According to CoinMeta, core contributors ethereum, economic, zone (including eez), Eduardo Antu, have published a statement indicating that the first atomic cross-chain transaction from L1 to L2 has been successfully executed on the Ethereum mainnet. This marks the implementation of atomic synchronization composability on the mainnet, moving it beyond the theoretical stage. They pointed out that this is merely the beginning of eez's efforts to promote unified cross-layer synchronization and liquidity on Ethereum.