On December 20th, the modular L2 network Mantle announced a partnership with ZK proof startup Succinct to launch the ZK Validity Rollup test network through Succinct SP1 in the first quarter of 2025, representing Mantle's transition from the current Optimistic Rollup model to the ZK Validity Rollup model. "With ZK Validity Rollup, the finality time can be reduced from seven days to one hour, bringing Mantle Network closer to Ethereum L1 economically, resulting in better exchange market spreads, lower slippage, better currency markets, and more," Mantle said.