Uniswap v4 has surpassed 500 registered custom hook deployments in reported developer directory data, indicating growing experimentation with programmable liquidity pools. Hooks let developers alter pool behavior, including fees, liquidity management, access controls and other execution rules. The count does not show that the hooks are audited, liquid or operating as successful mainnet products. The more significant measure will be whether a smaller number of well-designed hooks attract deep liquidity and earn enough user trust to support real capital at scale. This flexibility is central to v4's modular automated market maker design, but it also places greater responsibility on application developers and increases the importance of auditing. The article was written by the News Desk and edited by Samuel Rae.