Sei: Ares becomes default as Eidos begins Giga mainnet upgrade - 31 Jul 2026

Sei Network's announcement says two of the three major Giga upgrades, Ares and Eidos, have begun on mainnet. Ares becomes the default execution engine, while Eidos starts moving chain history into its own database.The deployment makes Giga an active protocol milestone rather than a future plan. Ares changes the engine used to process execution, while Eidos changes how chain history is stored by moving it into a dedicated database. These changes are directly tied to the network's execution and storage capabilities. The announcement confirms that rollout has started, but it does not demonstrate user adoption or a resulting market effect.Two of the three major upgrades that make up Sei Giga: Eidos and Ares, have begun.This is the start of Giga on mainnet.