NKN MainNet v2.1.5 Release

We released a new mainnet version v2.1.5 at https://github.com/nknorg/nkn/releases. This version introduced enhanced security mechanism for sigchain miner selection, including using block random beacon as salt when selecting miner, and truncated exponential weight for each sigchain element. The new mechanisms will be activated at block height 2,900,000. Please make sure all nodes upgrade before this height.

How to Upgrade

  • If you are using nkn-commercial (including one-click on DO/AWS/Google Cloud) or nknx fast deploy, you don’t need to do anything.
  • If you downloaded the release version, you just need to download it again at https://github.com/nknorg/nkn/releases , replace files and start nknd again
  • If you build from scratch, you just need to do the build again.
  • If you are using some scripts or tutorials that has auto-updater, then it should be automatic if the auto-updater is working properly.

We don’t recommend anyone to download the ChainDB snapshot manually, but if you really want or need, you can use https://nkn.org/ChainDB_pruned_latest.zip or https://nkn.org/ChainDB_pruned_latest.tar.gz for pruned ChainDB.

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