The WP Smush.It plugin depended on Yahoo smushing servers… up until now! Yahoo silently took down their servers, leaving users of this plugin in a lurch. So the developers at WPMU have provided a server for the purpose, which requires users to upgrade their plugins.
In the last 24-48 hrs, you might have been surprised by an email in your inbox stating your site’s WordPress version had been udpated to WordPress 3.8.2.
You might be asking yourself, “How? I didn’t ask for that!” Well, the developers at WordPress.org added a new feature in the last release to allow for security updates, using automatic upgrades to accomplish it.
You can read more about the details of 3.8.2 here.