Ther T&Cs change frequently. Recently it seems as often as a couple of times a month. This is usually to reflect new acquisitions and brands, but can include changes to benefits, such as the recent AA partnership benefits, and modifications to some of the property lists. It's unfortunate the archive doesn't have a better record of the recent versions, The most recent one I have is a pdf of the version "Updated December 15, 2023, and Effective as of January 1, 2024". I'm happy to share this with you, or I can post the section(s) of interest to see if there is a change.