# MobX 6.3.6

- Product: MobX (https://whatsnew.fyi/product/mobx)
- Vendor: MobX
- Date: 2021-11-01
- Version: 6.3.6
- Original notes: https://github.com/mobxjs/mobx/releases/tag/mobx%406.3.6
- Permalink: https://whatsnew.fyi/product/mobx/releases/6.3.6

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** — Have cancelled when reject with an error rather than a string
- **fixed** — makeObservable throws when mixing @decorator syntax with annotations

###### Patch Changes

-   [`49468204`](https://github.com/mobxjs/mobx/commit/49468204d3bc28d15dbf383c0b7f874ca26dff30) [#3162](https://github.com/mobxjs/mobx/pull/3162) Thanks [@upsuper](https://github.com/upsuper)! - Have cancelled when reject with an error rather than a string


-   [`4afb1ec2`](https://github.com/mobxjs/mobx/commit/4afb1ec24427cf8e1f768d0c6fc49d0f44f4ab8e) [#3154](https://github.com/mobxjs/mobx/pull/3154) Thanks [@urugator](https://github.com/urugator)! - `makeObservable` throws when mixing @decorator syntax with annotations