Leopard was released on October 26, 2007 as the successor of Tiger (version 10.4), and is available in two editions: a desktop version suitable for personal computers, and a server version, Mac OS X Server.
It retailed for $129 Leopard was superseded by Snow Leopard (version 10.6).
For example, the Mac OS X 10.7.4 Update updates Mac OS X 10.7.3 to version 10.7.4.
Individual Updates are also known as Delta Updates.
We regularly release new versions of the Dropbox application with additional features, better performance, and enhanced security, and these versions are not always compatible with older operating systems.