Apple has released iOS 6.1 today for iPhone, iPad and iPod touch devices. The update brings improvements and bug fixes as usual including LTE support for more global carriers. 

• LTE support for more carriers (complete list of supported carriers at www.apple.com/iphone/LTE/)
• Purchase movie tickets through Fandango with Siri (USA only)
• iTunes Match subscribers can now download individual songs from iCloud
• New button to reset the Advertising Identifier
• New LTE carriers supported in the update include: 
  
  - USA: Alaska Communications, Alaska GCI, Bluegrass Cellular, C Spire, Cellcom, Pioneer Cellular 
  - Canada: MTS, Sasktel 
  - Puerto Rico: Claro, Open Mobile 
  - Croatia: T-Mobile, VIPNet 
  - Denmark: 3, Telenor, Telia 
  - Finland: DNA, Elisa, Sonera 
  - Greece: Cosmote 
  - Hungary: T-Mobile 
  - Italy: 3, TIM, Vodafone 
  - Kuwait: Zain 
  - Luxembourg: Tango 
  - Philippines: Globe, SMART 
  - Portugal: Optimus, TMN, Vodafone 
  - Saudi Arabia: Mobily, Zain 
  - South Africa: Vodacom 
  - Switzerland: Swisscom 
  - UAE: DU, Etisalat