# Maintaining GitHub Apps

After you create and register a GitHub App, you can make modifications to the app, change permissions, transfer ownership, and delete the app.

## Links

* [Modifying a GitHub App registration](/en/apps/maintaining-github-apps/modifying-a-github-app-registration)

  After registering a GitHub App, you can make changes to it.

* [Activating optional features for GitHub Apps](/en/apps/maintaining-github-apps/activating-optional-features-for-github-apps)

  You can test new optional features for your GitHub Apps.

* [About GitHub App managers](/en/apps/maintaining-github-apps/about-github-app-managers)

  App managers can manage some or all of the GitHub App registrations owned by an account.

* [Managing allowed IP addresses for a GitHub App](/en/apps/maintaining-github-apps/managing-allowed-ip-addresses-for-a-github-app)

  You can add an IP allow list to your GitHub App registration to prevent your app from being blocked by an enterprise or organization's own allow list.

* [Suspending a GitHub App installation](/en/apps/maintaining-github-apps/suspending-a-github-app-installation)

  You can temporarily block your GitHub App from accessing resources owned by the accounts that installed the GitHub App.

* [Transferring ownership of a GitHub App](/en/apps/maintaining-github-apps/transferring-ownership-of-a-github-app)

  You can transfer ownership of a GitHub App registration to another user or organization.

* [Deleting a GitHub App](/en/apps/maintaining-github-apps/deleting-a-github-app)

  You can delete GitHub Apps that you own if you no longer want to use or maintain the app.