# MobX 6.1.7

- Product: MobX (https://whatsnew.fyi/product/mobx)
- Vendor: MobX
- Date: 2021-02-17
- Version: 6.1.7
- Original notes: https://github.com/mobxjs/mobx/releases/tag/mobx%406.1.7
- Permalink: https://whatsnew.fyi/product/mobx/releases/6.1.7

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** — User provided debug names are not preserved on production
- **fixed** — Property atom's debug name is dynamic on production
- **fixed** — observable(primitive, options) ignores options
- **fixed** — getDebugName(action) throws [MobX] Cannot obtain atom from undefined
- **fixed** — Terser using unsafe: true

###### Patch Changes

-   [`5640aa77`](https://github.com/mobxjs/mobx/commit/5640aa7794420a5fc2f99ac0819de11696d6ba71) [#2799](https://github.com/mobxjs/mobx/pull/2799) Thanks [@urugator](https://github.com/urugator)! - - fix: user provided debug names are not preserved on production
    -   fix: property atom's debug name is dynamic on production
    -   fix: `observable(primitive, options)` ignores `options`
    -   fix: `getDebugName(action)` throws `[MobX] Cannot obtain atom from undefined`
    -   [fix: terser using `unsafe: true`](https://github.com/mobxjs/mobx/issues/2751#issuecomment-778171773)