This release introduces new features like synchronization of mobile devices with kolab-z-push or modular packaging of the kolab-webclient, updates of many important components and lots of bugfixes.
Source and binary packages are available from the download page.
See the announcement for details.

Kolab Server development switched to the distributed SCM Git. The repositories are available at git.kolab.org, which is operated by Kolab Systems. For details look at the instructions for using Git for Kolab Server development.

This release contains 20 enhancements and fixes compared to 2.2.3.
Source and binary packages are available from the download page.
See the announcement for details.

Read the press release or visit the homepage of Kolab Systems.

A new kolab-webadmin RPM which fixes a problem with password management is available. See the Kolab Security Issue 27 for details.

A new kolabd RPM which fixes a problem with SpamAssassin is available. See the Kolab Security Issue 26 for details.

This release contains 50 enhancements and fixes compared to 2.2.2.
Source and binary packages are available from the download page.
See the announcement for details.

A new Kontact e4 Installer for Windows is available from the Kolab download server.
See the corresponding readme and wiki page for details.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 25 for details.

A new imapd RPM with a fix for CVE-2009-2632 is available. See the Kolab Security Issue 24 for details.

A new Kontact Installer for Windows is available from the Kolab download server.
See the corresponding wikipage for details.

This release contains 12 enhancements and fixes compared to 2.2.1.
Source and binary packages are available from the download page.
See the announcement for details.

This release contains about 20 enhancements and fixes compared to rc1.
Source and binary packages are available from the download page.
See the announcement for details.

This release contains about 60 enhancements and fixes compared to beta1.
Source and binary packages are available from the download mirrors.
See the announcement for details.

Running the KDE Kolab Client natively on Windows and Mac OS 10 is now possible - at least for the adventurous. The available beta versions are huge, still containing all debugging files. In best tradition of early publication in Free Software development you get them now, despite some known problems, see the corresponding wikipages for Windows and MacOS.

This release contains an improved version of the Kolab Web Client, restructured packages and many important fixes.
Source and binary packages are available from the download mirrors.
See the announcement for details.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 23 for details.

A new ClamAV RPM with various fixes for DoS vulnerabilities is available. See the Kolab Security Issue 22 for details.

Univention, a Kolab Konsortium business partner, integrates the current version of Kontact Enterprise35 and Kolab web client into the groupware part of its enterprise all-in-one solution.
Further information can be found in Univention's press release (German only).

Source and binary packages for Kolab Server 2.2.0 are available from the download mirrors.
See the announcement for details.

Kolab Konsortium and Pardus have implemented an extension to the Kolab Webclient for Univention GmbH, which allows users to connect mobile devices directly to the groupware server. Now it is possible to synchronize appointment times and contact information being offroad.
This was done by integrating the SyncML protocol into the Horde part of Kolab server. SyncML is a platform independent standard designed for the exchange of data between servers, clients and mobile devices.
The Horde interface is going to be integrated into Kolab Server/OpenPKG 2.2.0 as a beta version. Version 2.2.1 is then expected to integrate the SyncML extensions for tasks and contacts. In Univention's UGS the SyncML extensions are available as release candidates for testing purposes.
You can find more information in Univention's press release (German only).

A new ClamAV RPM with a fix for a DoS vulnerability is available. See the Kolab Security Issue 21 for details.

The german Federal Office for Information Security (BSI) has presented a prototype of KDE Kolab Client Kontact on Windows and Mac OS X at the LinuxTag 2008 (may 28th to 31th) in Berlin. These new Kolab clients based on KDE and Qt. They are still in development. A stable release is planed for the end of 2008.

More information:

• Screenshots of Kontact/Win and Kontact/Mac
• BSI press release (2008-05-21)
• German News of Heise (2008-05-29), Linux-Magazin (2008-05-29) and Golem (2008-05-30).

SyncKolab was written to add Kolab functionality to Thunderbird. It reads a selected Imap folder and synchronizes it with the local address book and calendar. It has been tested under Thunderbird for Windows (XP and Vista), MacOSX and Linux. Version 1.0 had 61 prereleases and 83 nightly releases with over 100 bugs fixed and is known to work nicely with Thunderbird 2 and Lightning 0.8.

