On Slack we talk about it.

Right now, 0.7.x nodes are on the right chain, 0.6.x and earlier on the wrong chain.
So if you run a node and haven't updated, do it now.

My node was updated to 0.7.6 just an hour after the release and hasn't forked.

Here's a list of nodes, check if yours is on it if you run a node:

http://dev.pywaves.org/nodes