Conflux Network (Hydra) Version 2.3.5 Upgrade Announcement

This upgrade is mainly to solve the problems below:

Bug Fix

  • Fix some compatibility issues that block archive nodes from syncing.
  • Fix a transaction pool underflow/overflow.
  • Fix an issue that Sqlite may use too much system temp directory space.
  • Fix a packing pool bug when all the transactions have the same price.
  • Fix a corner case where CIP-107 assertation fails.


  • Make reboot faster if use_isolated_db_for_mpt_table is enabled.
  • Enable keep_era_genesis_snapshot by default to provide one more snapshots for sync.
  • Refactor EVM code to prepare for the following hardforks.


Download “Conflux v2.3.5” here:

I am a node operator/miner, what do I need to do?

If you have a running node, you need to

  • Suspend the running operation of the node
  • Replace the executable file named “conflux” in the “run” directory of the original node program with the “conflux” executable file of the Conflux v2.3.5 node program.
  • Restart the operation of the node
    If you start a new node, you can download the latest version of Conflux v2.3.5 and run it.

What will happen if I do not upgrade the nodes?

It is strongly recommended to upgrade your node to the latest version. Failure to do so may result in potential issues affecting transaction processing and miner earnings.

Thanks to our community for your support!

A sincere thank you to the Conflux community and all the developers in the Conflux ecosystem. Thank you for your hard work, thoughts, and contributions. To a better future!

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