I don't know of a linkable official statement to that effect. Unfortunately much of the information available (for example in the official onsite FAQ) is incomp

I don't know of a linkable official statement to that effect. Unfortunately much of the information available (for example in the official onsite FAQ) is incomplete or outdated. The Wayback Machine gets only a tiny fraction of the product-management, public communication, documentation, end-user support, and fundraising that it should.