Mond Cuts Block Time to 300ms with MIP-12 Upgrade

Mond's MIP-12 upgrade successfully cut the network's block time from 400 milliseconds to 300 milliseconds, also lowering deterministic finality from about 800 milliseconds to roughly 600 milliseconds. This change was implemented on mainnet on July 23, 2026, at round 89,758,000.

The MIP-12 upgrade came from Category Labs and adjusted several other network settings simultaneously. It shortened the consensus voting cycle by 100 milliseconds, reduced the block reward from 25 MON to 18 MON per block, and lowered the block gas limit from 200 million to 150 million.

Mond's speed is due to its unique design, which splits two jobs that most blockchains do together: agreeing on transaction order and running transactions. Validators agree on order first through MonadBFT, then execution happens afterward with access to the full block window.

The upgrade maintained gas throughput at 500 megagas per second, but the per-block transaction limit dropped from 5,000 to 3,750, calculated by dividing the new 150 million gas limit by 40,000.