Cardano van Rossem Hard Fork Advances Toward June Ratification

By Khal · · 1 min read

Editorial illustration for: Cardano's van Rossem Hard Fork Advances Toward Ratification This Month
Published Jun 27, 2026, 4:31 p.m. (1 hour ago)

In brief

  • Van Rossem hard fork governance action submitted June 16; DRep approval reached 62.76%, exceeding 60% threshold
  • SPO approval at 31.59%, below 51% requirement; Constitutional Committee votes still pending
  • Multiple exchanges signaled readiness, pushing exchange liquidity readiness to 77.37%
  • Ratification expected June 28 or July 3; enactment could follow July 3 or July 8

Governance Progress and Voting Thresholds

The DRep threshold of 60% has been surpassed, while SPOs have not yet met the 51% threshold and four Constitutional Committee votes remain to meet the 5 out of 7 threshold. This means the upgrade path is clear on one front but still awaiting confirmation from the other two governance bodies.

Current voting progress indicates a potential ratification within the next two epochs. Based on the governance timeline, that translates to potential ratification dates of June 28 or July 3. The potential enactment dates for the van Rossem hard fork are July 3 or July 8, respectively.

Network Readiness and Exchange Adoption

Block production numbers on node version 11 increased to 87% for epoch 639, signaling strong SPO adoption of the latest client software. Multiple major exchanges signaled readiness this week, pushing readiness by liquidity up to 77.37%. These metrics suggest the ecosystem is preparing for the transition.

Scaling and Infrastructure Developments

Beyond the imminent hard fork, Cardano's development roadmap continues advancing. The public testnet for Ouroboros Leios, called Musashi Dojo, was launched this week. Leios is a scaling solution for Cardano that originated as a research paper from Input Output Research a year ago, and the testnet launch marks a major step toward implementation.

Mithril is moving into its next phase as Teragone takes over the workstream, bringing cryptography expertise to the certificate aggregation layer. The RealFi Phase 1 Testnet is expected to go live on July 6, adding another piece to Cardano's infrastructure puzzle.

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