Gmail content will not be used or scanned

G Suite’s Gmail is already not used as input for ads personalization, and Google has decided to follow suit later this year in our free consumer Gmail service. Consumer Gmail content will not be used or scanned for any ads personalization after this change.

Quote from Google's blog today, June 23rd, 2017

When is later this year?

Will Not Be

Gmail content will not be used or scanned
The revolution will not be televised.

When I Was Younger

When I was younger I thought that 'the revolution will not be televised (Gill Scott Heron - here are the lyrics ) was about as raw as lyrics got.