Even though I've already upgraded to 3.7.1. I get repeated messages at the top of the admin pages:
WordPress 3.7.1 is available! Please update now.
And when I click on that, it says is it all upgraded.
I've used Network Admin -> Dashboard, and clicked on Updates -> Available Updates where it always says:
You have the latest version of WordPress. Future security updates will be applied automatically.
So at that point, the system knows it has been upgraded. Not sure why every hour or so, it "forgets" that and both my sites, using the multi-site language plugin, end up reporting that it is out of date.
Not sure if this is a core WordPress problem, or related to multi-site language switcher. Seems like a WordPress issue, but just in case other MultiSite Language Switcher users have seen this, and know how to fix this, asking this question here...