Telegraf v1.38.0 released on 09-03-2026
Telegraf v1.38.0 is out now. Strict environment variable handling is the default in this release, changing how configuration and runtime environment substitutions are processed.
See the project’s GitHub release for full notes, package downloads and SHA256 checksums for verification.
What’s in this release
- Strict environment variable handling becomes the default (PR #17961), which may affect existing configurations and runtime substitutions.
- Two new plugins: inputs.sip for SIP metrics collection and outputs.influxdb_v3 for native InfluxDB v3 output.
- Feature improvements across core and plugins, including agent disk buffer strategy optimisation and OPC UA additions (string node ID configuration option and datetime array support).
Upgrade notes
- Strict environment variable handling may change behaviour; to restore the previous behaviour start Telegraf with the –non-strict-env-handling flag.
- Release artifacts and SHA256 checksums are provided for multiple platforms — verify packages before deploying an upgrade.
Tried the release or hit a snag? Share your experience so others can learn from your upgrade path.