MultiversX Supernova Brings 600ms Mainnet Rounds

Key Takeaways

• MultiversX mainnet data showed 600-millisecond rounds on September 10, after the network passed Supernova’s scheduled activation round.
• The upgrade changes timing assumptions for applications and indexers, including how block timestamps are handled.

Mainnet Moves Beyond the Activation Round

MultiversX’s mainnet was running with a 600-millisecond round duration at 19:33 UTC on September 10, 2026, according to its network configuration. That is one-tenth of the previous six-second interval described in the project’s Supernova rollout plan.

The network’s public block data showed shard 1 producing blocks in epoch 2233, beyond round 32,157,661—the activation threshold listed in the official calendar. The configuration also showed 144,000 rounds per epoch.

The calendar, updated September 10, set the switch for 18:06:06 UTC. It lists sub-250-millisecond finality and roughly 2.4-second cross-shard settlement as the upgrade’s performance targets.

For developers, the Supernova builders guide, updated September 9, identifies a specific compatibility change: raw block-header timestamps move from seconds to milliseconds. The public blocks API continues to report seconds, so several blocks can share a timestamp. Applications that assume each new block has a later whole-second timestamp need to account for the faster cadence.

Market Analysis

The shorter round interval gives applications more frequent opportunities to include transactions in blocks. For wallets, exchanges and bridges, the immediate work is adapting indexing and transaction-watching logic to the new timing. The distinction between millisecond block headers and second-based API responses matters for services that combine both data sources.

Note: This article is for news reporting purposes only and does not constitute investment advice.