Aafter updating I updated my 6s Plus from iOS 10 public beta to the latest general release, 10.0.1, the image search function is gone in messages. I have been using it since the earlier public betas and weirdly seemed missing now. I went to the support page and found that image search in messages is not available in all countries, but have not mentioned which ones are banned. I live in Hong Kong and I don't see any reasons why it has been taken out, as we don't have muxh censorship rules here. Anyone else residing in Hong Kong have the same problem also?
I have done the usual restarts and reinstalls. No luck I also know that I can just download an equivalent app from the App Store for messages, but it's weird to see a function taken away like this on my phone.
