Apple kept the window to install a previous version for an hour open. This habit changed with the arrival of iOS 8 and is good news for all users, as it allows us to test a version longer and go back to the previous firmware.
Until now, users could install iOS 8.3 and iOS 8.2 according to our preferences but, about an hour ago, this will no longer be possible because, to install a version of IOS, we need the digital signature of that version and Cupertino no longer provide such signature.
Apple, as usual since the arrival of iOS 8.0.1, has been expected a fairly reasonable time to ensure that there are problems in its latest version as the famous network failure iOS 8.0.1, so if someone have a problem and you need to restore, you can rest assured that iOS 8.3, the only version available today for all supported iOS devices 8 known works without serious problems.
If, for whatever reason, you want to keep you in iOS 8.2, of course you must take extra care to ensure you do not have a ruling that obliges you to restore the device. Although my recommendation, as dihe in another article, is that actualicéis without fear of iOS 8.3. The reasons are two: the first reason is that the version works better than iOS 8.2 and the second is that it makes no sense to be expected in an earlier version expecting a jailbreak that most likely will not arrive.