iOS 9.2.1 Jailbreak
Those hoping for an iOS 9.2.1 jailbreak should temper expectations because the confirmation that appeared last month has vanished without explanation. It's not clear what this means for jailbreak users or the progress of the next public iOS 9 jailbreak and you'll want to keep an eye out for additional details.
For now, jailbreak users are left with the current option which is an iOS 9 jailbreak for iOS 9.0, iOS 9.0.1 or iOS 9.0.2. There is no jailbreak for iOS 9.1, iOS 9.2 or the iOS 9.2.1 beta and it's not clear if there ever will be a public release for Apple's new updates.