Benjamin Mayo of 9to5Mac has discovered that asking Siri about Apple's summer developers conference has now started to produce a more concrete answer than before. Whereas asking Siri about the WWDC 2016 schedule would yield a “WWDC is not yet announced” response just earlier in the day, a backend change has updated that answer with the June 13-17 date.
“The Worldwide Developers Conference (WWDC) will be held June 13 through June 17 in San Francisco. Can't wait!,” reads Siri's response.