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base repository:sveltejs/svelte
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base:svelte@5.43.14
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compare:svelte@5.43.15
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- 4commits
- 19files changed
- 4contributors
Commits on Nov 24, 2025
fix: don't execute attachments and attribute effects eagerly (#17208)
* fix: don't execute attachments and attribute effects eagerlyattributes_effect and attachments are blocks since they need the managed "don't just destroy children effects"-behavior, but they're not block effects in the sense of "run them eagerly while traversing the effect tree or while flushing effects". Since the latter was the case until now, it meant that forks could cause visible UI updates.This PR introduces a new flag to fix that. `BLOCK_NON_EAGER` is basically a combination of block effects (with respects to the managed behavior) and render effects (with respects to the execution timing).Fixessveltejs/kit#14931* managed_effect
fix: store forked derived values (#17212)
We have to take non-tracking contexts into account, especially while in the original `fork(() => ...)` context.Closes#17206---------Co-authored-by: Simon Holthausen <simon.holthausen@vercel.com>
chore: lift "flushSync cannot be called in effects" restriction (#17139)
Since async-await was introduced into the code base a lot has changed. This lifts the restriction.Closes#17131 (though I still wonder why Skeleton does that)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
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