iPad 1: 5.1.1
iPad 2 (GSM): 5.1.1
iPad 2 (CDMA): 5.1.1,
iPad 2: 5.1.1
iPad 3 (GSM): 5.1.1
iPad 3 (CDMA): 5.1.1
iPad 3 (wifi): 5.1.1
iPhone 4S: 5.1.1
iPhone 4 (GSM): 5.1.1
iPhone 4 (CDMA): 5.1.1
iPhone 3GS: 5.1.1
iPod touch 4G: 5.1.1,
iPod touch 3G: 5.1.1
iOS 5.1.1 is out: fixes iPad network switching, Safari syncing, AirPlay, HDR
According to release notes accompanying the update, it contains the obligatory improvements and bug fixes, including:
• 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