I started up from the Portal at noon on Wednesday. My pack was extraordinarily heavy (19 lb) because, being alone, I had no help with the bear canister, stove, etc.
There were only infrequent small patches of snow on the trail until just below Trailside Meadow. Then it was constant snow the rest of the way. There were several parties camped in the slabs east of Trail Camp, but only a couple at Trail Camp itself.
I took a bivy sack, but ended up only using it for a ground cloth because the night was so balmy. It didn't get close to freezing, and I was cozy in my 40 deg Marmot Atom.
On Thursday, I left camp around 7:00 and reached Trail Crest in a couple of hours, having been passed by several youngsters. (At my age, everyone else is a youngster.) Some were outfitted properly with ice ax and crampons, but others had neither. And some of the latter didn't even have hiking poles; they climbed up the slope on all fours. I worried about whether they would be able to descend safely, but all went well I guess and there were no bad outcomes by the time I left the area.
There were tracks of people who had tried the switchbacks, but bailed after the cables section. I'm guessing that it will be around 3 - 4 weeks before the switchbacks can be done safely by most.
Details are in my pictures and their captions.