Opera Software has released a new version of its fast, alternative Web browser, Opera 5.0 for Mac OS Beta 4. The new version, which runs on OS 7.5.3 through 9.2, includes major improvements such as a new installer, better AppleScript support, autofill of forms, new balloon help, a revised preference layout, and searchable and dockable bookmarks. In addition, Opera 5.0 Beta 4 includes features not yet available on versions of the browser for other platforms, such as the link toolbar and improved drag and drop. Users can support continued development of the browser by registering it for US$39.