Yazsoft today announced the availability of Speed Download 4.1.8, an important update to the the fourth generation of Yazsoft’s award-winning download manager for Mac OS X. “This new upgrade will mark a milestone in the history of Speed Download development,” said Mark Forrester at Yazsoft. “Many months of development and user feedback contributed towards this release, and we’re really excited to get it out for our users to try out. We hope they like it as much as we do.” Version 4.1.8 adds some key new features and improvements and is a recommended update for all Speed Download 4 users. Speed Download 4 is priced at US$25.