Cardano’s Leios hits 705,000 lines; testnet June 23

Cardano’s Ouroboros Leios has crossed 5,700 development updates and 705,000 lines of code. The protocol is scheduled to run a live testnet on June 23. The ADA token trades near $0.185, about 94% below its September 2021 all-time high of $3.09.

Leios is a next-generation consensus protocol designed to increase the network’s transaction throughput by introducing a block production pipeline that processes transactions in parallel. The protocol is intended to replace or extend the current Ouroboros Praos design.

The codebase growth reflects ongoing work by IOHK engineers and Cardano contributors. Founder Charles Hoskinson described the scale of development as exceeding his expectations, saying, “We’ve done things that we could only have dreamed of when I started the project.” The June 23 testnet will be the first live-environment trial for Leios.

The testnet will operate as a controlled environment to collect performance data, stress test components and identify bugs or security issues before any mainnet deployment. Developers will use testnet results to update the codebase and run further audits.

Market activity for ADA rose ahead of the testnet. Twenty-four-hour trading volume reached $704 million on June 15 and was about $634 million at the time of reporting, compared with a seven-day prior daily average near $455 million. ADA’s price gained roughly 12% over the previous seven days, moving from about $0.165 to a recent intraday high near $0.189, then slipped about 2.2% over 24 hours to around $0.185. The token’s market capitalization is near $6.6 billion, ranking it 17th by market value.

Cardano launched in 2017 and has advanced through multiple upgrades in the Ouroboros family of consensus algorithms. Earlier releases added staking, smart contracts and interoperability; Leios focuses on improving transaction processing performance.