Apple started initially approving app compatibility updates for iOS 5 back in August. With iOS 5 set for a public release next week at the earliest, Apple is continuing to approve more iOS 5 compatibility updates for popular apps in the App Store.

Microsoft’s Photosynth application received an update today that brings iOS 5 compatibility. What app will be next to receive a compatibility update for Apple’s unreleased software?

As you can see, iOS 5 compatibility has been added to Photosynth in the update’s release notes alongside some other minor changes. Photosynth¬†version¬†1.1.1 is available in the App Store for free. The app allows you to create¬†panoramic¬†photography by¬†stitching¬†together multiple shots on your iPhone.

Let us know if you spot any more iOS 5 compatibility updates in the App Store over the weekend. With Apple’s iPhone event scheduled for Tuesday, the public release of iOS 5 is right around the corner. Multiple reports suggest that the software will be made available to everyone on or before October 10th.

(Thanks, Nate!)