Yeah he just posted a 3rd new video about 3 hours ago, "APS5.mp4"
https://www.youtube.com/shorts/XDnbyag8qJ4 or
https://www.youtube.com/watch?v=XDnbyag8qJ4
https://archive.ph/5IcxV
480p Archive:
His arrest on Sep. 29th was an aberration, but I believe what I guessed earlier is still probably correct: I think he has not been homeless since about late August or so. He stopped posting homeless pictures around that time, and his community posts slowed down significantly in Sept., Oct., and now Nov. as well. I believe he has legitimately been focused on grinding out these new videos during this time. On about Oct. 26th, Mechadyne sort of confirmed this with a comment in a community post claiming that "Rest assured, out lad is well taken care of. Hold onto your tits, a storm is coming." at the end of an argument he was having with the mcvideos guy:

Back on Oct. 6th, Stamper had posted a picture where he was clearly indoors and at a computer going through an old notepad file with some of his silly twitter handles (you can see some Flash files on the desktop too)
https://archive.ph/N4bxY
and also a Newgrounds user uploaded an interview with Stamper recently where he confirms at the very beginning that Pokemon Sprayed is an old unfinished project he decided to complete that he had on an old hard-drive.
https://www.newgrounds.com/audio/listen/1265570
These two things I think are sufficient proof that he somehow did not lose his data despite allegedly getting his laptop stolen when he became homeless (maybe he had it backed up on cloud storage or something).
Based on comments he's made, I believe his "new show" he's been talking about is still forthcoming. The first time I ever saw him mention it, he implied he would be talking about social anxiety in it:

In later comment he said it would be out on Jan. 1st, although he deleted it shortly after so it may have been an impulsive and inaccurate claim:

Even later, the same guy brought it up again and Stamper said it would be "mad low-key" and to not "get your hopes up too much" about it:

This sounds to me like it's going to be a podcast type-thing or something.
My extremely lazy ass has still been procrastinating writing a proper update, but I'm gonna try to get it done by the end of the year. It would cover from late July to the present.
I previously speculated where he could be living now that he is apparently no longer homeless, and my thoughts haven't changed much; based on the evidence it's easy to just assume he moved back in with Mecha or maybe less likely the cadotmolin reddit guy/ some other fan who lives in the area, but there's other options I wouldn't rule out like a homeless shelter or something like that. On Aug. 21st he posted a selfie he hadn't posted before where it looks like he's laying down on a porch, although it kinda looks like it could be from before he became homeless:
https://archive.ph/YG9cM
And there was another selfie posted on Sep. 28th where it looks like he's in a shop out in public with clean clothes on:
https://archive.ph/xS60E
These and the computer pic are the only clues I've got. Not outright doxing himself again could be considered evidence that he's living in a fan's house. Ultimately, I'm personally still leaning toward him being back with Mecha again.