Aptos: MonoMove is expected to reach feature completeness - Q4 2026

Aptos' new execution engine, MonoMove, is expected to reach feature completeness in Q4 2026. The milestone concerns completion of the engine's planned features ahead of a planned mainnet rollout in 2027.MonoMove is described as Aptos' biggest scalability upgrade, with contract execution cited as up to 55 times faster. Feature completeness would put the engine's specified capabilities in place before deployment, separating development readiness from changes to live network execution. The potential performance improvement depends on the later rollout, rather than on this milestone alone. Actual onchain effects remain contingent on governance-approved activation, so feature completeness does not itself establish that the upgrade is operating on mainnet.