Source and binary packages for Kolab Server 2.2 Release Candidate 3 are available for download.
See the announcement for details.

A new mailinglist for german-speaking Kolab users is now available. See here for subscribe to the kolab-users-de list.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 20 for details.

This release contains bug fixes and some new minor features. Source and binary packages for Kolab KDE Client 2.1.12 are available for download.
See the announcement for details.

Source and binary packages for Kolab Server 2.2 Release Candidate 2 are available for download.
See the announcement for details.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 19 for details.

Source and binary packages for Kolab Server 2.2 Release Candidate 1 are available for download.
Since 2.2 beta 2 the Kolab server provides a web client that supports all the groupware features known from Outlook and Kontact. Thus users are less dependent on their local client and can access their groupware data from anywhere in the world provided they have a standard browser available.
See the announcement for details.

The new "Operating manual for Kolab Server 2.2" and example slides for Kolab presentations can be downloaded from the documentation page.
See the announcement for details.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 18 for details.

Source and binary packages for Kolab Server 2.2 Beta 3 are available for download.
Since 2.2 beta 2 the Kolab server provides a web client that supports all the groupware features known from Outlook and Kontact. Thus users are less dependent on their local client and can access their groupware data from anywhere in the world provided they have a standard browser available.
See the announcement for details.

This release contains some bug fixes. A tarball and release notes with a list of the changes can be found in the Kolab download area once the mirrors have been updated.
See the announcement for details.

This release contains several bugfixes and some minor features.
See the announcement for details.

A new ClamAV RPM with various fixes is available. See the Kolab Security Issue 17 for details.

The change of this release is a redesign of the sources for filtering. It is now possible to select the source folders. With this new feature filtering is no longer a problem, especilly a groupware folder is only filtered, if the folder is selected. This release also contains several bugfixes. See the announement for details.

Metaeye Security Group discovered that ClamAV crashes due to processing of standard filters in RAR VM, while processing a corrupted RAR file. A new ClamAV RPM with a fix is available. See the Kolab Security Issue 16 for details.

Some vulnerabilities were found in the Clam AntiVirus package. A new ClamAV RPM with a fix is available. See the Kolab Security Issue 15 for details.

Source and binary packages for Kolab Server 2.1.0 can be downloaded from erfrakon, Belnet or Belnet via ftp.
See the announcement for details.

This release contains several bugfixes and some minor features.
See the announcement for details.

This release fixes more than 20 problems found in RC 1 and contains updated translations. Some security issues were fixed in clamav, spamassassin and file. See the announcement for details.

In an effort to further increase the quality and usefulness of the Kolab Groupware Solution, jointly developed by KDAB with its partners in the Kolab Konsortium, KDAB now contracts Gunnar Wrobel of P@rdus to accelerate development of the Horde web client, the preferred web client for the Kolab solution. Gunnar will also maintain community relations on behalf of KDAB.
Read the announcement

• Bernhard Reiter will be representing Intevation and the Kolab Konsortium at the "Open Source for small business - ExChange alternatives put to test" panel-discussion.
  CeBIT SME Forum - Hall 5, Booth B48, March 21st, 3.15pm - 4.30pm
  
  
• The Kolab-Konsortium Business Partner Univention will be presenting the Kolab based Univention Groupware Server (UGS) at Cebit.
  CeBIT - Linux-Park - pavillion 5 - booth 57/3, March 15th - 21rd in Hannover(in German)
  
  Univention will also give a talk about "Migration to a free Groupware Server - Microsoft Exchange to Kolab2" as part of the IX Forum Software & Systems discussion.
  CeBIT, IX Forum Software & Systems - pavillion 3 - booth B19, Wednesday March 16th, 10.00pm(in German)

This release contains several fixes and a few new features. See the announcement for details.

This release fixes more than 10 problems found in Beta 4 and includes the security updates published until now. See the announcement for details.

This release fixes more than 20 problems found in Beta 3 and includes the security updates published until now. See the announcement for details.

Two remotely exploitable vulnerabilities were found in the Clam AntiVirus package. A new ClamAV RPM with a fix is available. See the Kolab Security Issue 14 for details.

