Yes I noted some apparently older links, one from the source didn't seem to list a date -- however it didn't render in my older browser with a big deny list. Others I checked [1] [2] suggest time used is based on last modified date.
[1] 25 May 2018 https://en.cppreference.com/cpp/experimental/simd Last modified 25 July 2026
[2] 2 April 2025 https://gist.github.com/MangaD/1fad63756ad8c946ce01dd1d52eff... Last modified 1st August 2026