While Vodafone UK has taken their sweet time rolling out BlackBerry 10.2.1, it appears as though they may have had a good reason for doing so. They've actually rolled out a later OS then everyone else. Folks on Vodafone UK and various other UK carriers are now seeing OS 10.2.1.2141 appearing on their devices as software version 10.2.1.2102.
As far as we can tell, this release has a few bug fixes but also and updated Android Runtime to go along with it. Like all updates, your mileage on when you get the update will vary but it's been confirmed for the Z10, Z30, Q10. This OS started appearing earlier today but we wanted to be sure it was actually rolling out before fully posting. If you hang tight, we might be able to get some autoloaders for it as well.