This release fixes more than 30 problems found in Beta 2 and includes the security updates published until now. See the release notes for more details and information on upgrading from Kolab Server 2.0 to 2.1.

Univention, business partner of Kolab-Konsortium, presents the Kolab-based Univention Groupware Server (UGS).
(Special exhibition Linux/OS in the office, hall 11.2)

This release contains several fixes and a few new features, like:

• Ability to add ones signature at top of an email reply automatically or manually at the cursor position.
• An extra button to send an email to results of LDAP queries and the possibility to reach that query dialog directly from the address selection dialog.

The release notes contain the full list.

Univention, business partner of Kolab-Konsortium, shows the Kolab-based Univention Groupware Server (UGS).
(hall 3 - booth A3.441-12)

Two remotely exploitable vulnerabilities were found in the Clam AntiVirus package. A new ClamAV RPM with a fix is available. See the Kolab Security Issue 13 for details.

The last Kolab Security Advisory contained an incorrect fix for one of the OpenSSL problems. A new OpenSSL RPM for Kolab Server 2.0.4 is available. The 2.1 branch update is not affected. See the Kolab Security Advisory 12 for details.

Several critical problems were discovered in in the cryptography toolkit OpenSSL. A new OpenSSL RPM is available. See the Kolab Security Advisory 11 for details.

This release contains a fix for a bug introduced in 2.1.3. The bug makes kontact much harder to use when accessing the same kolab account from multiple machines.

This release contains a few new features and several bug fixes. A detailed list of the changes can be found in the download section.

This release contains some security fixes, including the one for Kolab Security Advisory 10 and bug fixes, most notably several for the resource manager.

The Clam AntiVirus package's freshclam has a buffer overflow defect that can be exploited remotely. A new ClamAV RPM with a fix is available. See the Kolab Security Advisory 10 for details.

One month after the last release we are happy to announce that a new Proko2 KDE client is out. This is mainly a bugfix release.
Take a look at the release notes in the download section for a detailed view of all applied changes.

Here is a short overview of the new features and bugfixes.

• New: Show quota information in the folder tooltip
• New: Allow ";" as additional address separator
• New: Show detailed information about recurrences of events in the invitation mail
• Fixed: Ressource colors doesn't disappear when deleting an event from the calendar.
• Fixed: Groupwarefolders are now unsubscribed for online imap after setup with kolabwizard.

Take a look on the download section to get the new release.

If you happen to visit Seoul from the 5th to the 7th of June, drop by the LWCE and visit the Kolab booth (H34). On the 7th Bernhard Reiter will give a talk about Kolab on the afternoon.

This release is a bugfix release decorated with some nice new features which are mainly backports from the KDE 3.5 branch.
Take a look at the release notes in the download section for a detailed view of all applied changes.

A short excerpt of the included features and bugfixes.

• New: Coloring of different calendar ressources
• New: Speed Improvements on large calenders
• New: Better support for online/offline working
• Fixed: Many issues related to groupwarefolders in a dIMAP/IMAP environment.

Take a look on the download section to get the new release.

The Clam AntiVirus package's freshclam has a buffer overflow defect that can be exploited remotely. A new ClamAV RPM with a fix is available. See the Kolab Security Advisory 09 for details.

Kolab Groupware will be present at the LinuxTag Expo and Conference held in Wiesbaden, Germany, from May 3rd to 6th. You can find the Kolab-Konsortium at the Intevation Booth (Hall 9, booth 930)

Six months after the last release we are happy to announce that a new release of the Kolab 2 KDE Client is ready for download. We call it 2.1.0 as it includes some new features and a lot of bug fixes.
Take a look at the release notes in the download section for a detailed view of all applied changes.

Here some of the new features coming with the new release:

• Support for online and offline mailfolders. Choose which part of your mails escort you to your offline journeys
• Implemented offline support of your LDAP addressbook
• Support for displaying Quota information
• Improved detection and protection against ghost messages in case of a crash
• Sync with Palm devices in KPilot is significantly improved after resolving many KPilot bugs. One known problem remains. Please look in the release notes.

Take a look on the download section to get the new release.

