Sonic 2.1.2 Upgrade Strengthens Network Security

October 23, 2025 – Sonic Labs, the high-performance EVM Layer-1 blockchain, has issued an urgent directive for all mainnet and testnet nodes to upgrade to version 2.1.2 immediately. The update introduces native fee subsidies, essential security enhancements, and key features supporting the upcoming Pectra transition on November 3, 2025, at 15:00 CET.

From Fantom Roots To Sonic’s High-Speed Evolution

Sonic Labs builds upon its Fantom legacy, evolving from the DAG-based consensus model that once achieved 10,000 TPS to today’s 400,000 TPS performance. The Sonic testnet introduced the FeeM model in 2024, rebating 90% of transaction fees to developers—a system that continues to define its ecosystem economics.

Earlier milestones, such as the August 2025 Testnet 2.1 integrating Ethereum’s Pectra features, laid the groundwork for broader interoperability. The Sonic 2.1.2 upgrade refines these advances by addressing security vulnerabilities and preparing the network for higher throughput as institutional tokenization and real-world asset adoption accelerate.

Strengthening Sonic’s Market Position Ahead Of Pectra

The Sonic 2.1.2 upgrade represents a pivotal step in establishing Sonic as a leading EVM-compatible settlement layer for global finance. With account abstraction and improved blob capacity, Pectra readiness is expected to reduce gas costs by up to 30%, enhance scalability, and support gasless transactions.