This is still in progress. The PMO is actively encouraging all in-flight JSRs to upgrade to 2.8 when they submit a new draft or a Maintenance proposal. As for Oracle's JSRs, some have already converted and others will soon.
I'll keep this issue open until it's clear that we're done (or almost done.)
Even though this is not strictly-speaking a JSR 358 issue, I'm moving it over to that project so it won't get lost here. (Otherwise it would be the only remaining open issue for this now-completed project.)