Apple has released the iOS 6 beta 3 to developers. The update is available over the air on the iPhone/iPod touch and iPad. However, it hasn’t yet shown up on the Apple Developer website.

According to the release notes, the beta contains bug fixes and improvements. Download sizes: 323MB/347MB delta on iPhone 4S, 424MB delta on third-generation iPad.

The last beta arrived on June 25.

As a reminder, the public release of iOS 6 should arrive sometime this fall. When it does, it will almost certain coincide with the launch of the sixth-generation iPhone.

We’re in the process of learning more about iOS 6 beta 3. We’ll keep you updated here.