We are upgrading our Aleo Mainnet infrastructure to snarkOS v4.9.1.
This release introduces a consensus-level change to smart contract deployment limits, replacing dynamic density-based limits with static constants. A mainnet consensus version activation is scheduled for block height 21,342,000 (predicted August 24, 2026). All nodes must be upgraded before this activation height to remain synchronized with the canonical chain.
During the maintenance window, brief interruptions to RPC availability may occur.
RPC Changes: - Smart contract deployment limits — Maximum deployment variables and constraints are now enforced by static constants (MAX_DEPLOYMENT_VARIABLES_V2 and MAX_DEPLOYMENT_CONSTRAINTS_V2, both set to 2^22 / 4,194,304). Deployment requests exceeding these limits will be rejected; users should verify their smart contract complexity does not exceed the new static ceiling.