After upgrading from WP 3.6.1 to 3.7 on one customer's site, plugin updates were immediately not seen in the WP Dashboard. What makes matters worse, using a plugin like Wordfence doesn't work -- available updates are missed.
I saw the Core Control plugin mentioned in other support forum topics, so I tried it. Too bad, even that doesn't see updates to plugins are available.
Manually downgrading to 3.6.1 and earlier works. Any ideas what could be going on?