Documentation

Flux data scripting language

This page documents an earlier version of InfluxDB OSS. InfluxDB 3 Core is the latest stable version.

Flux is a functional data scripting language designed for querying, analyzing, and acting on time series data. It takes the power of InfluxQL and the functionality of TICKscript and combines them into a single, unified syntax.

Flux is production-ready and included with InfluxDB v1.8+.

Flux design principles

Flux is designed to be usable, readable, flexible, composable, testable, contributable, and shareable. Its syntax is largely inspired by 2018’s most popular scripting language, JavaScript, and takes a functional approach to data exploration and processing.

The following example illustrates pulling data from a bucket (similar to an InfluxQL database) for the last five minutes, filtering that data by the cpu measurement and the cpu=cpu-total tag, windowing the data in 1 minute intervals, and calculating the average of each window:

from(bucket:"telegraf/autogen")
  |> range(start:-1h)
  |> filter(fn:(r) =>
    r._measurement == "cpu" and
    r.cpu == "cpu-total"
  )
  |> aggregateWindow(every: 1m, fn: mean)

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New in InfluxDB 3.5

Key enhancements in InfluxDB 3.5 and the InfluxDB 3 Explorer 1.3.

See the Blog Post

InfluxDB 3.5 is now available for both Core and Enterprise, introducing custom plugin repository support, enhanced operational visibility with queryable CLI parameters and manual node management, stronger security controls, and general performance improvements.

InfluxDB 3 Explorer 1.3 brings powerful new capabilities including Dashboards (beta) for saving and organizing your favorite queries, and cache querying for instant access to Last Value and Distinct Value caches—making Explorer a more comprehensive workspace for time series monitoring and analysis.

For more information, check out:

InfluxDB Docker latest tag changing to InfluxDB 3 Core

On November 3, 2025, the latest tag for InfluxDB Docker images will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments.

If using Docker to install and run InfluxDB, the latest tag will point to InfluxDB 3 Core. To avoid unexpected upgrades, use specific version tags in your Docker deployments. For example, if using Docker to run InfluxDB v2, replace the latest version tag with a specific version tag in your Docker pull command–for example:

docker pull influxdb:2