Yes the [3] & [4] were there, but the [5] thru [8] only appeared in the past week or so with last update.
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As noted, I probably just never noticed them before. Heck i didn't even notice it the first couple times I logged in since the update, since they're like 90% transparent when not active.
I wasn't sure if it was, but I went on the SE account website, and it turns out you can in fact still get the physical security token.