# XState 5.25.1

- Product: XState (https://whatsnew.fyi/product/xstate)
- Vendor: Stately
- Date: 2026-01-15
- Version: 5.25.1
- Original notes: https://github.com/statelyai/xstate/releases/tag/xstate%405.25.1
- Permalink: https://whatsnew.fyi/product/xstate/releases/5.25.1

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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- **fixed** — Fix systemId cleanup for nested children on stopChild

###### Patch Changes

-   [#5440](https://github.com/statelyai/xstate/pull/5440) [`e36e299`](https://github.com/statelyai/xstate/commit/e36e299a319bc8d0f124f0435b30f095cbbd0ce6) Thanks [@davidkpiano](https://github.com/davidkpiano)! - Fix `systemId` cleanup for nested children on `stopChild`