I am not sure if a patch will upgrade it or not.
Depends on the age of your hardware and the alignment of your current OS.
Some of the older Macs cannot show emojis, they can only show emoticons and smileys. The oldest Macs out there can only show smileys and cannot manage the processing required for either emoticons or emojis.
Best bet, according to everything I have read, is to get a PC.
hope that helps
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