Here is the announcement from my amazing pal Kevin Yeates who has put in millions of hours of work to compile this great resource;
We are pleased to announce the release of the newest free edition of the Creole Jazz Band Fake Book. We have decided to change numbering system for the editions. We will now be using the year the edition was published as the edition number. This latest release is version 2020. We continue to offer our double-your-money-back guarantee on this free fake book.
It contains tunes that went out of copyright prior to 1925. Under the terms of the Sonny Bono Copyright Act, works first published in 1923 entered the public domain as of January 01, 2019. Following on that, as of January 01, 2020, works from 1924 entered the public domain. We plan to continue to add new tunes each year as more come out of copyright.