In my case they migrated me from a BTW backhaul to a TalkTalk Business backhaul on Thursday.
I only found out because of a worrying message on my Openreach line check which said that a "close order" had been placed on my line - which made me worry somewhat.
Luckily it went pretty smoothly; it caused a DLM reset and interleave was temporarily reapplied to my line.
Early days but the new TT Business backhaul has higher latency (even with fast path) and does seems more congested than the BTW backhaul I was on previously. I've had buffering for the first time in months - it went away immediately when I switched to Vodafone LTE ... and no, not my wifi; I have a Mikrotik set up that I optimise very carefully
Edited by chrisjam (Sat 28-Mar-20 17:53:24)