# XState 6.0.0-alpha.38

- Product: XState (https://whatsnew.fyi/product/xstate)
- Vendor: Stately
- Date: 2026-08-15
- Version: 6.0.0-alpha.38
- Original notes: https://github.com/statelyai/xstate/releases/tag/xstate%406.0.0-alpha.38
- Permalink: https://whatsnew.fyi/product/xstate/releases/6.0.0-alpha.38
- Labels: Pre-release

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** — Restoring a persisted snapshot whose state value references a state that no longer exists on the machine now throws a descriptive error with the full state path for nested states and validation for parallel state regions

###### Patch Changes

- 8aaac46: Restoring a persisted snapshot whose state value references a state that no longer exists on the machine now throws a descriptive error, e.g.:
  
  ```
  Persisted snapshot references state 'reviewing' which does not exist on machine 'order-approval'.
  ```
  
  Nested state values report the full state path (e.g. `'active.reviewing'`), and parallel state regions are validated as well.