At the Apple Special Event in New York today, Tim Cook announced the imminent release of iOS 12.1, bringing support for FaceTime calls with up to 32 devices simultaneously along with it.
A post on Apple's newsroom details everything that this update, which released directly following the Apple Special Event held on October 30, 2018. One of the most significant features of this release, support for 32 people in the same active FaceTime call, was originally announced back in June before being delayed in August.
Additional features that iOS 12.1 implement include dynamic real-time adjustment to portrait photos in the built-in Camera app both in its real-time preview as well as in post-capture editing. Alongside this, 70 new emoji have been added, including symbols for moon cake and a red gift envelope. For iPhone XS, iPhone XS Max and iPhone XR devices, iOS 12.1 also enables support for Dual SIM with a physical nano-SIM and a digital eSIM. This allows users to have support for two different cellular carriers, which is especially good for those that often travel internationally.
As a final note, watchOS 5.1 was simultaneously released to implement audio-based group FaceTime support and the new emoji for all supported Apple Watch devices, as well as enabling electrocardiogram support for Apple Watch Series 4 devices in the United States.