> ## Documentation Index
> Fetch the complete documentation index at: https://wundergraphinc-brendan-add-sof-link.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Feature Subgraph

> An overview of feature-subgraph (alias "fs") commands.

Federated graphs are composed of "base subgraphs". Feature subgraphs represent a replacement (or "override") for a specific base subgraph. A feature subgraph exists only as long as its base subgraph also exists.

Creating a feature subgraph does nothing in isolation. It must be added to an enabled [feature flag](/concepts/feature-flags) to be considered by composition.

## Minimum Requirements

| Package                 | Minimum version                                                                |
| ----------------------- | ------------------------------------------------------------------------------ |
| [wgc](/cli/intro)       | [0.58.0](https://github.com/wundergraph/cosmo/compare/wgc@0.57.7...wgc@0.58.0) |
| [router](/router/intro) | [0.95.0](https://github.com/wundergraph/cosmo/releases/tag/router%400.95.0)    |

<CardGroup>
  <Card title="Create Feature Subgraph" href="/cli/feature-subgraph/create-feature-subgraph" icon="plus" horizontal />

  <Card title="Publish Feature Subgraph" href="/cli/feature-subgraph/publish-feature-subgraph" icon="upload" horizontal />

  <Card title="Update Feature Subgraph" href="/cli/feature-subgraph/update-feature-subgraph" icon="pen-to-square" horizontal />

  <Card title="Delete Feature Subgraph" href="/cli/feature-subgraph/delete-feature-subgraph" icon="trash" horizontal />
</CardGroup>