Espresso Foundation Upgrades HotShot Protocol on Mainnet
The latest deployment enables block finality within a single view to remove dependencies on subsequent leaders.
Updated on Oct. 29, 2026 in Coffee
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On September 14, 2026, the Espresso Foundation deployed an upgraded HotShot protocol to the mainnet. This change allows blocks to reach finality within a single proposal view, removing the need to wait for subsequent leaders to complete their turns.
Why it matters
The upgrade enhances network efficiency by eliminating reliance on multi-leader sequences for block finality. This adjustment streamlines the consensus process while maintaining security against malicious actors.
The upgraded system supports a peak load of 1 million transactions per second with an average finality speed of 778 milliseconds. It maintains stability by tolerating malicious validators controlling less than one-third of the total stake.
The players
Espresso Foundation
This organization oversees the development and maintenance of decentralized consensus protocols.
The details
By removing the separate data-availability committee, the protocol now utilizes two rounds of voting to achieve finality. The process involves the leader dividing blocks into erasure-coded pieces and distributing them to validators, who then broadcast a second vote after confirming a quorum.
Timeline
September 9, 2026: Validators coordinated the deployment of the system upgrade.
September 14, 2026: The Espresso Foundation officially announced the mainnet deployment.
October 20, 2026: The foundation released detailed documentation regarding the protocol design.
Culture Shift
The Espresso Foundation's work on the HotShot protocol represents a shift toward higher throughput in decentralized networks. This upgrade marks a structural improvement to the HotShot protocol by removing its reliance on secondary data-availability committees.
Users of the platform will experience faster block finalization times during high-traffic periods. This change ensures that transactions are processed with greater efficiency, reducing the overall time required for network interactions.
The takeaway
Optimizing for single-view finality reduces the latency inherent in multi-step consensus models. Participants in decentralized systems should monitor how these efficiency gains hold up as network participation scales.
Further reading
Learn more about the latest developments in the industry at the Coffee section.
Source note: This article includes information reported by TokenPost.
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