"Re/code has confirmed the new date"
I am sorry but the only one who can (has the ability to) 'confirm' is Apple. Anyone and everyone else can ONLY add to the rumor.
You must be new round here...
This is not a black and white definition... The credibility of rumours changes according to a) the source and b) the proximity to the reported date of event/release.
If you look back over the last few years, the event dates and hardware unveilings have almost all been accurately predicted, some many months out, but most in the 1-2 months before.
So whilst everything is a rumour until Apple say it, history has proven that many rumours are true, and we're getting better at knowing which ones are true based on the the 2 factors above.