Just a day after rolling out the first beta of iOS 9.2.1 to developers, Apple has started rolling out the update to public beta testers.
As the naming scheme indicates, iOS 9.2.1 is a fairly minor update that does not bring any major user facing changes. It is mostly aimed at fixing some under the hood bugs and improving performance.
The update seems to bring a slight performance improvement on older iOS devices, which boot and open apps a wee bit faster.
If you are not already a member of Apple’s public beta testing program, but are interested in being one, head over to this link and sign up with your details. Signing up for the public beta will also provide you with early access to OS X releases provided you own a Mac.