Recently I was asked if syslog-ng supports Ubuntu 26.04 (Ubuntu Resolute). Yes, and with the arrival of the syslog-ng 4.12.0 release we also provide ready-to-use packages for it. The release notes mention it, and info is in the Readme on GitHub. I tend to mention FreeBSD and openSUSE more often in my blogs (personal preference), so today I installed Ubuntu 26.04 and tested syslog-ng myself. Read more at https://www.syslog-ng.com/community/b/blog/posts/syslog-ng-4-12-0-available-for-ubuntu-26-04-resolute syslog-ng logo

For many years, syslog-ng used Java, where C libraries were unavailable. However, over the years native C libraries became available for Elasticsearch and Kafka, and HDFS practically disappeared. As a “scream test”, I am going to disable Java support in all of my syslog-ng packages. Once upon a time, Java support was added to syslog-ng to be able to load Elasticsearch Java drivers. Later, Kafka, HDFS, and a generic HTTP destination were also added.

Today, the syslog-ng team released three different syslog-ng versions, which provided a good opportunity to wear my “Release is coming” t-shirt. This coordinated release is due to an SQL injection security bug fix, even if most likely it affects less than a handful of people (I mean, is there anyone who still uses SQL to store logs in 2026…?) Release is coming What’s new? syslog-ng OSE 4.12.0 arrives with performance optimizations, making syslog-ng more scalable in several situations.

OpenSSL 4.0 was released just over a month ago. So, how is its support progressing in syslog-ng? Well, Git master already supports it, and the patch is easy to backport to earlier releases. At the same time, version 4.12 will support OpenSSL 4.0 out of the box. A month ago, someone from Gentoo Linux reached out to the syslog-ng team about OpenSSL 4.0 support. I asked the community about their expectations, knowing that version 4.

For many years, the syslog-ng project provided container images based on Debian. Most of our users run syslog-ng on RHEL & compatibles, and have asked for an RPM-based container. So, nightly containers based on Alma Linux are now also available. A while ago, I prepared a small test project to run syslog-ng in an Alma Linux container: https://www.syslog-ng.com/community/b/blog/posts/experimental-syslog-ng-container-image-based-on-alma-linux However, that was only an experiment which I never updated. Fast forward to today: nightly syslog-ng containers based on the latest syslog-ng git snapshot package builds are now available on the Docker Hub!

How can you learn syslog-ng? There are many possibilities, depending on your time and budget. Possibilities range from tutorial series through reading the documentation to instructor-led training. Find out which one is for you! Read more at https://www.syslog-ng.com/community/b/blog/posts/learning-syslog-ng syslog-ng logo

Dear syslog-ng users, This is the 140th issue of syslog-ng Insider, a monthly newsletter that brings you syslog-ng-related news. Streaming syslog-ng data to your lakehouse using OTEL Version 4.11.0 of syslog-ng contains contributions from Databricks related to OAuth2 authentication. Recently, they published a blog about how this enables their customers to send logs to their data lake using syslog-ng and the OpenTelemetry protocol. https://www.syslog-ng.com/community/b/blog/posts/streaming-syslog-ng-data-to-your-lakehouse-using-opentelemetry Central log collection - more than just compliance I often hear, even at security conferences that “no central log collection here” or “we have something due to compliance”.

Fedora 44 was announced last week: syslog-ng 4.11 is part of it. While checking the Fedora Copr build service for Fedora 44, I realized that CentOS 7 and Amazon Linux 2023 packages are also there. I have a few questions about those for you! syslog-ng logo Fedora 44 The availability of the Fedora 44 release was announced last week. Vesion 4.11 of syslog-ng, the current latest release, is part of it.

Although OpenSSL 4.0 released just two weeks ago, the syslog-ng project has already received a GitHub issue complaining that we do not support it. So, before we would allocate too much effort on it: what should we expect? OpenSSL 4.0 was announced on April 14: https://openssl-library.org/post/2026-04-14-openssl-40-final-release/ However, this announcement mentions that it is NOT a long-term support (LTS) release. This raises the question that if it is not an LTS release, then can we stay on version 3.

On April’s fool’s day, I shared that syslog-ng can reach 7 million EPS. This test lab result was in part possible thanks to a few performance enhancements coming to syslog-ng version 4.12. How 7 million EPS is possible? Before diving deeper, let me repeat it: 7 million EPS is just a lab testing result, not (yet) possible in the real world. However, the technologies enabling this are already available on the development branch of syslog-ng, or have been available for ages, just not tested or promoted enough.