Yazsoft has announced the release of Speed Download 2.3.4, the latest version of the company’s popular download manager for Mac OS X. Version 2.3.4 updates and optimizes the Speed Download plugin for more compatibility, removes the MacShareware feature set from the SDCLI (Command Line Interface), and offers several other bug fixes and feature tweaks. Speed Download 2.3.4 requires Mac OS X 10.2.8 or later, and is priced at US$20 for one license.