WordPress 3.1.4 has been released. This release is a security, and it is important that all users upgrade their sites as soon as possible.
From WordPress.org:
On June 29, 2011, WordPress 3.1.4 was released to the public. This is a security update for all previous WordPress versions.
This release fixes an issue that could allow a malicious Editor-level user to gain further access to the site. Version 3.1.4 also incorporates several other security fixes and hardening measures.
Download WordPress 3.1.4 or update immediately from the Dashboard → Updates menu in your site’s admin area.
Please contact us anytime if you require assistance with your WordPress upgrade.