This happened last year. I never heard about it.
A reviewer on amazon.com writes:
With so many things going wrong in the world, it's nice to see one important thing going right—a certain Mr. Applebaum stumbles onto the recordings at the Library of Congress in January, a crack team spends the better part of the year restoring and remastering, and Blue Note and Thelonious Records put out the CD in September.
It's a true and lovely story. National Public Radio tells it here (ignore the text and click the “Listen” button near the top). The disc is Thelonious Monk Quartet with John Coltrane at Carnegie Hall.