I tested in 2016, I think in November...can't remember, feels like it's been decades, but I remember it was 2016. Got my TOL in February 2017. Had a security interview in February 2017. Finally got my medical clearance this month, got my FOL a day later.
I did hear of people from the 2017 bid already going while lots of people from the 2016 bid still waiting. Sounds like they're slowly clearing people though. My co-worker was in the 2016 bid too and he just got his FOL a week after me.