On December 20, news broke that the modular L2 network Mantle announced a collaboration with the ZK proof startup Succinct. They will launch the ZK Validity Rollup testnet through Succinct SP1 in the first quarter of 2025, marking Mantle's transition from the current Optimistic Rollup model to the ZK Validity Rollup model. Mantle stated, 'With ZK Validity Rollup, the finality time can be reduced from 7 days to 1 hour, making the Mantle Network economically closer to Ethereum L1, thereby achieving better exchange market spreads, lower slippage, and improved money markets.'