The Klaytn Foundation announces that it has launched Kaia v1.0.0 testnet "Kairos". Kaia v1.0.0 is the first official version of the Kaia chain. The Kaia network first transitions the Klaytn network through a transitional hard fork. At the moment the hard fork is applied, the Klaytn Baobab testnet will transition to the Kairos testnet. This release contains the Kaia Transition hard fork and KIP-160 hard fork configuration. For the mainnet hard fork block number, it will be announced in the next release.