As part of the new :doc:`addons`, Read the Docs displays notifications in the following situations:
- Pull request notification
- This notification warns users letting them know the documentation page they are reading comes from a pull request to clearly distinguish this version from the official one.
- Non-stable notification
- A notification on all non-stable versions is shown to clearly communicate to readers they may be reading an outdated version of the documentation.
- Latest version notification
- A notification shown on the latest version tells readers they are reading the latest/development version of the documentation that may include features not yet deployed.