The new scheduled-stable release of rsyslog, version 8.2512.0 (2025.12), is now available. As the company behind rsyslog, Adiscon contributed a substantial portion of the engineering work in this cycle — including major module enhancements, complex PR integrations, and broad improvements in documentation, CI, and AI-assisted tooling. Several items listed in the rsyslog changelog without explicit attribution were also implemented by Adiscon.
This scheduled-stable version is a bi-monthly snapshot of daily-stable and provides a predictable update point for operators. For full technical details, please refer to the rsyslog 8.2512.0 release announcement on rsyslog.com.
Highlight 1: mmsnareparse – the latest major contribution by Adiscon
The newest major feature delivered by Adiscon for this release is the extended mmsnareparse module, developed by André Lorbach (Adiscon). These enhancements expand SNARE-style and Windows Event parsing capabilities inside rsyslog.
- Configurable trailing-pattern search window
- POSIX regex support for dynamic trailing-data removal
- Enhanced
ignoreTrailingPatternhandling - Support for Sysinternals Sysmon events via external JSON files
This work draws directly on Adiscon’s deep commercial experience with Windows Event Log technologies. It is a clear example of how our open-source and commercial development reinforce each other.
You can learn more about this interplay in our article on open source and commercial development at Adiscon.
Highlight 2: Network Namespace foundation (community development + Adiscon integration)
rsyslog 8.2512.0 completes the foundational implementation of Network Namespace support. The feature was developed by Billie Alsup, while Adiscon carried out the extensive and technically challenging integration effort needed to merge the work into the rsyslog core architecture, update dependent modules, and ensure consistent test coverage.
This prepares rsyslog for namespace-aware deployments across modern Linux environments.
Highlight 3: omhttp refactoring – major contribution by Adrien GANDARIAS
The omhttp module underwent a substantial refactoring and feature expansion contributed by Adrien GANDARIAS (shinigami35 on GitHub). The pull request was complex and required significant integration work by Adiscon.
- New explicit Splunk HEC profile
- Per-destination server statistics
- Internal restructuring for long-term maintainability
This upgrade strengthens rsyslog’s HTTP/Splunk HEC output and creates a basis for future work in this area.
Additional Adiscon engineering: documentation, CI, AI tooling, integration work
Beyond the highlighted contributions, a significant number of improvements in this release — including some not individually attributed in the changelog — were implemented by Adiscon. These include:
- Documentation restructuring and topic modernization
- Adjustments to CI infrastructure and test coverage
- AI-assisted documentation and code-quality workflows
- Internal maintenance, refactoring, and integration changes across multiple modules
- General polishing and correctness fixes that were not explicitly credited
This behind-the-scenes work forms a major part of each rsyslog release cycle and ensures the long-term stability and evolution of the project.
Full technical details
All module-level changes, fixes, and test updates are available in the full rsyslog 8.2512.0 release announcement.
We thank every contributor involved in this release — both Adiscon engineers and community contributors — for their hard and extremely valuable work.