Crypto News
Intersect submitted the van Rossem hard fork GA to Cardano's Preview test network on May 5, alongside the release of Cardano Node 11.0.1 pre-release. The update is a hard requirement for stake pool operators, DApps, and exchanges to safely cross the hard fork boundary without splitting the chain.
Why it matters
The van Rossem hard fork activates once 80% of stake pool operators on mainnet signal readiness. Preview deployment is the dress rehearsal — it gives SPOs time to upgrade nodes, gives DApp teams a target to rebuild against, and gives the chain a stress test before any mainnet consensus shift. The 11.0.1 pre-release tag signals Intersect is still finalizing the production node binary; SPOs running older builds will fork off the chain at activation.
Market impact
$ADA traders treat hard fork signaling milestones as event risk — the 80% threshold is the moment consensus is locked, and any wallet or exchange that hasn't upgraded faces replay or split-chain exposure. Watch the SPO signaling dashboard: crossing 80% on mainnet inside a week would compress the upgrade window for any laggard infrastructure.
Frequently asked questions
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What is the van Rossem hard fork on Cardano?
It's a planned protocol upgrade for the Cardano network. Activation is gated by 80% of stake pool operators signaling readiness on mainnet, and the GA was submitted to the Preview test network on May 5 alongside Cardano Node 11.0.1 pre-release.
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Why does the 80% SPO threshold matter?
It's the consensus gate for activating the hard fork. Once crossed, every node still on the old protocol forks off the chain — so the threshold effectively locks the upgrade window for any SPO, DApp, or exchange that hasn't migrated.
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What is Cardano Node 11.0.1 pre-release?
It's the pre-release node build Intersect published alongside the Preview hard fork GA. It's a hard requirement for operators to safely cross the fork, and its pre-release tag means the production binary is still being finalized.
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What is the Preview test network used for?
Preview is Cardano's pre-production testnet. It mirrors mainnet conditions closely and is used to stress-test hard forks before mainnet activation, giving SPOs and DApp teams a target to upgrade and rebuild against.
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What happens to operators that don't upgrade?
They fork off the chain at the hard fork activation block. Wallets, exchanges, and DApps that haven't migrated to a compatible node build face replay exposure or end up on the minority chain.
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