Base has officially launched Azul - its first independent upgrade
The Azul upgrade was deployed yesterday, May 28, 2026, on the
@base mainnet. This is the first step toward building its own independent infrastructure stack, separate from
@Optimism.
What does this mean?
1. Significantly higher security and the first step toward Stage 2
• Multiproofs have been implemented - a combination of TEE and ZK provers.
• Now, a single prover is enough to finalize a block, and when both agree, withdrawals to the main network can happen much faster.
• This significantly increases network resilience: an attacker would need to compromise multiple independent systems at once. ZK proofs are permissionless and can override TEE in case of disagreement.
2. Significant performance improvement
Full transition to new high-performance clients:
• base-reth-node base-consensus.
The network is already showing peaks of up to 5000 TPS and almost complete absence of empty blocks.
3. Improvements for developers and compatibility
Alignment with Ethereum Osaka:
• Added CLZ opcode.
• Repricing of operations (Osaka repricings).
• EIP-7825 (gas limit per transaction) and other optimizations.
How the upgrade affects network users:
• Regular users - nothing needs to be done.
• The network has become faster, safer, and better prepared for the global onchain economy.
• Node operators must update their clients (base-reth-node base-consensus).
• Most dApps will continue to work without changes, but developers should check their code if they use MODEXP, large transactions, or Flashblocks.
Azul is a major milestone. The Base network is now even faster and more secure, and officially declares that it is ready to become the home of global finance.