Kolab Groupware will be at the world largest computer fair CeBIT (March 9th − 15th, 2006). Visit Kolab in hall 5 (KDE booth somewhere close to F56), hall 5 F58/2 and hall 4, booth F52. On selected days, someone from the Kolab-Konsortium will visit the fair. So if you want to talk to KK: Schedule an appointment in advance.

With the default configuration of the Kolab server, passwords used for authenticated SMTP are written to a logfile in some circumstances. See the Kolab Security Advisory 08 for details. Note that the new stable server release, 2.0.3 already contains the fix for this problem.

Three critical problems came up basically at the same time and triggered the release of Kolab Server 2.0.3 fixing them. See the Kolab Security Advisory 08 for details on one of the problems fixed by this release. If you run a Kolab Server, we strongly recommend updating.

Accumulating the recent security fixes and a couple of minor bugfixes done over the last months, Kolab Server edition 2.0.2 is now available from your favourite mirror.

Under special circumstances emails are changed by the Kolabfiler, leading to broken email-signatures or attachments. A patch fixing the problem is available. See the Kolab Security Advisory 07 for details.

Kolab has been given the Linux New Media Award 2005 in the category 'Best Groupware Server'. The jury chose Kolab on top of contenders like Openexchange, OpenGroupware, GroupWise, eGroupWare, Scalix and Lotus Notes. This was revealed during a ceremony Tuesday evening at the LinuxWorld Expo 2005 in Frankfurt, Germany.

Read the full press release.

The Clam AntiVirus package contains a boundary condition error and fails to handle exceptional conditions, which can be exploited remotely. A new ClamAV RPM with a fix is available. See the Kolab Security Advisory 06 for details.

The obmtool.conf file distributed with Kolab Security Issue 04 may cause a downgrade of clamav to a vulnerable version. See the Kolab Security Advisory 05 for details.

A potential SSL 2.0 protocol rollback attack vulnerability exists in the cryptography toolkit OpenSSL. The vulnerability potentially affects applications that use the SSL/TLS server implementation provided by OpenSSL. A new OpenSSL RPM is available. See the Kolab Security Advisory 04 for details.

The Clam AntiVirus package contains a boundary condition error and fails to handle exceptional conditions, which can be exploited remotely. A new ClamAV RPM with a fix is available. See the Kolab Security Advisory 03 for details.

The now published 2.0.1 edition of the Kolab Server is based on OpenPKG 2.4 and contains a few security updates from OpenPKG. In addition a few bugs have been fixed. We recommend to update!

The Clam AntiVirus package contains several buffer overflows that can be exploited remotely. A new ClamAV RPM with a fix is available. See the Kolab Security Advisory 02 for details.

Almost two years after the stable release of Kolab 1, the Kolab team is proud to present the stable releases of Kolab Server 2.0 and KDE Kolab Client 2.0!

Check out the official press release, get the packages from the mirrors and watch out for Kolab at Linuxtag2005 starting Wednesday in Karlsruhe.

The latest and probably last release candidate for the Kolab Server 2 comes with two important bugfixes and draws a few security updates from OpenPKG. After a brief testing period it will become the stable release.

The third release candidate of the KDE Kolab2 Client based on KDE 3.3 is public. After a short final testing period it will be declared stable.

The third release candidate of the Kolab2 Server implementation fixes a few important bugs.

Check out the following dot.kde story: KDE Project Offers Kolab Groupware Services to its Contributors.

With many contributors working on the beef of the Kolab product, we are very glad, that slowly more help with the documentation is coming in. Thanks to Michael Feilner we have the first picture of the KDE Kolab2 clients in our screenshot section. Needless to say: We are looking for more.

Life is getting easier for our German speaking users as Werner Sorgenfrei has translated the KDE Kolab Client setup manual.

The mirrors have the second release candidate of the server for you. Because of a bug found in RC1 and RC2, RC3 is not far away. Check the updated RC2 release-notes for details of the bug and a temporary workaround.

Kolab-Konsortium (German Page), formed by the companies Intevation GmbH and Klarälvdalens Datakonsult AB, started commercial support for Kolab Groupware. The consortium aims to complement the open Kolab Project with a standardised technical support offer in order to ensure a sustainable development. Individual commercial support continues to be available by several companies. (The web-site of Kolab-Konsortium is in German, availability of English version will be announced here.)

