Maintain has released the fourth edition of Cocktail, its general maintenance utility for Mac OS X. The program focuses on simplifying tasks that might otherwise require Unix, such as running maintenance scripts, repairing permissions, clearing all caches, or optimizing network hardware. The new version is intended for Leopard only, and likewise updates the utility's Automator actions and introduces a Leopard-style Help system. Also new is a better software updater, a scheduler log, and a host of fixes and performance improvements. The software has already been tested with the recently-deployed 10.5.1 update, and costs anywhere from $15 for a single license to $700 for a worldwide package.