This is in reference to Ondrej Sury's comment at the mic that the CZNIC Knot resolver (first release planned by end of year) will implement query name minimization. This is the first resolver implementer that has publicly stated their plans to implement it. Ondrej asked if I'd be available to talk to his colleagues that are implementing this. Later in the week, Marek Vavrusa of CZNIC spoke about Knot at the RIPE70 meeting
and I spoke to him afterwards. Their initial implementation only does minimized queries at the DNS root, switching to full query names after seeing a referral, mainly to avoid problems downstream with potentially broken servers (like some CDNs). This is a partial implementation of minimization, but nonetheless a step in the right direction.