https://bugs.winehq.org/show_bug.cgi?id=40346
--- Comment #10 from Jeremy Newman jnewman@codeweavers.com --- Fastly (our CDN) is broken. It is awesome that they are donating this service to us, kudos to that. BUT, they are not updating the mirrors properly when the origin server updates.
I've done a full purge as that is the only thing that works. Downside, is that basically forces the CDN to redownload every file on our origin server. A serious waste of bandwidth.
I've opened yet another ticket with them, and I'll let you know if they come up with a solution that actually works.