On the Focus it was from 2017 onwards, which was the last two years of the Focus Mk3.5 (which is 2015-2018), but only on the petrols. The Mk8 Fiesta then got that same 6-speed TC auto, and the Focus from 2018+ got an 8-speed TC auto. I believe the diesels across the Mondeo range still have PowerShifts as these are the wet-clutch variety not plagued by the infamous issues, but the rest are now torque converter boxes.
There's talk that the new Focus ST is going to get a new 7-speed dual-clutch box which will bring back the PowerShift moniker but don't quote me on that, it was a very brief read that's stuck in my head (rightly or wrongly).