Features of Pectra upgrade

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EIP-2537, integrated into Arbitrum through the ArbOS 40 upgrade, introduces precompiles for the BLS12-381 elliptic curve, enhancing the efficiency and security of cryptographic operations and improving zero-knowledge proof compatibility and signature validation speed
EIP-2935, included in the upgrade on Arbitrum, enables access to recent Layer-2 block hashes, enhancing trustless historical data retrieval and supporting stateless clients, oracle synchronization, and verifiable messaging protocols
The ArbOS 40 upgrade on Arbitrum includes a fix to the Stylus VM that resolves cache lookup issues related to non-existent contracts, enhancing Rust-based development and improving tooling consistency under the Ethereum Pectra upgrade
EIP-7702, introduced through the Pectra upgrade on Arbitrum, allows externally owned accounts (EOAs) to temporarily include executable code during transactions, enabling advanced account abstraction features such as transaction batching, sponsorship, delegation and sub-key permission control on Layer-2

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