> Continuously upload info about your contacts like phone numbers and nicknames, and your call and text history. This lets friends find each other on Facebook and helps us create a better experience for everyone.
https://fbnewsroomus.files.wordpress.com/2018/03/opt-in_scre...
Granted, those six words are tacked on the end of a sentence, and given the intrusiveness of the feature should probably have been called out in its own opt-in dialog with its own switch. But it's not like they asked for contact access and turned around and used it for something else.
Has that prompt always been there? A lot of people seem to be unaware that Facebook has been doing this, and I haven't seen anyone say they saw that prompt in 2015.
I searched Google for the text of that prompt, or any reference to Facebook accessing your SMS history, in 2014 to 2017, and didn't find anything.
Of course, some of the blame for that belongs with Google, for failing to accurately describe the permissions being given to apps.