Ethereum’s Pectra Upgrade Hits Layer-2 Arbitrum — Is This the Start of the Next Crypto Revolution?

Jakarta, Pintu News – A major update has taken place in the Ethereum ecosystem with the integration of Pectra in Arbitrum, which brings significant changes to the functionality and scalability of the network.

This update, known as ArbOS 40 “Callisto”, has been activated on Arbitrum One and Nova, promising major improvements for developers and users.

ArbOS 40 Update: Alignment with Pectra

ArbOS 40 has rolled out a series of improvements in line with Pectra, Ethereum’s main hard fork activated on May 7, 2025. These updates introduce account abstraction, zk tools, and developer-focused improvements in Ethereum’s largest layer-2 ecosystem.

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By adopting Pectra’s Ethereum Improvement Proposal (EIP), Arbitrum upgraded its infrastructure for smart accounts, validator tools, and more efficient data operations. This allows the Arbitrum network to significantly improve its performance, utility, and scalability.

Developers can now access the new primitives across all supported chains, ensuring that applications can operate more efficiently and effectively. These updates ensure that Arbitrum remains a top choice for developers looking for scalable and low-cost solutions in the Ethereum (ETH) environment.

EIP-7702: Smart Account Feature in Arbitrum

The EIP-7702 integration enables executable code in External Owned Accounts (EOA) during transactions in Arbitrum. It introduces features such as transaction grouping, sponsored fees, and allowed sub-keys in layer-2.

This feature provides immediate benefits to developers and users, expanding the account capabilities they can utilize. This change marks a shift in the functionality of Ethereum (ETH) accounts, which can now be used through the Arbitrum ecosystem.

The Ethereum Pectra update makes these tools widely available on the layer-2 chain, supporting advanced use cases with minimal bottlenecks. Developers can test, deploy, and maintain abstraction-enabled smart accounts on Arbitrum One and Nova.

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EIP-2537 and EIP-2935 upgrades: zk Tools and Trustless Access

EIP-2537 introduces BLS12-381 precompilation, which improves zk proof compatibility and signature validation speed. This is beneficial for zero-knowledge rollups operating in Arbitrum.

By adding BLS native operations, the Ethereum Pectra Update increases trust and efficiency. In addition, ArbOS 40 includes EIP-2935, which gives access to the latest L2 block hashes. It supports stateless clients, oracles, and verifiable messaging protocols.

Developers can now build more reliable applications using past data directly.

Overall, the ArbOS 40 update and the integration of Pectra in Arbitrum mark an important step in the evolution of the Ethereum (ETH) ecosystem. With these upgrades, Arbitrum not only improves its functionality and operational efficiency, but also strengthens its position as a leader in blockchain innovation.

Developers and users around the world will benefit from new tools and features that enable wider and more efficient implementation of blockchain-based applications.

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Reference:

• CoinCentral. Ethereum’s Pectra Hits Arbitrum: A Quiet Shift with Big Implications. Accessed on June 20, 2025
• U.Today. Ethereum’s Pectra Upgrade Arrives on Layer 2 Arbitrum. Accessed on June 20, 2025