Soroban, Stellar's smart contract platform, is built on three core pillars: performance, sustainability, and security. The article details how Soroban's architecture—leveraging Rust and WebAssembly, implementing conflict-free concurrency, and prioritizing security through design—enables developers to build scalable and secure applications without performance bottlenecks.

Soroban, Stellar's smart contract platform, is designed around three critical pillars: performance, sustainability, and security. For performance, Soroban uses Rust and WebAssembly, implements conflict-free concurrency for true parallel transaction processing, and introduces multi-dimensional fees for efficient block space usage. For sustainability, it features a state archival solution to manage long-term data growth and leverages the Stellar Consensus Protocol to maintain low, stable fees as the network scales—avoiding the fee spirals seen in other blockchains. For security, Soroban is built on Rust's memory safety guarantees, eliminates reentrancy vulnerabilities, and implements a granular authorization framework that simplifies secure development. Together, these design decisions aim to provide developers with a robust foundation for building complex financial applications with confidence.