Cardano Prepares Major Node Changes as Dijkstra Era Takes Shape

Dijkstra introduces major upgrades, including Ouroboros Leios, which brings new updatable protocol parameters.

Tomiwabold Olajide · 15 Aug 2026 · 5 min read

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Cardano Prepares Major Node Changes as Dijkstra Era Takes Shape

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Tomiwabold Olajide

Sat, 15/08/2026 – 10:00

Dijkstra introduces major upgrades, including Ouroboros Leios, which brings new updatable protocol parameters.

Cardano Prepares Major Node Changes as Dijkstra Era Takes Shape

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Planning for the Cardano Dijkstra era hard fork is on track with no changes to the agreed-upon scope and target dates, Intersect said in its latest report.

Dijkstra’s initial rollout is expected to be done in two phases, with the implementation of Linear Leios with Nested Transactions and Peras, respectively. The current goal of the Haskell node team is to deliver Phase 1 (Nested Transactions and Linear Leios) to Cardano Mainnet by the end of 2026, which will offer an incremental rollout of key Dijkstra capabilities, while Phase 2 (Peras) will be activated in an intra-era hard fork scheduled for Q2 2027.

Happy Friday! The Weekly Update #124 is out.

Dijkstra progress, CAP is live, MLabs wraps three projects, and a vote to keep the Constitutional Committee whole.

Catch up on the Intersect overview of this week in Cardano👇https://t.co/vqrxMfRWC0

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An interesting development around Dijkstra is the continued progress of alternative Cardano node implementations. This is important because node diversity can give Cardano increased resilience by reducing dependence on a single implementation.

Cardano governance update taking shape

Cardano is preparing a small, purely technical update to its Constitution ahead of the Dijkstra era, so the network’s newest capabilities are fully governable from day one.