Telegraf v1.39.1 released on 29-06-2026
Telegraf v1.39.1 is out now. Operators and integrators get a set of targeted bug fixes that address session reload leaks, panics under load, parsing issues and packaging problems.
See the release notes on the project’s GitHub release page for full details, downloads and SHA256 checksums.
What’s in this release
- Build: tarballs are created correctly from the build system, ensuring downloadable archives match expected outputs.
- Inputs.opcua: sessions are closed on stop to avoid reload leaks and client certificates are skipped on unsecured “None” channels.
- Stability and parsing fixes: inputs.tail now avoids panics when closing tailers under load; inputs.temp uses non-blocking hwmon reads; inputs.vsphere restores the vSAN overall_health metric; inputs.smartctl restricts parsing to stdout to prevent corrupting JSON; processors.parser correctly handles metrics without inner timestamps.
Upgrade notes
- OpenWeatherMap: calls to the deprecated v2.5 group API have been removed. Review your openweathermap configuration and apply the provided migration for query_style as documented in the release notes.
- Migrations added for inputs.aerospike, inputs.kafka_consumer (connection_strategy), inputs.openstack (server_diagnostics), inputs.openweathermap (query_style), inputs.tail (from_beginning) and outputs.amon — consult the migrations section before upgrading.
If you upgrade, please share how it goes and report any regressions or unexpected behaviour on the project’s GitHub issues so others can benefit from your experience.
