This is United Statians being the victims of their own crazy date writing style again. (-:

Michael Horowitz did this on 2021-10-22, and it returned the value 2021.1019.1.0.

Today, on 2025-06-07, it is publishing the value 2025.424.19.0. Which would be last April the 24th.

It's blazingly obvious that it's the last date that something downloadable got updated, with a version or sequence number of some kind. The zero in the final field is probably there because someone is using a 4-field version datatype. To publish a date.