiency, and usability. The following is the main text:
What is the Ethereum Pectra Upgrade?
The Ethereum Pectra upgrade enhances the network’s scalability, efficiency, and staking flexibility. Pectra expands storage capacity for Layer-2 solutions while reducing fees.
One of Pectra’s most user-friendly improvements is flexible gas payments. On Ethereum, “gas” refers to transaction fees that compensate validators for securing the network. Through account abstraction, Pectra allows users to pay these fees using ERC-20 tokens (such as USDC), no longer limited to ETH. Account abstraction simplifies Ethereum transactions by making wallet functionality more like smart contracts, giving users greater control over transaction execution.
The Pectra upgrade also introduces Peer Data Availability Sampling (PeerDAS), which improves Ethereum’s scalability by allowing nodes to verify data without storing full transaction data, making the network more efficient.
Another improvement is Verkle Trees—a new data structure combining vector commitments and Merkle Trees—that provides Ethereum with a more efficient data storage upgrade. Verkle Trees optimize information storage and verification, significantly reducing the amount of data validators need to store, while enabling fast and secure access to network information.
When Will the Ethereum Pectra Upgrade Happen?
The Ethereum Pectra upgrade is expected to occur around mid-March 2025 and will be implemented in two phases. The first phase will introduce key improvements such as increasing Layer-2 blob capacity from three to six blobs, reducing congestion and fees, while enabling account abstraction to allow stablecoins like DAI and USDC to pay gas fees.
The second phase is expected to roll out by the end of 2025 or early 2026, implementing advanced optimizations including PeerDAS and Verkle Trees to improve data storage and network efficiency.
The previous major Ethereum upgrade, Dencun, occurred on March 13, 2024. It introduced Proto-Danksharding, lowering transaction costs for Layer-2 blockchains by using temporary data units called “binary large objects” (blobs). These blobs reduce reliance on permanent on-chain storage, alleviating network congestion, improving scalability, and laying the foundation for upgrades like Pectra.
How Does the Pectra Upgrade Work?
Key features of Pectra include:
Account Abstraction: This feature supports using multiple tokens (e.g., USDC, DAI) to pay gas fees and enables third-party fee sponsorship.
Smart Contract Optimization (EIP-7692): Enhances efficiency of the Ethereum Virtual Machine (EVM).
Validator Upgrades: EIP-7002: Enables flexible staking withdrawals.
EIP-7251: Increases validator staking limit from 32 ETH to 2048 ETH.
Data Storage Enhancements: Verkle Trees: Reduce storage requirements and improve transaction processing.
PeerDAS: Enhance Layer-2 scalability and reduce network congestion.
The Pectra upgrade introduces several Ethereum Improvement Proposals (EIPs) to enhance wallet usability, staking, and scalability.
EIP-7702: Allows externally owned accounts (EOAs) to temporarily operate as smart contracts, streamlining transactions and replacing the now-deprecated EIP-3074.
EIP-7251: Raises the maximum stake per validator from 32 ETH to 2048 ETH to reduce network congestion.
EIP-7002: Improves validator exit processes, increasing efficiency for staking service providers.
EIP-7742: Enhances Layer-2 scalability by doubling transaction throughput, increasing blob capacity, and lowering fees.
EIP-2537: Introduces cryptographic efficiency improvements.
EIP-2935: Provides a mechanism for on-chain storage of historical block hashes.
EIP-6110: Simplifies the validator deposit process.
How Will the Pectra Upgrade Affect Users?
The Pectra upgrade is expected to benefit Ethereum users in multiple ways, including transaction batching, new recovery options, and new wallet types.
Once the Pectra upgrade goes live, Ethereum users may see lower or even zero gas fees, as third-party services and decentralized applications (dApps) gain the ability to sponsor transaction fees, potentially eliminating them entirely in some cases.
Pectra also introduces new wallet functionalities to improve Ethereum’s usability and accessibility, including:
Transaction Batching: Allows multiple transactions to be bundled into one, reducing costs and increasing efficiency.
Social Recovery: Provides a safety net for lost private keys, enabling trusted contacts to help restore wallet access.
Native Multi-Signature Wallets: Enhances security by requiring multiple approvals before executing transactions, protecting funds from unauthorized access.
Potential Challenges of the Pectra Upgrade
Ethereum developers expect a smooth rollout of Pectra, but key risks remain. According to a June 2024 report by Obol and Liquid Collective, client diversity is an issue, as bugs in dominant clients could compromise network stability. Operator centralization could also increase slashing risks due to staking concentration among a few entities. Reliance on cloud services like AWS and Hetzner brings risks of downtime and security vulnerabilities, affecting validator uptime and network resilience.
Another challenge is that changes to wallet validation in the Pectra upgrade could expose outdated protocols that fail to update promptly to vulnerabilities. Meanwhile, raising staking limits may encourage centralization, concentrating power among larger participants and attracting regulatory scrutiny. Slow adoption of distributed validator technology—which mitigates single points of failure and reduces centralized control risks—could weaken network resilience.
Initial Issues on Testnets
These challenges became apparent in February 2025 when the Pectra upgrade activated on Ethereum’s Holesky testnet but failed to achieve finality (the state where transactions are confirmed and permanently recorded on the blockchain). While this was a setback, “the purpose of testnets is to find issues,” said Georgios Konstantopoulos, general partner and CTO at crypto investment firm Paradigm.
Ethereum developers chose to delay the Pectra release, instead testing the upgrade on a “shadow fork” of the Holesky testnet—a temporary replica that allowed testing to continue while waiting for Holesky to regain finality, which it eventually did on March 10, more than two weeks after the initial activation.
This isn’t the first time an Ethereum upgrade has failed to achieve finality on a testnet; in March 2024, the Dencun upgrade encountered similar problems when going live on the Goerli testnet.
Preparations for the next stage will begin on March 17 with the launch of a testnet specifically designed for the Pectra upgrade, codenamed Hoodi. If all goes well, developers expect Pectra to go live on the mainnet on April 25.
The Future of Ethereum After Pectra
The Pectra upgrade is a significant step in Ethereum’s roadmap, aligning with its long-term vision of scalability, security, and decentralization. As part of Ethereum’s transition toward a more efficient network, Pectra lays the groundwork for future updates.
In January 2025, Ethereum co-founder Vitalik Buterin responded to concerns about ETH price and the economic impact of Layer-2 scaling solutions on the network. Buterin emphasized that Layer-2 networks need to support ETH’s value by burning part of their fees or staking them for community benefit.
“We should clearly think through ETH economics,” Buterin wrote. “We need to ensure ETH continues to appreciate even in a world dominated by Layer-2s, ideally solving multiple models of value accrual.”
Buterin also called for standardized cross-chain functionality, enhanced interoperability, and prioritizing security to prevent censorship on Layer-2 chains. He likened the importance of this moment to being in “wartime mode,” underscoring his determination to confront these challenges and drive Ethereum forward.
Summary
The Pectra upgrade is another major Ethereum update since the 2022 “Merge,” scheduled to launch in March 2025. It significantly improves network performance and user experience through technologies like account abstraction and Verkle Trees, while introducing flexible gas payments and higher staking limits. However, the upgrade also faces challenges such as client diversity and centralization risks. This article provides an in-depth analysis of Pectra’s technical highlights and potential issues, guiding you through a crucial step in Ethereum’s future development.
Join TechFlow official community to stay tuned
Telegram:https://t.me/TechFlowDaily
X (Twitter):https://x.com/TechFlowPost
X (Twitter) EN:https://x.com/BlockFlow_News
Decrypt
