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docs: note before/afterUpdate breaking change #14567

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Rich-Harris merged 1 commit into from
Dec 5, 2024
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docs: note before/afterUpdate breaking change #14567

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2 changes: 2 additions & 0 deletions documentation/docs/07-misc/07-v5-migration-guide.md
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Expand Up @@ -823,6 +823,8 @@ The `foreign` namespace was only useful for Svelte Native, which we're planning

`afterUpdate` callbacks in a parent component will now run after `afterUpdate` callbacks in any child components.

`beforeUpdate/afterUpdate` no longer run when the component contains a `<slot>` and its content is updated.

Both functions are disallowed in runes mode — use `$effect.pre(...)` and `$effect(...)` instead.

### `contenteditable` behavior change
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