Cardano (ADA) launched the public testnet for its Leios Scaling Protocol today, June 23. This is the most important technical achievement the network has achieved in years, and comes with ADA reaching its lowest price level in five years.
The test network is named Musashi Dojo, after the 16th-century samurai Miyamoto Musashi. Its five stages map the chapters of Musashi’s Book of Five Rings: Earth, Water, Fire, Wind, and Void, and progress from basic design validation through adversarial testing to mainnet readiness.
Price problem
The launch lands in difficult conditions. The ADA hit a five-year low this month, down about 35% over the past 30 days. Meanwhile, it reached an all-time high of $3.09 on September 2, 2021, and today’s price of $0.16 is 95% below that peak.
The background is dark. First up, the TapTools analytics platform close Earlier this year while Cardano Canceled Singapore Summit 2026. Hoskinson warned of a “wave of failures” among Cardano DeFi projects in the same period.
Cardano has experienced an unusual contradiction. The network continued to charge and move toward its roadmap, but the price wasn’t going anywhere. Leios removes the most pressing technical criticism of the series: that the base layer cannot scale.
Whether the market will reprice during the next five months of testing, or wait for the mainnet, remains the question that defines Cardano’s second half of 2026.
How does Leos work?
Leos It works as an overlay on Cardano’s existing Ouroboros Praos mechanism. When demand rises, the elected slot leader produces an additional “pro block” that travels in parallel with the standard Prowse block.
The upgrade aims to scale Cardano from its current throughput of 4.5 KB/s to 200 KB/s. The official roadmap puts that at 30 to 65 times Prowse’s current levels.
Input and output product manager Carlos Lopez de Lara confirmed that the initial rollout is starting at two to five times current throughput, with the full ceiling available as demand grows.
Leios’ governance proposal has been approved with the support of over 84% of Cardano’s authorized representatives, and Lopez de Lara is targeting a hard fork in November 2026.
Cardano’s 2030 vision calls for expansion from around 800,000 monthly transactions today to over 27 million transactions; The current base layer can’t get there on its own.
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