Question: What is the current ios update for iphone?
Disambiguated questions and answers: question: What is the current ios update for iphone, released in 2017?
What is the current ios update for iphone, released in 2016?
What is the current ios update for iphone, released in June 2014?
answer: 10.3.3
9.3.5
7.1.2
Natural Questions answer: 12.1 (from the Wikipedia article "iOS version history")