What, exactly, does the announcement mean? Are they rolling out data they previously recorded and, if so, when did they gather it? Or are they gathering data right now and applying it on the go?
When they announced the last update I had seen a major crawl update two days prior.
Hmmm, i'm assuming there even needs to be a crawl here which may be wrong to begin with. Google is likely just updating based on user metrics data they have collected and not just actual page content.