Last op-up on AC was in 2008 - LHR-YYZ Y -> J for Mrs. and myself. AC*E at the time.
I only bring this up to brag about what was the greatest op-up(s) of all time - close to theoretically optimal based on the great circle map. But not on AC. PER-HKG-YYZ both segments op-uped PY->J on CX, as a BA Silver at the time.