How long will the iPhone 6s receive updates?

I just bought an iPhone 6s and was wondering how long it will receive updates.

Well, with Apple, max of 2 years.

Whatever apple decides but to get an idea, iPhone 5 still gets updates.

A good while. The iPhones that are due to stop getting updates this year are the 5 & 5c, so the 6s would be at least 2019.

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