# Preact 10.29.8

- Product: Preact (https://whatsnew.fyi/product/preact)
- Vendor: Preact
- Date: 2026-08-01
- Version: 10.29.8
- Original notes: https://github.com/preactjs/preact/releases/tag/10.29.8
- Permalink: https://whatsnew.fyi/product/preact/releases/10.29.8

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Batch updates in flushSync
- **changed** — Avoid traversing retained subtrees

##### Performance

- Batch updates in flushSync (#5173, thanks @JoviDeCroock)
- Avoid traversing retained subtrees (#5182, thanks @JoviDeCroock)