Kohaku SDK has successfully implemented Railgun's ERC-4337 relay, enabling privacy-enhanced transactions through the ERC-4337 mempool relay. This development allows users to access privacy protections without relying on specific relay infrastructures. The Ethereum Foundation's Kohaku Initiative, led by researcher kassandraETH, is also working on supporting Tornado Cash and Privacy Pools. Production-grade wallets like Ambire are preparing to integrate this solution, with a live demonstration scheduled for Berlin Blockchain Week. Kohaku, an internal Ethereum Foundation project, aims to simplify the integration of privacy protocols such as Tornado Cash, Railgun, and Privacy Pools at the wallet layer, utilizing tools like EIP-7702 to reduce complexity for developers and users.