Steel Bank Common Lisp 2.3.8 released: “a mark-region parallel GC is available”

Thanks! turns out https://applied-langua.ge/~hayley/swcl-gc.pdf was posted a few hours ago (https://news.ycombinator.com/item?id=37296153) so maybe the best fix is to merge the threads. I've done that now.

I don't want to move your comment out of this context but maybe you could post a fresh comment with that link to the other thread?