# MobX 6.12.5

- Product: MobX (https://whatsnew.fyi/product/mobx)
- Vendor: MobX
- Date: 2024-06-30
- Version: 6.12.5
- Original notes: https://github.com/mobxjs/mobx/releases/tag/mobx%406.12.5
- Permalink: https://whatsnew.fyi/product/mobx/releases/6.12.5

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 ES6 Map/Set checks for cross-window scripts

###### Patch Changes

-   [`ba890343`](https://github.com/mobxjs/mobx/commit/ba8903430ce96746db5dcde6b78edeb195ea8018) [#3893](https://github.com/mobxjs/mobx/pull/3893) Thanks [@g6123](https://github.com/g6123)! - Fix ES6 Map/Set checks for cross-window scripts