I'd say so Mitch, the avatar change worked perfectly for me - it was instantaneous . . .
I have my browser set to check for newer versions "every time I visit a page", if your settings are the same, try F5 to refresh your browser cache after a change.
Also just another thought, I'm not sure how the cookies work, but because I have a "dummy" member set up ( to do a bit of seeding), sometimes it messes with the new post indicators and the cache when I switch "ID's to post.
CYA <img src="https://www.ubbcentral.com/boards/images/graemlins/smile.gif" alt="" />
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I'm depriving a village somewhere of an idiot !