# Tracker maintenance classification
> Understand the maintenance groups for Snowplow trackers, dbt packages, and Signals SDKs, including production readiness and update schedules.
> Source: https://docs.snowplow.io/docs/sources/tracker-maintenance-classification/
> Documentation index: https://docs.snowplow.io/llms.txt

Snowplow trackers, dbt packages, and Signals SDKs are categorized into four maintenance groups. These groups set expectations for how Snowplow maintains each project. Each GitHub repository contains a "Snowplow" badge that shows its maintenance group and links back to this page.

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[Unsupported](/docs/sources/tracker-maintenance-classification/ "Deprecated and not maintained")

Not production-ready, not actively maintained. Deprecated.

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[Early release](/docs/sources/tracker-maintenance-classification/ "Before version 1.0.0, may be missing core features")

Pre-Version 1.0.0, may be missing core features. Accepting community contributions. Snowplow Team will test and release contributions. Snowplow Team will update to fix critical or high severity vulnerabilities. Will be released less frequently.

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[Maintained](/docs/sources/tracker-maintenance-classification/ "Production ready, released less often")

Currently production ready. Maintained by the Snowplow team but released less frequently. Accepting community contributions. May not have up to date dependencies or support for latest versions of language or framework. Scanned daily for vulnerabilities, Snowplow Team will fix critical or high severity vulnerabilities promptly.

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[Actively maintained](/docs/sources/tracker-maintenance-classification/ "Production ready, frequent releases, dependencies kept up to date")

Currently production ready. Actively maintained by the Snowplow team, with a frequent release schedule. Accepting community contributions. Dependencies are actively updated and will support the latest versions of language or framework. Scanned daily for vulnerabilities, Snowplow Team will fix all vulnerabilities promptly.

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| Status                                                                                                                                       | Production Ready | Release Frequency         | Accepting Contributions | Dependency and Vulnerability Updates                                                                            |
| -------------------------------------------------------------------------------------------------------------------------------------------- | ---------------- | ------------------------- | ----------------------- | --------------------------------------------------------------------------------------------------------------- |
| [Unsupported](/docs/sources/tracker-maintenance-classification/ "Deprecated and not maintained")                                             | ❌                | Never                     | ❌                       | None                                                                                                            |
| [Early release](/docs/sources/tracker-maintenance-classification/ "Before version 1.0.0, may be missing core features")                      | Varies           | As required               | ✔️                      | - Updates for critical and high severity vulnerabilities                                                        |
| [Maintained](/docs/sources/tracker-maintenance-classification/ "Production ready, released less often")                                      | ✔️               | As required Low frequency | ✔️                      | - Daily scans - Passive updates to dependencies - Active updates for critical and high severity vulnerabilities |
| [Actively maintained](/docs/sources/tracker-maintenance-classification/ "Production ready, frequent releases, dependencies kept up to date") | ✔️               | Frequent release schedule | ✔️                      | - Daily scans - Active updates to dependencies and all levels of vulnerabilities                                |