Telegraf 1.37 Release Notes

By Sven Rebhan Developer Product
Dec 16, 2025

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A new feature-bearing release for Telegraf is now available:

You can find the binaries for the latest Telegraf release on our Downloads page. Many thanks to all the open source community members who contributed to this effort!

New plugins

These are the newest plugins, first available in this version:

  • Loki LogQL input (inputs.logql)
    • Query data from Grafana Loki using LogQL
    • Contributed by srebhan
  • NFTables input (inputs.nftables)
    • Gather packets and byte counters for rules within Linux’s nftables
    • Contributed by ansoni
  • Prometheus PromQL input (inputs.promql)
    • Query metrics from Prometheus using PromQL
    • Contributed by srebhan
  • Timex input (inputs.timex)
    • Gather metrics on system time using the Linux Kernel adjtimex syscall
    • Contributed by HappyTobi
  • ARC-DB output (outputs.arc)
    • Write metrics to Arc, a high-performance time series database
    • Contributed by xe-nvdk
  • Heartbeat output (outputs.heartbeat)
    • Send a heartbeat signal via POST to a HTTP endpoint on a regular interval
    • Contributed by srebhan
  • Google Cloud secret-store (secretstores.googlecloud)
    • Retrieve token-based Google Cloud Credentials
    • Contributed by iti-agrawal
  • HashiCorp Vault secret-store (secretstores.vault)
    • Retrieve secrets stored in a HashiCorp Vault server
    • Contributed by mstrandboge

Important changes

Here are some changes to highlight:

  • Handling of environment variables
    • Telegraf v1.36.4 introduced a strict handling mode to prevent security issues. You can opt in using --strict-env-handling.
    • This version adds an explicit opt out of the strict handling mode via --non-strict-env-handling. While the current default is still the non-strict handling mode, this flag was introduced in preparation for the next steps.
    • In the next release (v1.38.0), we will change the default to strict handling of environment variables to be secure by default.

    • Please check if your configuration works in strict environment variable handling mode! You can do this by running:

      telegraf config check –strict-env-handling

Check if TOML syntax errors appear. If so, please opt out of non-strict handling to ensure smooth future updates. * Support for IP filtering on socket_listener * Allows users to restrict remote senders to an IP whitelist. * Removal of deprecated options * We removed several deprecated options and option values in a number of plugins. * OPCUA self-signed certificates * Allows users to persist certificates auto-generated by the OPCUA plugins.

Downloads

Head to our Downloads page to get the latest Telegraf release. If you have issues or questions, please join our InfluxDB Community Slack or post them in our InfluxDB GitHub Repo or Community Site, and we will look into them.

InfluxDB University

Learn more about collecting data with Telegraf by taking the free InfluxDB University Data Collection with Telegraf course.