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Apple
iOS 8.3 - 08 April 2015
iOS 8.3 was the first version of iOS to include emoji modifiers and ZWJ sequences for family combinations. This release also added 198 country flags, and updated artwork for many existing emojis.
The iOS 8.3 emoji update was introduced to Macs with OS X 10.10.3 Yosemite.
Learn more about this update.