According to TechFlow, according to the IOHK website, Cardano has officially launched the official sidechain development toolkit to help developers use the Cardano infrastructure to build their own sidechains. The toolkit can help sidechains build their own consensus algorithms and functions, allowing cross-chain transmissions to be bridged to the root chain, and confirming and exporting block finality through the main chain consensus mechanism. The toolkit has three core components: the main chain Plutus script, the on-chain tracker, and the sidechain module, and the supporting technical specification documents are also published simultaneously.

In addition, Cardano revealed that its EVM sidechain public testnet will be released in January 2023. Source link