Apple this morning released an updated version of iOS 12.1.2 that features a new "16C104" build number, up from the "16C101" build number used for Monday's release.
We don't know why Apple has released a new version of iOS 12.1.2, but the updated build is likely meant for those who have not yet updated to the new software. It could contain small bug fixes or tweaks that are not significant enough to require a full release.
https://www.macrumors.com/2018/12/20/apple-releases-updated-version-of-ios-12-1-2/?utm_source=dlvr.it&utm_medium=twitter
We don't know why Apple has released a new version of iOS 12.1.2, but the updated build is likely meant for those who have not yet updated to the new software. It could contain small bug fixes or tweaks that are not significant enough to require a full release.
https://www.macrumors.com/2018/12/20/apple-releases-updated-version-of-ios-12-1-2/?utm_source=dlvr.it&utm_medium=twitter