I'm just posting from what I heard via social media (Instagram) but James Lucas has a picture of what looks like Honnold just before leaving the corner into the slopy undercling bit.
If it is the real deal, I'm sure we'll hear about it in the mags.
I just know that there's been speculation about the possibility of him doing this for a while now, and it would be pretty cool to know it finally happened.
A bit more beta for those who don't know, yeah he may have soloed harder than .12a, but this was .12a back in what? '82? The first all free climb to the top of the Grand Wall. The first two pitches give it the grade - they are overhanging, sustained, and insecure. There isn't anything near a proper rest until near the end of the second pitch, that being a kneebar. The first hands free ledge is on top of the third pitch.
Well there was the Squamish Buttress all free to the top :-D but, yeah, not to put too fine a point on it, UWall was the first of the old big aid lines to go free. And quite a few folks said it wouldn't go.
Anders can confirm the date for certain :-D but I 'm pretty sure it was the summer of 1982.
James Lucas So odd. I drove to Moonlight and talked to Alex and he had soloed. He soloed the Phoenix and Cosmic Debris...all my projects. today I climbed on the UWall and saw @alexhonnold On the way down. In the shade, just below the second power line, @alexhonnold solos the U-Wall. I took a picture of @smashits at the same spot a few hours earlier.
I don't know. He was did that interview down in Boulder right after he left Squamish. He was talking about the 290 pitches he did at Squamish for his 29th birthday. Most of it sounded pretty social for him. Lots on the Apron I think, no mention of U Wall.