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astro/.changeset/itchy-tigers-help.md

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---
'@astrojs/preact': minor
'astro': patch
---
Shared state in Preact components with signals
This makes it possible to share client state between Preact islands via signals.
For example, you can create a signals in an Astro component and then pass it to multiple islands:
```astro
---
// Component Imports
import Counter from '../components/Counter';
import { signal } from '@preact/signals';
const count = signal(0);
---
<Count count={count} />
<Count count={count} />
```