Cocktail developer Kristofer Szymanski has announced that the Mac OS X 10.2 Jaguar version of his general purpose utility has been updated to version 3.5. Cocktail allows users to quickly clean, repair and optimize their system. It also simplifies the use of advanced UNIX functions and gives access to hidden Mac OS X settings. Version 3.5 includes “lots of new features, changes, improvements and bug fixes.” The Mac OS X 10.3 Panther version of Cocktail 3.5 was released in December. Szymanski also said that Cocktail is not compatible with any of the preview builds of Mac OS X 10.4 Tiger, but is expecting to release the first public beta of Cocktail for Tiger in April.