iOS 5.1.1: what's new and download links

Apple released iOS 5.1.1 (build number 9B206) for iPad, iPod touch, and iPhone. This is a small update with several bugfixes and small improvements. Here is the official list of changes:

• 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.

And download links:

• iPhone 3GS
  
• iPhone 4 GSM
  
• iPhone 4 CDMA
  
• iPhone 4S
  
• iPad 1
• iPad 2 WiFi
• iPad 2 WiFi+3G
• iPad 2 WiFi+CDMA
• iPad 2,4 (New iPad 2)
• iPad 3 WiFi
• iPad 3 WiFi+3G
• iPad 3 WiFi+CDMA
• iPod touch 3G
• iPod touch 4G