Apple will introduce new versions of iOS and OS X at its annual developer's conference.
Apple Releases iOS 4.2.1 Golden Master to Developers
MacRumors has just received word that Apple has seeded a new golden master of iOS 4.2, known as iOS 4.2.1, to developers. The new version carries a build number of 8C148, up from the previous 8C134.
According to those familiar with iOS 4.2.1, Apple has instructed developers not to resubmit their applications under the new build, suggesting that only minor fixes are included.