No specific info about version 4.0 beta. Please visit the main page of Yasu on Mac Informer.
Maintenance is a handy system maintenance and cleaning utitlity for your Mac.
Immediately remove unneeded cache data from your Mac.
Maintains your Mac's health by providing full automation of maintenance chores.
Makes system maintenance simple and improves system performance.
Speed up your Mac and secure it with the Hi Speed Bundle.