Stylus Upgrades

Contents

• Stylus Upgrade Model
• Proxy Patterns
• Access Control
• Upgrade Safety

Stylus Upgrade Model

Stylus contracts run on Arbitrum as WebAssembly (WASM) programs alongside the EVM. They share the same state trie, storage model, and account system as Solidity contracts. Because of this, EVM proxy patterns work identically for Stylus — a Solidity proxy can delegate to a Stylus implementation and vice versa.