MultiversX's Supernova Upgrade Decouples Consensus from Execution

Blockchain designs have long struggled with a structural trade-off: when execution is tied directly to consensus, the network's throughput becomes limited by how fast validators can process transactions. To address this issue, MultiversX has developed an upgrade called Supernova that decouples consensus from transaction execution.

The Supernova upgrade reorders the block workflow so proposers submit transaction blocks without executing first, while validators can vote immediately based on protocol validity. This approach allows for asynchronous processing of execution, which trails consensus by roughly one block (about 600 milliseconds).

To preserve validity when execution lags behind, Supernova uses a virtual mempool state that tracks pending nonces, expected balance consumption, and transactions already proposed but not yet executed. Additionally, the Execution-Result Inclusion Estimator limits how many execution results a block can reference, based on what minimum-spec nodes can safely handle.

The upgrade is currently live on testnet and has been producing 600-millisecond blocks since August 20. MultiversX plans to deploy Supernova on mainnet by September 10, 2026. The architecture itself is designed to handle execution lag without forcing every validator to execute first during consensus.