Last Friday as we all sat and waited patiently for the official iOS 4.2 to be released, we instead got a nasty WiFi bug that delayed the release. Apple quickly got to work and released a patch to fix the iPad WiFi connectivity bug. Late that same afternoon re-released the iOS 4.2 GM with a new iPad build number (8C134b).
As of today Apple has just released iOS 4.2.1 GM (gold master) for iPhone, iPod touch, and iPad (build 8C148). There is no real information on what, if any new changes come with this latest build. One thing I can guarantee is that Apple fixed the WiFi bug. You gotta figure third times the charm!
Developers can head over now and download iOS 4.2.1