BSC mainnet officially launched
The smart contract chapter
Binance Smart Chain mainnet launched as a parallel chain to Binance Chain, introducing smart contracts, EVM compatibility, and cross-chain mechanisms to provide a foundation for DeFi applications.
How it happened
Binance Chain's original architecture prioritized high-throughput trading and provided limited support for complex decentralized applications. A parallel-chain approach was chosen to retain the existing network while adding smart-contract capabilities. The team published a mainnet launch announcement on September 1, clarifying BSC's development orientation.
What it changed
The mainnet launch expanded the BNB ecosystem from a transaction-focused infrastructure to a programmable application platform, creating a common foundation for DeFi, wallets, cross-chain assets, and developer tools. Binance Chain and BSC thereby established a parallel, collaborative relationship.