# MobX 6.6.2

- Product: MobX (https://whatsnew.fyi/product/mobx)
- Vendor: MobX
- Date: 2022-09-07
- Version: 6.6.2
- Original notes: https://github.com/mobxjs/mobx/releases/tag/mobx%406.6.2
- Permalink: https://whatsnew.fyi/product/mobx/releases/6.6.2

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** — Allow readonly tuples as part of IObservableMapInitialValues
- **fixed** — Fix regression in LegacyObservableArray compatibility with Safari 9
- **changed** — Update README with improved wording and clearer links

###### Patch Changes

-   [`b375535c`](https://github.com/mobxjs/mobx/commit/b375535c422453963f5d3485a2ef5233568c12a6) [#3344](https://github.com/mobxjs/mobx/pull/3344) Thanks [@Nokel81](https://github.com/Nokel81)! - Allow readonly tuples as part of IObservableMapInitialValues


-   [`7260cd41`](https://github.com/mobxjs/mobx/commit/7260cd413b1e52449523826ac239c2a197b2880f) [#3516](https://github.com/mobxjs/mobx/pull/3516) Thanks [@urugator](https://github.com/urugator)! - fix regression #3514: LegacyObservableArray compat with Safari 9.\*


-   [`78d1aa23`](https://github.com/mobxjs/mobx/commit/78d1aa2362b4dc5d521518688d6ac7e2d4f7ad3a) [#3458](https://github.com/mobxjs/mobx/pull/3458) Thanks [@egilll](https://github.com/egilll)! - A slight revamp of the README, wording, and clearer links