I was asked to “hard refresh” to upgrade, and the upgrade was mentioned as v2.8. I tried a few things (har-refresh on ipad safari isn’t simple or clear) and finally I realised that version 2.25 is newer than 2.8.
I see that a few others have gotten confused, I suggest you add both what version people have cached and the new version on offer.
And maybe skip the 2.8 talk, as that was released over a year before I started here, so I assume that message isn’t relevant?
(I also wonder why you can’t push this from server side, I’m rarely asked to hard refresh web apps, but that’s a conversation for another day)