Yesterday Apple made the latest update to Mac OS X Snow Leopard available to developers, the update pushed the operating system to build 10A421. In the last few builds very little has changed with Apple making minor tweaks to the performance and operation of Exposé and adjusting the Dock menus.

In the latest build Apple has added a whole slew of new Desktop Pictures as well as finally changing the QuickTime icon to the one Apple has been showing us. With this build Snow Leopard has gained further performance improvements and stability, suggesting that Apple may be closing in on a GM (Golden Master) build.

All of the Desktop Pictures included with Snow Leopard can be downloaded here (95.7MB zip).

Screenshots after the jump.