Not a Sonic Youth or even a SY offshoot release, but since Hippie T put it out via his Daydream Library Series and wrote an ad-hoc message for the Bandcamp notification, eh, why not mention it:
Daydream Library Series just released Wake-up Call by Katherina Bornefeld, check it out here.
Here's what they say about it:
Some sound-healing from the Daydream community. "Listen. Soar. Sleep. Dream. Awake into positive vibrations." -Thurston
If you thought that
was a bit heavy on the flowerchildness, you haven't followed the link yet. "Instructions for listening to AngelTalk: Make yourself comfortable by sitting in lotus position"—
OK, no, you know what, I can't keep quoting this thing, I need to listen to Ace Of Spades
again right now...