> ## Documentation Index
> Fetch the complete documentation index at: https://docs.cognite.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Release states

> Definitions of Cognite Data Fusion (CDF) release states (production, public preview, private preview, deprecated), SLA coverage for production, and how deprecation notices apply before retirement.

<Note>
  For API and SDK release channels, refer to [the API changelog](/api-reference/changelog) and the [SDK and toolkit documentation](/dev/sdks/). API versioning uses its own channel names (stable, beta, and alpha bundles); those channels describe how API operations are published and don't map one-to-one to product release states below. See also [Deprecated and retired features](/cdf/deprecated).
</Note>

## Release states

We describe Cognite Data Fusion products and functionality using **release states**. Release states are what we use in contracts, customer communications, and release notes.

### Production

The product or functionality is generally offered as part of Cognite Data Fusion (CDF) and is covered by our [Service Level Agreement (SLA)](https://content.cognite.com/en/legal/cognite-saas-service-level-agreement-sla).

We'll give you a [deprecation notice](/cdf/deprecated) at least **twelve (12) months** before we retire something that is in production.

### Public preview

The product or functionality is **available broadly** but is **not** production yet. It may change or be withdrawn. We'll give you a deprecation notice at least **two (2) months** before we retire it.

### Private preview

The product or functionality is available **only to selected customers**. It may change or be withdrawn. We'll give you a deprecation notice at least **two (2) months** before we retire it.

Private preview may be coordinated through programs such as a [group on Cognite Hub](https://hub.cognite.com/groups).

### Deprecated

The product or functionality is headed for removal. See [Deprecated and retired features](/cdf/deprecated) for timelines and migration guidance.