- Cardano‘s Ouroboros Peras update will reduce transaction settlement times to approximately two minutes.
- The upgrade introduces a voting-based chain selection process and certificate system for faster consensus.
- This advancement supports Cardano’s ability to scale and respond more effectively to network demands.
IOG announced a significant upgrade to Cardano’s consensus protocol in a blog post published on April 11, 2025. The new protocol, called Ouroboros Peras, will replace the current Ouroboros Praos system and dramatically accelerate transaction settlement times on the Cardano blockchain. This improvement will reduce transaction finality from the current timeframe to approximately two minutes.
The Peras upgrade represents a major advancement for the Cardano network, focusing on enhancing user experience through faster transaction confirmations. According to the IOG blog post, the new protocol maintains Cardano’s commitment to security and decentralization while providing users with greater confidence in transaction finality.
Faster Settlement Through New Consensus Mechanisms
At the core of Ouroboros Peras is an innovative voting-based chain selection process coupled with a certificate system. These components work together to allow the network to reach rapid consensus on transactions. This approach differs significantly from the previous Praos protocol, enabling the dramatic reduction in settlement times without compromising the network’s foundational security principles.
“This advancement supports Cardano’s scalability and responsiveness to network demands,” notes the IOG blog, highlighting how the upgrade positions the blockchain to handle increasing transaction volumes and user adoption.
Maintaining Security While Improving Performance
The Peras upgrade was carefully designed to preserve Cardano’s robust security model while improving performance metrics. The certificate system provides cryptographic guarantees about transaction finality, giving users greater confidence that their transactions are permanently recorded on the blockchain after the shortened two-minute settlement period.
This development comes as part of Cardano’s ongoing evolution, with Ouroboros Peras building upon the foundations established by previous iterations of the protocol, including Praos. The upgrade demonstrates Cardano’s commitment to addressing practical user needs while maintaining its research-based approach to blockchain development.
The Ouroboros Peras update is scheduled to be implemented on the Cardano network following appropriate testing phases, though specific deployment dates were not mentioned in the announcement.
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