Where can I find detailed documentation on quarterly WHOIS Database releases?

The site https://domainwhoisdatabase.com/docs contains Reference Manuals for quarterly gTLD and ccTLD database releases, with their comprehensive description. Version-specific information is available in the root directory of each release in the README file, available in txt, html, and pdf formats. Optionally there can be a text file there with additional release notes, with the date of the last update in the file name.