Base activated the Azul network upgrade on mainnet this month — the Layer 2 blockchain's first independent protocol update. The move brings the project closer to Stage 2 decentralization, a widely watched benchmark for L2s. Base, incubated by Coinbase, has been working toward this step since the upgrade launched on the Sepolia testnet on April 21.
Why Azul matters
Azul isn't just another patch. It's Base's first upgrade designed and executed without relying on the Ethereum mainnet's schedule or the OP Stack's default release cycle. That independence is the whole point. Moving toward Stage 2 decentralization means the chain can eventually run without any training wheels — no admin keys that could pause or upgrade the system unilaterally. Azul is a concrete step in that direction, even if full Stage 2 remains a ways off.
Stage 2 in sight
Stage 2 is the gold standard for L2 decentralization under the framework proposed by Ethereum co-founder Vitalik Buterin. It requires that the rollup be fully governed by smart contracts, with no escape hatch controlled by a single party. Base's progress on Azul signals it's serious about getting there. The upgrade itself doesn't deliver Stage 2 overnight, but it clears the path — the team can now iterate on protocol changes without waiting for upstream coordination.
Timeline and next steps
Azul hit Base Sepolia testnet on April 21. Roughly a month later, it went live on mainnet. That's a relatively fast turnaround for an independent upgrade, though the team hasn't published a detailed post-mortem or a roadmap for what comes next. The upgrade is now running in production, and all eyes will be on whether Base can maintain stability while pushing further toward permissionless operation. No word yet on the next milestone, but the decentralized roadmap doesn't stop here.
