Originally published at: https://tidbits.com/2018/12/17/apple-releases-ios-12-1-2-likely-to-address-qualcomm-patent-issue/
iOS 12.1.2 fixes eSIM and cellular issues for Apple’s 2018 iPhones and provides unspecified security fixes, but the main reason for its existence may be to work around a ban on selling some iPhone models in China due to alleged infringement of Qualcomm patents.
The limitation on keyboard shortcut length (to 128 characters) has been lifted in 12.1.2 according to a MacGroup Detroit iBBS article,