MegaETH, an Ethereum Layer 2 solution, will launch its mainnet beta, Frontier, in early December. The high-performance network, capable of processing over 100,000 transactions per second with a 10-millisecond block time, has been in private development for 16 months. The beta phase will last one month and include the gradual launch of partner applications. Users are advised to expect potential outages and imperfections during this testnet phase, as the incentive program remains in its early stages.