Open-Xchange releases Open-Xchange Server 6 v6.18 Release Candidate 4 (RC4)

Today Open-Xchange releases*Open-Xchange Server v6.18.0-Rev4 (RC4). This a fully functional release candidate. It has been tested in limited production environments and can be used for review purposes. In productive environments it should be used with care. Backup frequently!

This release provides various improvements to the user interface including design changes, usability improvements, new features, and bug fixes:

- Social OX – Publish & Subscribe features
- Comfortable Category Assignment
- Alternative Folder Navigation Tree
- Call History for the VoIP-integration
- Several features and functions improvements for all modules
- Many administration-, technical- and plug-in extensions
- New version OXtender for MS Outlook®
- New version OXtender for Mac OS X®

Open-Xchange provides with the new version two main improvements which it is necessary to to adapt for the administrator:

- Important: New Apache settings
New Open-Xchange user interface versioning requires some Apache directives. Further information about the settings are documented at the Installation Guides for the different platforms.

- Persistent Auto login / Enhanced Session handling
Open-Xchange introduces a persistent auto-login mechanism, which allows the user to decide, if he wants (for security reasons) to enter his login and password every time when he opens Open-Xchange, or if he wants to automatically log into OX from his computer ("Remember Me" functionality) as long as the session is available on the server. If the user selects this option, the session information will be stored in two different cookies in the browser and will be valid for a configurable amount of days.

- JavaScript Auto-Versioning
An automated versioning of the JavaScript files has been implemented. With that enhancement it is no more necessary to clean the browsers cache after each Open-Xchange update, the browser will automatically recognize the new version and reload the necessary files.

Please read the Release Notes for further information under:
Configuration Changes -
Change #334 - Auto-Login and Lifetime of Session Cookies
Change #347 - GUI Versioning to Remove the Need for clearing Browser Caches after each Update

Shipped packages and version:

Open-Xchange Server 6 (OX6)
Version: v6.18.0-Rev4 (2010-08-12)
The version number is the same for the groupware server and the groupware front-end.
When reporting bugs, please make sure to include this version number in your bug report.
The version number number can be found*
a) in the Login dialog
b) in the About dialog (Question icon in the upper right -> About)

OXtender for MS Outlook
Version: v6.18.2 (2010-08-11)
When reporting bugs, please include the version number in your bug report.
The version number can be found
a) in the splash screen when starting Outlook
b) Extras -> OXtender for MS Outlook -> About

OX Client Updater
Version: v6.18.1 (2010-07-29)

OXtender for Business Mobility
File names: open-xchange-usm; open-xchange-eas
When reporting bugs, please select “6.18” from the version field.

Complete Release Notes:

Installation of this Preview:
Please follow the instructions given at

and replace stable with 6.18/Beta in the installation instructions.