Cypress Hard Fork starts today

It’s been months of tweaking and upgrading Klaytn’s network, but our team of experts here is leveling up!

Our Cypress hard fork will occur at:

  • 86816005 block height (estimated time: Today 13:00–14:00 UTC+9).

After this network upgrade, our Cypress gas price adjustment will come into effect at:

  • 87091200 block height (estimated time: 3 April 17:30–19:30 UTC+9)


Hard fork refers to the upgrading of the core protocol running on the Klaytn blockchain. All nodes constituting the blockchain have to implement the upgrade. Since Klaytn chains do not allow forking at the consensus level, the term “hard fork” often used in the crypto jargon is meant here as “protocol upgrade”.

Find out more about how we’re moving into supporting Ethereum equivalence!