Apple has just released a new version of iOS, 5.1.1. The new version is showing up now on iTunes, and should be propagating shortly to Apple's servers. iOS 5.1.1 includes "improvements and bug fixes"; as reported from the official changelog:
- Improves reliability of using HDR option for photos taken using the Lock Screen shortcut
- Addresses bugs that could prevent the new iPad from switching between 2G and 3G networks
- Fixes bugs that affected AirPlay video playback in some circumstances
- Improved reliability for syncing Safari bookmarks and Reading List
- Fixes an issue where 'Unable to purchase' alert could be displayed after successful purchase
Apple's last major update to iOS, version 5.1, was released in March.
iOS 5.1.1 direct download links below (build number 9B206).