Apple has seeded the first beta of iOS 9.2.1 to developers for download and testing. The new beta software features a build number of 13D11, whereas last week's iOS 9.2 release had a build number of 13C75.
Apple rarely releases betas of ".1" updates, but 9.2.1 likely contains bug fixes and performance improvements. For those that are not developers, Apple has not seeded 9.2.1 to public beta testers yet. We have yet to spot anything new in 9.2.1, but if we do we'll be sure to let you know.
Fyi never in history of jailbreak tools has one been released on Christmas Day. Evaders released one back in ios 7 days on December 27th. Thats the closest release to xmas