extremely recently, like a week ago or so, and this video was from 3 days ago; for the next few weeks I'm still going to look at the 10 min timestamp as more telling than an 8 min one (though I'm sure youtubers will "migrate").

Looking at the channel, 3 of its videos are between 10:04 and 10:09 long. Of course, that's nothing compared to a lot of other long-form youtubers I've seen with like 80% of their videos around that timestamp.