Maintain has released v4.2 of Cocktail, its general maintenance and tweaking utility for Mac OS X. In particular, the software is said to ease access to some of the more complicated functions available within the Unix shell. The update adds several new features, mainly the ability to search for corrupt preference files and delete them. Users can also run through a database of Mac OS error codes, eliminating the need to look them up online.

Other changes include a list of common network ports, improvements to the "clear log files" procedures, and updated Automator actions as well as Help files. Cocktail 4.2 runs only on Mac OS X/OS X Server 10.5 or later, and sells in licenses starting at $15 for a single person. Still available are Cocktail 4.0.2 for Tiger users, and Cocktail 3.7 for Panther owners.