See the German press release for more details.

The first release candidate for Kolab 2 Server is public. Like the couple of last betas there are only a few minor fixes and improvements in this release.

The KDE Kolab2 client has been published as "release candidate 1" tarball based on KDE 3.3. A logical consequence of good experiences with this software within the last months. Get it from the download servers along with the release notes. The release comes so late, because: KDE packagers tend to build from stable CVS branches and often do not rely on tarballs anyway.

On a related note: Toltec 2.0 release candidate 2 is also available.

The fith beta of Kolab 2 Server comes with minor fixes and improvements.

For German readers the new Kolab2 Installationsanleitung describes how to setup the server and clients and has many screenshots. It was contributed by Giovanni Baroni from activmedia.

Today the 0.4.0 beta version of Sync Kolab for was announced. This Thunderbird plugin is compatible with the old Kolab1 storage format and allows to sync contacts, events and tasks. The author Niko Berger is seeking feedback on the Kolab-users list and currently works on a Kolab2 version of Sync Kolab.

The forth beta of the Kolab 2 Server now also offers a German admin interface. The team welcomes additional translations. Some minor improvements were made and, as always: The mirrors are your friends. Thanks to Belnet at this point for providing another mirror for Kolab.

The third beta of the Kolab 2 server implementation is out on the mirrors. It fixes security issues and a few bugs. Details can be found in the release notes.

If you happen to attend CeBIT you can peek a look at Kolab 2 in the KDE booth in Hall 6, LinuxPark. CeBIT is the worlds largest trade show and runs from March 10th to 16th 2005 in Hannover, Germany.

A security problem affecting Kolab 1 and 2 servers has been discovered. Installations where the manager password suggested by the boostrap script was accepted unchanged and some development installations are vulnerable. Fixes are available. See the Kolab Security Advisory 01.

Today Radley Network Technologies announced a public beta of its Toltec Connector 2.0 product. Toltec 2.0 is a proprietary plug-in which enables Outlook to act as Kolab2 client using the Kolab2 storage format.

The Kolab project has put a public beta1 tarball of its Free Software KDE Kolab2 client on the download mirrors. It is based on the CVS 3.3+proko2 branch which has seen most Kolab quality control and is the recommended version for production systems.

Mirrors will soon have caught up with the 2nd beta of Kolab2's server implementation. Many bugs got fixed, check the release notes for details and upgrading hints.

A new version of the personal information management application Aethera was released. In version 1.2.0 the Kolab1 client support was improved.

The implementation of Kolab2's server is available as first beta now. Get it from the mirrors and help iron out the last bugs.

There is a new experimental wiki especially for Kolab documentation: Reach it via the link in the navigation.

The forums were down for about 3 weeks after they have been broken into. Now they are back up again! Thanks to Olaf Boehm for running this service for the Kolab community.

Two new mirrors of ftp.kolab.org are available. They carry development snaphots of the Kolab2 Server.

The upcoming Kolab2 implementations will use a new format for saving its data on the server. This has been discussed on the format list and specs are in CVS. Now a draft pdf version is available in the documentation section.

Freebusy handling, directory server architecure and lack of legacy support make it slightly different, but Citatel/UX v6.21 was fully tested with KDE Kolab1 Clients.

A new security advisory for the Kolab server is available. Users are urged to update as soon as possible.

The currently in-development Kolab Webclient has been updated with several new features.

Kolab2 development has kicked off. Join the development list if you would like to be a part of shaping the next generation Kolab server.

The Aethera cross-platform groupware client now has support for the Kolab server as a groupware backend.

An issue tracker has been lauched to handle bug and feature request tracking for the Kolab server. Users are encouraged to submit bug reports for any issues they may encounter to the tracker in aid the developers with bug fixing.

A forums for general discussion of the Kolab server has been lauched as an alternative to the mailing lists.

A call for shared funding has posted to the list in order to speed up development of this useful feature.

The Kroupware Project has been completed, and as a result Kolab has emerged.