Shown above the page when the version being read is not the default one.

## Usage

```vue
<DuxtVersionBanner />
```

## API

No props. Reads
[`useDuxtVersion()`](/reference/composables/paths-and-versions/use-duxt-version).

## Notes

The visible half of the version problem. `canonical` and `noindex` tell a crawler
which version to serve; they tell the reader nothing. Someone who arrived on
v0.7.0 from a search result, or from a link in an old issue, sees documentation
that looks exactly like the current one. Either half alone leaves one audience
wrong, so the head tags and this banner ship together.

An `upcoming` version is told its documentation may still change, and is **not**
told to upgrade — that is the one state that must never be reached by guessing.