Cardano has taken a decisive step towards its long-planned throughput improve: a public Cardano Improvement Proposal (CIP) for “Ouroboros Leios” is now dwell for neighborhood evaluate within the Cardano Foundation’s CIP repository. Announcing the submission on August 27, Input Output’s director of software program structure Nicolas “BeRewt” Biri wrote: “So, right here it’s, we now have a public and submitted CIP for Leios. More than ever, it’s now time for suggestions… it might be too early to rejoice… nevertheless it’s an enormous milestone.”
Cardano’s Leios CIP Goes Public
The pull request, titled “CIP-???? | Ouroboros Leios – Greater Transaction Throughput,” is open as PR #1078 with the “Category: Consensus” label and an preliminary “State: Triage,” indicating it has entered the formal editorial pipeline however has not but been assigned a everlasting quantity. The submission tracks a number of commits refining the draft and hyperlinks to dialogue and implementation supplies, together with a devoted Leios R&D web site and dialogue discussion board.
Notably, the PR lists Intersect as an implementor, underscoring the coordination between analysis, engineering, and requirements processes that Cardano makes use of to advance core protocol modifications. In an on-thread observe, a CIP editor remarked that the doc “appears to be like virtually prepared for merge,” including that editors would probably introduce it and “assign a CIP quantity on the subsequent CIP assembly,” whereas nonetheless placing it by means of the same old evaluate steps.
Leios is positioned as the following vital redesign of Cardano’s Ouroboros consensus, focusing on materially increased throughput whereas preserving the safety ensures that outline the protocol lineage. Prior briefings describe a concurrent construction constructed round specialised block sorts—“enter,” “endorsement,” and “rating”—to parallelize work throughout the community with out collapsing the separation of issues in Ouroboros Praos.
That architectural alternative is supposed to unlock capability whereas sustaining decentralization and censorship resistance. The underlying analysis, first articulated in IOG’s “Ouroboros Leios: design objectives and ideas,” frames the target as “considerably” growing information and CPU throughput by re-architecting the algorithmic dependencies that bottleneck prior variants, whereas additionally exploring options akin to tiered payment service ranges and sooner sync paths. The paper is specific about trade-offs—together with elevated useful resource use and probably increased transaction latency—that are analyzed inside the safety mannequin.
Biri’s announcement contextualized what reviewers ought to count on. He mentioned the crew is “going by means of the outline of the proposal and explains the design decisions and tradeoffs,” and summarized protection areas because the “detailed description of the proposed variant of Leios,” “implementation materials (formal specification, mini protocols description),” “tradeoffs and drawback house,” “potential (optimistic) impression on script finances,” and “resistance to assaults.” He additionally disclosed that the inner “secret roadmap” had focused a pull request by the top of August, and that the draft built-in suggestions round failed transactions whereas aiming for a “extra minimal impression on dApps.
The submission additionally triggered the now-familiar throughput vs. decentralization debate. When a neighborhood member requested what, precisely, warranted celebration, Biri answered: “That we now have a stable and secure design for prime throughput on Cardano.” And when prodded on whether or not Cardano ought to “compromise” in the way in which some sooner chains do, he pushed again: “That’s why we didn’t comply with that street… What we now have is the perfect tradeoff with out sacrifice.”
Responding to a velocity comparability with Solana, he added: “It ain’t and may’t be, due to the completely different safety and mannequin. If we wish to compete velocity sensible with the quickest chains, we have to agree on giving up some decentralisation, price, or reliability dimensions.” The level, echoed within the Leios analysis, is that Cardano’s scaling agenda is bounded by specific security-decentralization constraints the neighborhood has repeatedly prioritized.
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