Apple has updated iOS 7. You can now download version 7.0.4 by connecting your device to iTunes and downloading and installing the update, or over the air directly onto your device.
The update isn’t anything major. It’s really just some minor bug fixes and improvements. The biggest update is a fix for a FaceTime issue in which calls failed for some users.
It’s about a 17MB download, so downloading the update takes about a minute or so, if that.