Interesting, I thought the vectoring roll-out was dead in the water thanks to G.fast.
The widespread rollout of Vectoring was indeed dropped in favour of G.Fast.
However, at the same time, BT said they would use vectoring in select cases - where it would help them meet BDUK coverage targets - through an increased range for superfast speeds.
At the time, there had been no mention of BT's LR-VDSL solution. However, we now know that vectoring is a mandatory component for LR-VDSL cabinets, and gets applied to all lines on cabinets where this is used.
I don't know, but strongly suspect, that BT deploys vectoring independently from LR-VDSL too.