@creativecommons the "compatible license" provision in the legal code of the CC BY-SA 3.0 (Unported) legal code has been lost in the redesign.
Previous page from Wayback Machine: https://web.archive.org/web/20230926144257/https://creativecommons.org/licenses/by-sa/3.0/legalcode
New page: https://web.archive.org/web/20230930133556/https://creativecommons.org/licenses/by-sa/3.0/legalcode
Missing the definition of "Creative Commons Compatible License" previously in Section 1(c) as well as the provision for such compatible licenses in Section 4(b).
(Plain-text version is unchanged; these provisions are missing only from the Web page. Ports don't seem to be affected.)