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syslog-ng Premium Edition 7.0.20 - Release Notes

Release Notes

syslog-ng Premium Edition 7.0.20

Release Notes

April 2020

These release notes provide information about the syslog-ng Premium Edition release.

About this release

Welcome to syslog-ng Premium Edition (syslog-ng PE) version 7.0.20 and thank you for choosing our product. This document describes the new features and most important changes since the latest release of syslog-ng PE. The main aim of this paper is to aid system administrators in planning the migration to the new version of syslog-ng PE. The following sections describe the news and highlights of syslog-ng PE 7.0.20.

Starting with version 7, syslog-ng Premium Edition is released as a rolling release. For details, see the Version policy.

Supported platforms

The syslog-ng Premium Edition application is officially supported on the following platforms. Note that the following table is for general reference only, and is not always accurate about the supported platforms and options available for specific platforms. The latest version of this table is available at Unless explicitly noted otherwise, the subsequent releases of the platform (for example, Red Hat Enterprise Linux 7 and its update releases like 7.2) are also supported.

Table 1: Platforms supported by syslog-ng Premium Edition

x86 x86_64 SPARC SPARC64 PowerPC IA64
CentOS 6 - - - - -
CentOS 7 - - - - -
CentOS 8






Debian 8 (jessie) - - - - -
Oracle Linux 6 - - - - -
Oracle Linux 7 - - - - -
Red Hat EL 6 - - - - -
Red Hat EL 7 - - - - -
Red Hat EL 8






SLES 12 - - - - -
Ubuntu 16.04 LTS (Xenial Xerus) - - - - -
Ubuntu 18.04 LTS (Bionic Beaver) - - - - -


Certain sources and destinations are not supported on every platform (particularly, the sql() destination, and the hdfs() destination). For details, see the description of the specific source and destination.


If you are planning to use Python in syslog-ng PE (for example, Python parser or Python template function) on RHEL 6 platform, then you have to manually install Python 2.7. If the Python version on the machine is not 2.7, you will receive a similar error message during startup:

[2017-07-27T13:42:03.606679] Reading shared object for a candidate module: path='/opt/syslog-ng/lib/syslog-ng', fname='', module='mod-python' [2017-07-27T13:42:03.606994] Error opening plugin module: module='mod-python', error=' cannot open shared object file: No such file or directory'

For details about the syslog-ng Agent for Windows application, see the syslog-ng Agent for Windows documentation. For an agent-less solution, see the list of supported platforms.

For using syslog-ng PE on other platforms (for example, AIX, FreeBSD, HP-UX, Solaris, Microsoft Windows), see the list of supported platforms in the syslog-ng PE version 6 Administration Guide.

New features in syslog-ng PE 7.0.20

Version 7.0.20 of syslog-ng PE includes the following main features.

  • Red Hat EL 8 support

    Starting with version 7.0.20, syslog-ng PE supports Red Hat EL 8 (kernel version 4.18).

  • SNMP destination

    The snmp() destination of syslog-ng PE can send log messages to an SNMP destination.

  • The syslog-ng PE application uses its own Python interpreter

    Starting from version 7.0.20, the syslog-ng PE application uses its own Python interpreter (shipped with the default syslog-ng PE installation) instead of the system's Python interpreter.

    NOTE: The syslog-ng PE application's built-in Python interpreter only supports Python 3. As a result, any custom Python code used in syslog-ng PE must be compatible with Python 3.

  • Disabling and forcing TLSv1.3 in TLS contexts
    • The tlsv1_3 value has been added to the available values of ssl-version() for drivers based on the http() destination.

    • The no-tlsv13 value has been added to the available values of ssl-options() in TLS contexts.

  • New statistics item: the connections counter

    The connections counter of syslog-ng PE displays the number of active connections for network-based sources in the syslog-ng-ctl stats statistics information.

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