Cardano Dijkstra targets 2026 Leios, 2027 Peras rollout

Cardano’s Dijkstra upgrade remains on its agreed technical scope and schedule, with developers targeting Linear Leios and Nested Transactions in the first phase before a separate Peras activation in 2027. Summary Cardano’s Dijkstra Phase 1 targets mainnet by year-end with Linear Leios and Nested Transactions included. Peras activation is planned for Q2 2027 through a separate intra-era hard fork on mainnet. Amaru currently validates and syncs to tip, with mainnet block production targeted for November 2026. Cardano plans one constitutional amendment adding Dijkstra parameters, targeted for submission by September 11, 2026. Dijkstra’s first phase also prepares Peras codecs and parameters before the protocol activates next year. Intersect said in its Aug. 14 update that planning is now shifting toward ecosystem readiness, testnet reporting and support for alternative node implementations. The latest official roadmap divides Dijkstra into two phases. Phase 1 introduces the new Dijkstra ledger era and Linear Leios, with a Q4 2026 code-completion target. Phase 2 activates Ouroboros Peras through an intra-era hard fork targeted for Q2 2027. The published schedule explicitly says those da...