The SquirrelMail Team is pleased to announce the release of SquirrelMail version 1.4.18. The most notable changes for this version are several security fixes, including a couple XSS exploits, a session fixation issue, and an obscure but dangerous server-side code execution hole. However, this version also includes three new languages and more than a few enhancements to things such as the filters plugin, the address book system and other things under the hood. For more complete details, see the ReleaseNotes and ChangeLog files included in this release (they have moved to the doc/ directory). We advise all users of SquirrelMail software to upgrade.