A significant section of the Regular Northwest Face route on Half Dome has fallen off, likely making the route unclimbable in its current condition. The large ledge at the end of Pitch 11, the traverse at the start of Pitch 12, and the bottom of the chimney pitches in the middle of Pitch 12 have disappeared. It's not known exactly when the rockfall occurred.
I was up there about 18 months ago so I remember those pitches. I guess I shouldn't be surprised, it was bound to happen. Still crazy though.
What's even crazier...there's a first ascent up for grabs on Half Dome.