5. Kopano Linux distributions Support Lifecycle Policy

5.1. Linux distributions Support in general

Linux distributions as released by their respective packagers are intensively tested for compatibility with Kopano Core and its usage in various configurations. This is primarily done by Kopano QA and Support and combined with input from clients and community. The distribution group technically compatible with Core is even larger than the selected supported distributions group, but issues are managed in a reactive mode versus a pro-active mode used with the intensively-tested distributions. The distributions intensively tested for compatibility are commonly the Enterprise Linux Distributions which Kopano supports.

5.2. Support definitions of distributions

The support definition below overrules any tabular overviews which are derived from it.


Supported distributions are statically linked to Core major versions meaning that support for a distribution is sustained for a major production version through all Core support periods. If a distribution Core package was initially build for the distribution it will stay on the build and support list. We will add support for new releases of Enterprise distributions (RHEL, Ubuntu, SLES) on the latest production Core major-version within 3 months after general publication as production version of the distribution.

5.3. Distribution vs Core support matrix - supported level

Fully supported Linux distributions, 64-bit only. Releases for these distributions are fully tested before being made available (installation as well as functionality). The table below lists the Linux distributions in this ‘supported’ level. These supported distributions will be taken as a basis to reproduce and resolve any reported issue.

The following table contains the supported Linux distributions for the different Core versions in their supported lifecycle.

Table 2.1. Kopano Core versions against Linux distributions with full support as of 2017-09.

Distribution Primary Support Extended Support
Debian 7 x86_64 Core 8.0
Debian 8 x86_64 Core 8.0
Debian 9 x86_64 Core 8.0
RHEL 6 x86_64 with SCL Core 8.0
RHEL 7 x86_64 Core 8.0
RHEL 7 x86_64 with SCL Core 8.0
CentOS 6 x86_64 with SCL Core 8.0
CentOS 7 x86_64 Core 8.0
CentOS 7 x86_64 with SCL Core 8.0
SLES 12 x86_64 Core 8.0
Ubuntu 14.04 x86_64 Core 8.0
Ubuntu 16.04 x86_64 Core 8.1
Univention Corporate Server 4.x x86_64 Core 8.0

For Ubuntu 16.04, we recommend to use of Kopano Core 8.2 because of additional PHP7 fixes.

5.4. Distribution vs Core support matrix - limited level

Distributions with limited support are built for convenience and our community. These builds are not recommended to be installed for production use. Issues reported with one of the ‘limited support’ distributions will first of all be investigated on a build listed in the ‘supported’ matrix. Issues that can be reproduced on ‘supported’ builds/distributions will receive higher priority in the development cycle.

Table 2.1. Kopano Core versions against Linux distributions with ‘limited’ support as of 2017-09. Kopano limited support ends no later than the point at which the distribution declares a version end-of-life.

Distribution Primary Support Extended Support
Debian 7 i386 Core 8.0
Debian 8 i386 Core 8.0
Debian 9 i386 Core 8.3
Debian 10 i386 Core 8.3
Debian 10 x86_64 Core 8.3
Ubuntu 14.04 i386 Core 8.0
Ubuntu 16.04 i386 Core 8.1
Ubuntu 16.10 i386 Core 8.2
Ubuntu 16.10 x86_64 Core 8.2
Ubuntu 17.04 i386 Core 8.3
Ubuntu 17.04 x86_64 Core 8.3
Fedora 25 i686 Core 8.3
Fedora 25 x86_64 Core 8.3
Fedora 26 i686 Core 8.3
Fedora 26 x86_64 Core 8.3
openSUSE Leap 42.2 x86_64 Core 8.2
openSUSE Leap 42.3 x86_64 Core 8.2
openSUSE Tumbleweed i586, x86_64 Core 8.3