Volume 4, Fascicle 7 was officially released this week! The latest draft ("prefascicle", dated December 2024) is available at
https://www-cs-faculty.stanford.edu/~knuth/fasc7a.ps.gz. As Knuth says, the contents "agree fairly well with the contents of the first paperback printing of Volume 4, Fascicle 7, except for parts of the index. As usual, the prefascicle is 'frozen' and will not be maintained, while the paperback will gradually improve with time."
