Jito Labs, a developer for the Solana blockchain, has decided to shut down its mempool feature following a series of 'sandwich attacks' on Solana traders. These attacks were made possible by the Jito Block Engine's introduction of a Solana mempool, allowing sophisticated bots to profit at the expense of retail traders. The decision was made after discussions with key Solana ecosystem stakeholders, emphasizing the team's commitment to the network's long-term success. Jito Labs had previously launched its governance token, which generated $1.1 billion in trading volume on its first day and is currently trading at $2.84.