Cardano Announces Major Protocol Upgrade Targeting Scalability and Throughput Improvements

San Francisco, July 13, 2026 — Cardano has formally announced a major protocol upgrade targeting persistent throughput and smart contract scalability limitations. The network currently processes 250–300 transactions per second, compared to competing Layer 1 and Layer 2 solutions operating at significantly higher rates. Trading volumes reached $1.2–1.8 billion in 24-hour exchange activity following the announcement.

The upgrade targets a 3x throughput improvement to approximately 750–900 TPS, alongside Plutus smart contract optimizations designed to reduce developer friction and lower transaction costs. Input Output Global (IOG), the protocol's primary development organization, has outlined a three-phase deployment timeline: testnet launch in Q4 2026, a community governance vote requiring 75%+ approval, and mainnet deployment targeting Q1 2027. The specifications represent Cardano's most ambitious technical overhaul since the Alonzo upgrade introduced smart contract functionality in September 2021.

Competitive Context

Even at the 750–900 TPS target, Cardano would remain behind Starknet's post-Shinobi Phase 4 throughput of 4,000–6,000 TPS and Solana's 65,000 TPS following the Firedancer client upgrade. IOG positions the upgrade's differentiation on formal verification rigor, regulatory compliance infrastructure, and institutional-grade security—characteristics that have supported government partnerships and central bank digital currency exploration in select markets.

Cardano's 62–68% staking participation rate—among the highest among major proof-of-stake protocols—reduces circulating supply pressure during volatile market periods. ADA's market capitalization stands at $18–22 billion, with the token trading between $0.72–$0.89 year-to-date, representing an 85–135% gain over the period.

Ecosystem and Adoption

Cardano's DeFi TVL of $280–350 million is concentrated in Minswap ($95–120 million), SundaeSwap, and Liqwid lending protocols, representing approximately 0.8% of total crypto DeFi TVL. The protocol's 2,100–2,400 active smart contract developers, growing 18% year-over-year, provides a foundation for ecosystem expansion, though the figure trails Ethereum's 12,000+ active developers.

Real-world asset tokenization represents a key institutional focus area. Cardano's Atala identity infrastructure and formal verification approach position it as a regulatory-compliant option for asset managers and financial institutions exploring on-chain settlement. Coinbase Custody provides custodial infrastructure for institutional participants.

Execution Risks

The upgrade carries material execution risk. The Vasil upgrade in September 2022 was delayed six months and delivered throughput gains from approximately 200 TPS to the current 250–300 TPS baseline, against an initial 2–3x improvement target. The Babbage upgrade in February 2024 similarly fell short of smart contract optimization targets.

IOG has announced engagement with three independent security auditors and a $5–10 million bug bounty program. A staged rollout—testnet, canary mainnet, full mainnet—is planned to reduce deployment risk. The governance vote requirement provides a community checkpoint prior to mainnet commitment.

Regulatory uncertainty around staking-as-a-service, following SEC enforcement actions against Kraken and Coinbase staking programs, represents a risk that could affect staking participation rates and reduce a key competitive differentiator.

About Cardano Foundation

The Cardano Foundation is an independent Swiss-based organization overseeing the development and adoption of the Cardano blockchain protocol, launched in 2017. The protocol operates on a peer-reviewed, research-first development methodology through collaboration with IOG and EMURGO. Cardano's Ouroboros proof-of-stake consensus mechanism supports 62–68% staking participation across approximately 3,000 active stake pools, with a developer ecosystem of 2,100–2,400 active contributors and $280–350 million in DeFi TVL. Further information is available at cardanofoundation.org.