iOS 6 has been released recently, however, according to the reports, it seems that iOS 6 comes with certain issues.
Although iOS 6 has introduced all sorts of new features, iPhone 4 and iPhone 4S users have reported some issues with the latest iOS. Hundreds of people have reported on Apple’s forums that new iOS 6 drains battery faster on iPhone 4 and iPhone 4S, and similar things have happened in the the past with the fresh iOS release. As for solution, some users are claiming that turning off location features fixes the problem, while others are claiming the opposite, and despite all these complaints, we haven’t seen an official response from Apple, so we’re still waiting for solution.
Although iOS 6 offers variety of new features, you might want to wait just a bit more before you switch to it, especially if you own iPhone 4 or iPhone 4S, unless you don’t mind shorter battery lifespan.