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ClearOS Community 6.4.0 Final Release Information

Released: April 11, 2013

ClearOS Community 6.4.0 has arrived! Along with the usual round of bug fixes and enhancements, this release introduces a new reports engine, a storage manager, an antimalware file scanner, a basic POP/IMAP server, RADIUS, mail retrieval (fetchmail) as well as upstream proxy support.

Changes Since Beta 2

Only bug fixes and usability updates have been included since beta 2. The full changelog is here.

What's New in ClearOS Community 6.4.0

The following is a list of new features in ClearOS Community 6.4.0.

For businesses and organizations, ClearOS Professional 6.4.0 also includes:

  • Amazon EC2 Images
  • Samba 4 Directory (Alpha)

There have also been a couple of apps already released since ClearOS 6.3.0:

The full changelog can be found here:


Please see the Downloads page for download information.

Upgrade from ClearOS Community 6.3.0

ClearOS follows the same release pattern as upstream. There is really only a single “ClearOS 6” version - the minor releases are just snapshots in time with bug fixes, enhancements, etc. If your system has automatic updates enabled, your ClearOS system will have transitioned to ClearOS 6.4.0. For those with automatic updates disabled, upgrading is as simple as running:

yum upgrade

ClearOS 5.2 Differences

For ClearOS 6, the barrier for having an app available in the web interface was raised. If the quality or features in ClearOS 5.2 were not up to the standards of a modern small business server/gateway, the feature was either upgraded or deprecated.

Zarafa for ClearOS

The default groupware and mail solution is now based on Zarafa technology.


Horde/Kolab has been deprecated and is no longer supported. This policy may change in a future ClearOS 6 release.

Advanced Firewall

The Advanced Firewall app was marked as deprecated in version 5.2. It is no longer available. The Custom Firewall can be used as an alternative.


The Administrators app does not fit into the group-based policy engine in ClearOS 6. The underlying mechanism that existed in ClearOS 5 has been ported to version 6, but it requires command line configuration.

Flexshare Mail Option

The Flexshare mail option was dropped due to incompatibilities with the group system structure. Notably, the option is not compatible when Active Directory Connector or Samba 4 are installed.


The Dynamic VPN app provides advanced IPsec support in ClearOS Professional. The unmanaged IPsec tool has been replaced by the 3rd party Static IPsec VPN app. The new app is much more powerful than what was provided in ClearOS 5.x!

Mail Archive

The Mail Archive module in 5.x has not been converted over to the new 6.x framework. This app will be re-introduced into the ClearOS Marketplace in the future.

Mail Quarantine

The mail quarantine software is no longer maintained by the app developer and is no longer available.

content/en_us/announcements_releases_clearos_community_6.4.0_final_release_information.txt · Last modified: 2015/02/10 09:15 (external edit)